NOAA KLM User's Guide

Section 9.7.4

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9.7.4 Data Dictionary

The data dictionary contains an entry for each lowest level data item, and in some cases, group items, found in each of the OOPS data sets. Where the same information occurs on more than one data set, even if stored in different units (e.g., radians vs. degrees), it has been given a common name and only occurs once in the data dictionary. Individual byte/bit breakdowns (e.g. series of 1 bit flags) of these items will not be listed as separate entries in the data dictionary.

The data set name abbreviations used in the data dictionary are given below for reference:

Data Set Abbreviations
Data Set Data Abbreviation in Data Dictionary
Product Master File PMF
ib ib

Data Dictionary
Data Item Data Sets Description
Analog Telemetry 1b Seventeen SBUV/2 analog telemetry points, sampled at 16 second intervals. Analog telemetry data are found in word 13 of the TIP minor frames. For all but orbital and daily statistical records on the 1b data set, these data are given in terms of counts. On orbital and daily statistical records these are given in engineering units. For ranges and scaling factors see Section 9.7.1.5.
No. Telemetry Point Name
1. SM Baseplate Temp. #2 (1)
2. SM Shroud Temp.
3. Depolarizer Housing Temp.
4. HVPS Temp.
5. Diffuser Plate Temp #2 (1)
6. Chopper Motor Temp.
7. Grating Motor Temp.
8. Diffuser Motor Temp.
9. Cal Lamp Motor Temp.
10. Electrometer Temp.
11. Cal Lamp Power Supply Temp.
12. Diffuser Radiator Temp.
13. ELM Temp.
14. LVPS Temp.
15. Diffuser Heater Current or not applicable (2)
16. Baseplate Heater Current or Cal Lamp Heater Current (2)
17. 28 V Main Power
Notes:
(1) powered from the 28 V analog TM BUS
(2) First choice is for NOAA- F and G, second for NOAA- H, I, J, K, L and M
A priori covariance Matrix 1b 144 elements of covariance matrix
A priori Profile Coefficients 1b 180 coefficients for computing first guess ozone profiles
Atmosphere Surface Backscatter Fraction 1b Ratio used in multiple scattering correction and ozone inversion scheme (170 values)
Bad Quality Major Frame Flag 1b Flag indicating one or more of themajor frame quality flags has been set to true (i.e. = 1) thereby indicating a problem in the data. Bit set to 0 = no problem, 1 = problem.
Band Center Wavelengths 1b, PMF 13 standard SBUV/2 wavelengths (Angstroms) ordered from shortest to longest range: 2500-4000 Angstroms
Boost Mode Flag 1b Flag indicating spacecraft in boost mode, usually the first 5 minutes following launch, during one or more TIP minor frames, therefore the data should not be used. Bit set to 0 = not boost mode, 1 = boost mode.
CCR Data 1b Same as Monochromator Range Data, but for Cloud Cover Radiometer
CCR and Monochromator overrange Flags 1b 0 = not overrange
1 = overrange; increase corresponding monochromator range or CCR data by 216.
In Discrete Mode, for each monochromator range (1,2,3) and CCR.
For Sweep Mode, flags for selected monochromator range for each of 10 samples, plus CCR.
WARNING: Flags not set properly by the instrument, thus not to be used in any calculations using range counts.
Channel Error Flags 1b 32 one bit flags set if inconsistent data encountered in a particular channel. Flag set if:
a) More or less than one grating mode flag is set or
b) Inconsistent Hg lamp position given or invalid lamp position or
c) more or less than one diffuser position given or invalid diffuser position or
d) more than one automated sequence, given MSB represents first channel (second), LSB represents last channel (second) in 32 second major frame.
Flag settings are:
0 = no inconsistent data this channel
1 = inconsistent data this channel
Channel Fill Flags 1b 32 one bit flags set if certain errorsencountered in a particular channel.
0 = no errors encountered
1 = error encountered this channel.
Error encountered is:
a) data gap (all channel fill flags set in this case) or
b) channel frame sync error or
c) minor frame quality flag set for this channel.
MSB represents first channel (second),LSB represents last channel (second) in 32 second major frame.
DACS Quality 1b DACS quality for a NESDIS Orbit, containing:
a) A count of input TIP minor frames that contain no frame sync word errors,
b) A count of the DACS detected TIP parity errors (for embedded TIP, this is the count of minor frames with parity errors. For stored TIP this is the number of minor frame word groups with parity errors).
c) A count of all auxiliary synch errors detected.
DACS Status 1b DACS status information for a NESDIS Orbit, containing:
a) P/N Flag
0 = Normal Data
1 = P/N Data
b) Data Source
0 = Unused
1 = Gilmore
2 = Wallops
3 = SOCC
c) Tape Direction
0 = FWD (Time incrementing)
1 = REV (Time decrementing)
d) Data Mode
0 = Test Data
1 = Flight Data
Data End Date And Time All-OOPS Year, Julian day, and second of day of last data in the data set. This data is placed in the OOPS standard header.
Data Fill Flag 1b Flag indicating one or more minor frames of the TIP major frame contain fill data. The data should not be used. Bit set to 0 = no data fill, 1 = contains data fill.
Data Generation Date and Time All-OOPS Year, month, day, hour, minute and second for is creation of data in the data set. This data placed in OOPS standard header.
Data or Program Version Change Description All-OOPS Explanation of change(s) from previous to current version of data due to data version and/or program version change. This is placed in OOPS standard header.
Data Records Read PMF Number of data records from 1b data
Data Records Written PMF Number of data records written to PMF
Data Set Name All-OOPS Name of data set in OOPS standard header (e.g. Daily 1b Data Set)
Data Start Date and Time All-OOPS Year, Julian day, and second of day of first data in the data set. This data is placed in the OOPS standard header.
Data Type 1b Type of data where:
1 = LAC
2 = GAC
3 = HRPT
4 = TIP
5 = HIRS/2
6 = MSU
7 = SSU
8 = DCS
9 = SEM
For SBUV/2 data, the source of data can only be 1, 2, or 3.
TIP Source:
1 = Embedded TIP
2 = Stored Tip
3 = Third CDA TIP
Data Version All-OOPS Version number, given by xxa, for data/data set. Given in OOPS standard header (e.g. 01A). Number xx is incremented by 1 for:
a) a change in the format of this data set either in the type of logical record types on the data set or the definition or arrangement of the data in a logical record type or
b) a change in an algorithm used to generate data on the data set such that the data set generated with this new algorithm is not identical to the previous data version.
c) a change in any input data set used to create it. The change may be caused by either an algorithm change in the program that created it or inclusion of updated data into an existing reference data set (e.g., for new ancillary coefficients).
Letter a would change when the data set was regenerated with new data replacing old data or data being subtracted from the original data set but the process by which the data is calculated and placed on the data set has not changed. An example of this would be regenerating a data set by replacing missing data with good data. Any change to number xx would cause letter a to be reset to A.
Date of Job Run PMF Date of data file production (e.g., MON DEC 10, 1984)
Day 1 Solar Irradiance 1b, PMF Baseline Solar Irradiance values for each discrete monochromator channel and CCR.
Day of Year All-OOPS Julian day of year. Range: 1-366
Day of Year of First/Last Major Frame in SBUV Orbit 1b Day of year of first/last available major frame in SBUV/2 orbit. Range: 1-366
Digital A (Subcom)
Analog Housekeeping
1b Contains the SBUV/2 housekeeping information identified. Each channel sampled twice per major frame (32 seconds). For ranges and scaling factors see Section 9.7.1.5. For all but orbital and daily statistical records on the 1b data set, these data are given in terms of counts. On orbital and daily statistical records these are given in engineering units.
Channel Function
1A Chopper Motor Current
2A Diffuser Motor Current
3A HVPS Volts
4A Thermistor Bias (+10 V REF)
5A CAL Lamp Temp.
6A ECAL Ref. Voltage
7A +15 V Sensors-volts
8A -15 V Sensors -volts
9A +24 V Motor-volts
10A +5 V LED-volts
11A +10 V Logic-volts
12A CAL Lamp Current
13A Spare
14A Grating Coarse Error
15A Grating Motor Current
16A Lamp Motor Current
1B Spare
2B Diffuser Plate Temp.
3B Baseplate Temp.
4B +25V Power-volts
5B +15 V Servo-volts
6B -15 V Servo-volts
7B CCR Diode Temp.
8B SM Differential Temp. Y
9B SM Differential Temp. Z
10B Differential Ref. Temp. Z
11B Differential Ref. Temp. Y
12B PMT Cathode Temperature
13B Spare
14B Chopper Phase Error
15B Spare
16B Spare
Digital B Telemetry 1b Twenty-two Digital B telemetry points which echo the SBUV/2 specific commands sent to the spacecraft. Each point is sampled at 3.2 second intervals. Digital B telemetry data specified to the SBUV/2 instrument are found in word 12 of the TIP minor frames. In order to conserve space on the 1b, only the first and sixth 3.2 second intervals are retained in the 22 least significant bits of the words. The telemetry points comprising Digital B are as follows:
No. Telemetry Point Name Logic State(1/0)
1 Instrument Power On/Off
2 Discrete Command Yes/No
3 Sweep Command Yes/No
4 Wavelength Calibrate Command Yes/No
5 Position command Yes/No
6 High Voltage Yes/No
7 Motor Power On/Off
8 Lamp On/Off
9 Lamp Enable/Disable
10 Lamp assembly command Open Cmd. /Closed Cmd
11 High voltage Enable/Disable
12 Diffuser Stow command Yes/No
13 Diffuser Monitor command Yes/No
14 Diffuser Sun Command Yes/No
15 Diffuser Decontaminate Command Yes/No
16 Chopper Encoder Sensors Primary/Backup
17 Grating Encoder Sensors Primary/Backup
18 Diffuser Position Sensors Primary/Backup
19 Lamp Position Sensors Primary/Backup
20 Grating Drive Fix/Flex Fix/Flex
21 Baseplate Heater (NOAA- F & G) or Cal Lamp (NOAA-HIJKL&M) On/Off
22 Diffuser Heater On/Off
Discrete/ Sweep Record 1b 0: Discrete format indicator
1-12: Sweep record format. A complete sweep cycle is 6 major frames (2 records per frame, e.g., code 2 = second record of first frame).
-1: either a) inconsistent data format (discrete or sweep) within major frame or b) inconsistent sweep grating position within major frame.
Dwell Mode Flag

1b

Flag indicating TIP in Dwell mode during one or more minor frames of the TIP major frame. Data in that minor frame(s) has a specific analog channel data and not the normal SBUV/2 data, therefore the data is incorrect. Bit set to 0 = not in dwell mode, 1 = TIP in dwell mode.
Effective Ozone Absorption Coefficients 1b, PMF Computed (12 discrete + CCR) coefficients corresponding to 13 standard SBUV/2 wavelengths (shortest to longest), range 300-0 (atm-cm-1).
End time 1b TIP time code giving year, day and milliseconds of day from the last TIP major frame of data appearing in a given TIROS-N Series orbit.
Final Channel Quality Flags 1b 32 one bit flags, set if any errors encountered for this channel
0 = No errors
1 = errors encountered:
a) channel error flag set this channel or
b) channel fill flag set this channel or
c) channel fill flag of next channel set. If current channel is last channel of current major frame, final channel quality flag is set if fill flag of first channel of next major frame is set.
MSB refers to first two channels (first 2 seconds of major frame 0, LSB refers to last channel (second) of this major frame and first channel (second) of next major frame.
Final Residues

PMF

Computed as:
{Q sub {obs} -Q sub {mar} - Q sub {ss}} over Q sub {obs}

where,

Qobs = Q-value obtained from the observedradiance;
Qmar = Q-value that refers only to the multi-scatteredand reflected component of the total intensity (obtained from a lookup table).
Qss = Q-value that refers to the single scattered component of the total intensity (calculated within the program).

FOV Average Cloud Amount 1b Average cloud amount in percent for the four longest wavelength SBUV/2 FOVs.
FOV Average Cloud Top Pressure 1b, PMF Averaged cloud top pressure in millibars for the four longest wavelength SBUV/2 FOVs.
FOV Average Cloud Temperature 1b Averaged temperature profile in Kelvin x 64 for given pressure levels for the four longest wavelength SBUV/2 FOVs. Set to 0 if the Edit Flag indicates a bad sounding.
FOV Latitude 1b FOV latitude is the geodetic latitude of the FOV at the start of the major frame. Expressed in degrees x 102. Northward latitudes are positive. Latitude range: -90 to 90 degrees
FOV Longitude at Start of First/Last Major Frame in SBUV/2 Orbit 1b Longitude at start of first/last available major frame in SBUV/2 orbit expressed in degrees x 100. Positive longitudes are eastward. Range: -180 to 180 degrees.
FOV Snow/Ice Flag 1b, PMF Surface condition flag indicating a frozen surface cover (i.e. snow and/or ice) for the SBUV/2 FOV.
1 = frozen surface
0 = non-frozen surface
-1 = missing
FOV Surface Pressure 1b Surface pressure interpolated from surface pressure data set for the center of the SBUV/2 FOV halfway into the major frame (i.e., 16 seconds from TIP time). This time represents the beginning of the data collection for the four longest wavelengths used in the total ozone computation. Pressure given in mb.
Gain Selection Code PMF Indicates recommended gain range for each wavelength.
Grating Position Error . Note: for flight Model #1 the count value will range between 0 and 10 counts since the telemetry point was grounded out.
Initial Residues PMF Same as final residues except that first guess ozone is used to compute Qssand Qmsr
Instrument Data Quality Flag 1b A compilation of 4 quality flags for the time covered by this record.
Flag 0 1
Master Power On Off
High Voltage On Off
Frame Sync In Sync Not in Sync
Data Contamination due to automated command sequence taking place Not Contaminated Contaminated
For each flag, 2 = data unavailable for determination due to fill.
For each flag, 3 = Inconsistent status during the 32 seconds.
This information pertains to all non-filled 32 seconds of data during both discrete and sweep modes except when E-CAL/ Retrace is on (last 8 seconds during discrete mode or last 24 seconds at the end of a six major frame sweep cycle).
Instrument Name All-OOPS Name of instrument (i.e., SBUV/2) in OOPS standard header.
Interrange Ratio Coefficient Ranges 1b Ratio of counts minus offset between monochromator gain
Julian Day 1b, PMF Day number counted from first day of current year
Layer Ozone PMF Individual ozone amounts (m-atm-cm) in 12 pressure layers.
UMKEHR LAYER # mb
12 .0002-.0001 0.25 - 0.12
11 .0005-.0002 0.49 - 0.25
10 .0010-.0005 0.99 - 0.49
9 .0020-.0010 1.98 - 0.99
8 .0039-.0020 3.96 - 1.98
7 .0078-.0039 7.92 - 3.96
6 .0156-.0078 15.83 - 7.92
5 .0313-.0156 31.66 - 15.83
4 .0625-.0313 63.33 - 31.66
3 .1250-.0625 126.66 - 63.33
2 .2500-.1250 253.31 - 126.66
1 1.0000-.2500 1013.25 - 253.31
Layer Ozone Standard PMF Standard deviation for solution profile individual ozone amounts (%) in 12 pressure layers.
Level Ozone PMF Individual ozone amounts at 19 pressure levels.
Level # Level Pressure (mb)
1 0.3
2 0.4
3 0.5
4 0.7
5 1.0
6 1.5
7 2.0
8 3.0
9 4.0
10 5.0
11 7.0
12 10.0
13 15.0
14 20.0
15 30.0
16 40.0
17 50.0
18 70.0
19 100.0
Log Io 1b From total ozone tables, 1700 tabularized values of the natural log of the intensity of atmospheric backscattered radiation
Log Q (Single Scattered) 1b From multiple scattering correction tables, 1700 values of the natural log of the single scattered Q-value.
Logical Sequence Number PMF Sequential record number reset to 1 at the beginning of each orbit.
Major Frame Counter 1b Counter of available major frames in an orbit, starting with 1.
Major Frame Quality 1b Single bit quality flags. Flags covering the duration (32 records) of the major frame.
0 = no error or given circumstances has not occurred
1 = Error or given circumstance has occurred.

See also definitions of the individual major frame quality flags:

Bad Quality Major Frame Flag
Time Error Flag
Dwell Mode Flag
Boost Mode Flag
Data Fill Flag
Missing Attitude Error Flag
No SBUV/2 Earth Location Flag
Unreasonable Date or Time Flag
Non-time Ascending Flag
Out of Range Attitude Data Flag
Out of Range Analog telemetry Data Flag
Out of Range Earth Location Data Flag
Major/Minor Frame Inconsistency Flag
Note: The MSB (leftmost bit) of the word contains the Quality Summary Flag. It is set to 1 if any other flag is 1; otherwise it is 0.
Major/Minor Frame Inconsistency Flag 1b (1) One or more minor frame quality flags are set to 1 (error condition) but the associated major frame quality flags (time error, dwell mode, boost mode, data fill) are not set to 1; or (2) the reverse is true: one or more of these major frame quality flags is set to 1 but no minor frame quality flag is on.
Memory Verify 1b See TIROS-N Unique Instrument Interface for SBUV/2.
Minor Frame Quality Flags 1b 32 one bit flags, each covering one channel or ten minor frames of the current major frame.
0 = no error has occurred this channel
1 = error occurred this channel
Minor frame quality flags are set during decommutation and indicate one or more of the following occurred in the channel:
Time error
Dwell mode
Boost Mode
Data Fill
Missing Attitude Data Flag 1b One or more of roll, pitch or yaw is missing in the major frame (Bit set to 0 = All data present, 1 =missing data).
Monochromator Data 1b Same as Monochromator Range Data but for Sweep Mode.
Monochromator Grating Position 1b Item contains position, segment being read and digital lock indicator. Grating position: 13 bit (see byte/bit breakdown) signed integer given in counts. Count range: -4095 to 4095. (Negative numbers given as 2's complement). Note: In sweep mode, samples are taken at 10 grating positions, corresponding to 10 wavelengths, per second. The grating position that is stored in sweep mode corresponds to the last wavelength sampled in this second. See Major Frame Synchronization in Section 9.7.1.2.2 for more details.
Segment being read: 2 bits indicating which of the four flex mode segments (memories) is being used.
0 = segment 0 being read
1 = segment 1 being read
2 = segment 2 being read
3 = segment 3 being read
Digital Lock: 1 bit flag indicating whether the grating position was in its locked position, bit set to 1 or unlocked position bit set to 0. Data collection is valid only when the grating position is locked.
Monochromator Range Data 1b Discrete Radiance/Irradiance counts measured by the monochromator. Range = 0 to 65,535 counts. If the corresponding Monochromator Overrange Flag is set to on (1) then add 216 to this value. WARNING: Monochromator Overrange Flags are not set properly by the instrument. They should not be used in any calculation using range counts. If the Retrace/ECAL Flag (see Sample Status Flag #1) is on (1), this is electronic calibration data.
Monochromator Range ID 1b Corresponds to one of the three monochromator ranges.
1 = Range 2 (0-10 na, discrete mode; 0-125 na, sweep mode)
2 = Range 1 (0-100 pa, discrete mode; 0-1.25 na, sweep mode)
3 = Range 3 (0-1µa, discrete mode; 0-12.5 µa sweep mode)
Multiple Scattering Correction PMF Multiple scattering and reflectivity correction to Q-value for five longer profile wavelength channels.
Multiple Scattering Mixing Fraction PMF Multiple-scattering mixing fraction for five longer profile wavelength channels.
Multiple Scattering Sensitivity PMF Sensitivity of multiple-scattering and reflectivity correction to total ozone for five longer profile wavelength channels.
N-value PMF Attenuation number computed as:
N = -100 log10 (I/F)
where I = Backscattered radiance and F = Incident solar flux
NESDIS Orbit Number 1b The NESDIS orbit number is assigned by NESDIS for one revolution starting/ending at the ascending node equator crossing. For the SBUV/2 borne afternoon satellite the NESDIS orbit number at the start of the SBUV/2 orbit will be the same as the SBUV/2 orbit number. The NESDIS orbit number at the end of the SBUV/2 orbit will be one greater than the SBUV/2 orbit number.
No SBUV/2 Earth Location Data Flag 1b Flag indicating no Earth location data is available for either the start or end of the TIP major frame data. Bit set to 0 = Earth location present, 1 = missing Earth location data.
Non-Time Ascending Data Flag 1b Flag indicating major frame date or time precedes previous major frame. Bit set to 0 = no problem, 1 = non-time ascending data.
Number of Coefficients for Interrange Ratios 1b Number of discrete monochromator channels for which interrange ratios are given.
Number of Data Gaps 1b Number of data gaps occurring in a given TIROS-N series (NESDIS) Orbit. A data gap that covers one or more consecutive TIP major frames is counted as one data gap. NESDIS orbits, as transmitted, may include some overlap with the previous or subsequent orbit. Data gaps that occur in the overlap will be included in the counters for both NESDIS orbits.
Number of Major Frames 1b Total number of TIP major frames in a given TIROS-N (NESDIS) Orbit. NESDIS orbits, as transmitted, may include some overlap with the previous or subsequent orbit. Major Frames in the overlap will be included in the counters for both NESDIS orbits.
Number of Iterations PMF Number of iterations used by the profiling algorithm in a given retrieval.
OOPS Standard Header ALL-OOPS Audit trail information at the beginning of each OOPS data set.
Required:
Record ID
Spacecraft ID
Instrument name
Data set name
Data version
Data generation date & time
Program name
Program version and data
Optional (when applicable):
Data start date and time
Data end date and time
Version Change description
Standard/Non-standard
Wavelength Flag
Out of Range Analog 1b Flag indicating one or more Telemetry data Flag analog telemetry points is outside the range given in Data Dictionary. Bit set to 0 = all data in range, 1 = one or more points out of range.
Out of Range Attitude Data Flag 1b Flag indicating one or more attitude quantities (roll, pitch, yaw) in major frame is outside the range given in the Data Dictionary. Bit set to 0 = all attitude data in range, 1 = values out of range.
Out of Range Earth Location Data Flag 1b Flag indicating one or more Earth location values is outside the range given in the Data Dictionary. Bit set to 0 = all Earth location data in range, 1 = value(s) out of range.
Ozone Error Flags PMF Total Ozone
0 - Low path length, good scan
1 - High path length, good scan
2 - Very high path, good scan
3 - Spare
4 - Inconsistency between best ozone and the largest weighted ozone pair
5 - Difference between best ozone and total ozone for profile greater than three sigma
6 - Spare
7 - Photometer Reflectivity and monochromator reflectivity differ by more than 0.15
8 - Best Reflectivity out of range (less than - 0.05 or greater than 1.05)
9 - A-pair, B-pair or C-pair ozone exceeds the dynamic range of the tables. The dynamic ranges are:
Latitude less than 15 : 180 to 350 Dobsen Unit (DU)
Latitude 15 to 45 :180 to 600 DU
Latitude greater than 45 : 180 to 650 DU
10-19 Same as above except the data taken in descending mode.

Profile:

0 - No error
1 - Lower level anomaly
2 - Inconsistency between best ozone and profile total ozone
3 - Final residue greater than three sigma
4 - Measured Q-value calculated with a priori profile and multiple-scattering/Reflectivity correction
5 - C greater than 3.0 DU or less than 0.5
6 - Sigma greater than 0.8 or less than 0.3
7 - Reflectivity is less than -0.05, greater than 1.05, or changes by more than 0.05 from wavelength to wavelength
8 - Total ozone not available
9 - Bad radiance or eclipse contamination
Ozone Mixing Ratios PMF Solution mixing ratio (micro-gm/gm) at 19 pressure levels
Ozone Sensitivity PMF Sensitivity of a pair of wavelengths is defined as dNp/dO, where Np is the difference in the N-value of pair wavelengths and O is the total ozone
Percent Cloud PMF Percent cloud cover computed by Product Processor using CCR and snow/ice information (0 - 100).
Pitch Euler Error Angle 1b Pitch Euler error angle of the spacecraft given in radians x 8,192. Expected range: -0.2 to 0.2 degrees (3 sigma).
Prelaunch Radiance /Irradiance Calibration 1b Instrument specific prelaunch radiance or irradiance counts to engineering units conversion constants for each of 12 discrete wavelengths at each of 3 PMT gain ranges, plus 1 value for CCR. (Irradiance : W/cm3, radiance: W/cm3/sr).
Pressure of Reflecting Surface PMF Effective surface pressure (mb).
Processing Block Identification 1b Seven digit (EBCDIC) number identifying the spacecraft revolution (NESDIS orbit number) in which recording of this data set began and the revolution (NESDIS orbit number) in which it terminates (the first 5-digits identify the beginning revolution and the last two identify the concluding revolution).
Processing Counters PMF The following counters have been defined for total ozone processing:
1 - not used (0)
2 - data records read
3 - data records written
4 - output records unprocessed (5+7)
5 - solar zenith angle greater than limit
6 - not used (0)
7 - bad counts and solar eclipse data
8 - Non-zero total ozone error flag (sum of 9-14)
9-18 - total ozone error flags 9-0 (reverse order)
19 - bad radiance (profile wavelength only)
20 - no total ozone available
21 - records with profile ozone error flag greater than 2
22-28- profile ozone error flags 3-9
Processing Options PMF There are 20 possible processing options, only four of which are currently implemented (false - disabled, true - enabled):
6 - Profile processing
7 - Do not use seventh channel in profile processing
8 - Do not use first channel in profile processing
9 - Do not use ninth channel in profile processing
Processing Parameters PMF Limiting values used to edit input 1b data. They include:
Maximum SZA 0-90 degrees
Minimum latitude -90 to +90 degrees
Maximum latitude -90 to +90 degrees
Minimum latitude must be less than maximum latitude (under normal processing conditions, max. SZA = 92, min. latitude = -90, max. latitude = +90).
Program Name All-OOPS Name of program that generated the data. Name in OOPS standard header.
Program Version All-OOPS Version number given as xx.yy, for program. This is given in OOPS standard header (e.g., 01.01) Number xx is incremented by 1 when a change in the program alters the format of the output data set(s) or the contents of the output data set(s) other than generation run time, such that if the program was rerun with the same input data sets, it would not generate an identical (except for generation run time) output data set.

Number yy is incremented by 1 when a change in the program does not alter the format or content of the output data set. Such changes might be enhancements to printed output, insertion of additional comments to the program, etc. Any change to number xx would cause number yy to be reset to 01.

Program Version Date All-OOPS Year, month and day that generating program version was made operational.
Q-Value PMF Normalized radiance - irradiance ratio. Given for each profile wavelength.
Radiance Calibration PMF Counts to radiance conversion factors used in ozone computation (W/cm3/sr/count).
Radiometric DC Level 1b TIROS-N Unique Instrument Interface for SBUV/2.
Rayleigh Scattering Coefficients 1b, PMF Rayleigh scattering coefficients computed for each of the 13 (12 discrete + CCR) SBUV/2 wavelengths, in order from short to long.
Recommended Monochromator Range Data 1b Actual counts obtained for the reommended monochromator range.
Recommended Monochromator Range Data ID 1b One of three monochromator range ID's, it is chosen as follows:
If Range 3 data is greater than or equal to 719 counts then Range ID = 3.
If Range 2 data is greater than or equal to 719 counts and Range 3 data is less than 719 counts the Range ID = 2
If Range 2 and 3 are less than 719 counts then range ID =1
Record ID All-OOPS Unique record identification number for each record type in the 1b Data Set. See Table 9.7.1.4-1.
Reflected Fraction 1b 1700 values of this ratio used in the multiple scattering correction and ozone inversion scheme.
Reflectivity PMF Effective surface reflectivity computed by total ozone algorithm (fraction).
Reflectivity Difference PMF Difference between the reflectivity computed using the photometer and that using the monochromator.
Roll Euler Error Angle 1b Roll Euler error angle of the spacecraft given in radians x 8192. Expected range -0.2 to 0.2 degrees (3 sigma)
SBUV/2 Day Number 1b The day number of the first major frame of the current SBUV/2 orbit, counted from day of launch.
SBUV/2 Orbit Number 1b, PMF An SBUV/2 orbit is defined as data collected from one revolution of the Earth starting/ending at the dark side of Earth equator crossing. For an afternoon satellite (the SBUV/2 instrument will only be carried on an afternoon satellite), the dark side equator crossing occurs on the descending node. The SBUV/2 orbit number is based on the NESDIS orbit number in that it will be the same as the NESDIS orbit number for the first half of the SBUV/2 orbit (i.e. from descending node equator crossing to ascending node equator crossing). For the second half of the SBUV/2 orbit the NESDIS orbit number would be one greater.
Sample Status Flag #1 1b A series of status flags:
Data format: discrete/Sweep (0/1)
Retrace (ECAL) Off/On (0/1);
ECAL Step #A-E (0-7) where:
Step A = 1 to 4
B = 5
C = 6
D = 7
E = 0
Grating Mode:
0 = Discrete
1 = Wavelength Calibration
2 = Position
3 = Sweep
4 = Diffuser Decontamination
7 = Inconsistent (i.e., more than one mode set)
(Differs from Ball Brothers convention) Information pertains to 2 second interval (one discrete sample) in discrete mode; pertains to one second interval for sweep mode (ten sweep samples).
Sample Status Flag #2 1b A series of status flags:
Grating Memory Mode: Fix/Flex(1/0)
Grating Index: Found/Not Found(1/0)
Frame Sync Code: In Sync/Not in Sync(0/1)
Automated Command:
0 = None enabled
1 = Discrete sun enable
2 = Sweep sun enable
3 = Wavelength-calibration enable
Command Sequence state: Step number for one of three Automated Command Sequences, three series of SBUV/2 commands designed to provide for execution of a number of commands with only a single command being sent. These three set sequences, namely Discrete Sun Enable, Sweep Sun Enable and Wavelength Calibration Enable, each have up to eight command sequence states. In each command sequence, a particular SBUV/2 command is executed. Information pertains to two second interval (one discrete sample) in discrete mode; pertains to one second interval for sweep mode (ten sweep samples).
Sample Status Flag #3 1b A series of status flags:
Master Power On/Off (0/1)
Calibration Lamp timer: Not Time Out/Time Out (0/1)
Cal-Lamp Position: Open(0); Closed (1); Inconsistent or Invalid (3)
Diffuser Timer: Not Time Out/Time Out (0/1)
Diffuser Position:
0 - Stowed
1 - Sun
2 - Monitor
3 - Decontaminate
7 - Invalid
Information pertains to two second interval (one discrete sample) in discrete mode; pertains to one second interval for sweep mode (ten sweep samples)
Sample Status Flag #4 1b A series of status flags:
Code Address A
Code Address B
Code Data Bit 1 to 6 (LSB) information pertains to two second interval (one discrete sample) in discrete mode; pertains to one second interval for sweep mode (ten sweep samples).
Scene Mode 1b Radiance Source to the SBUV/2 instrument
0 = Earth Scene
1 = Same as above except for diffuser sun scene.
2 = Same as above except for direct Hg lamp scene
3 = Same as above except for diffuser-Hg lamp scene.
7 = Scene mode unavailable for determination (all channel fill flags set)
9 = Inconsistent/changing scene mode
This information pertains to all non-filled 32 seconds of data during both discrete and sweep modes except when E-CAL/ Retrace is on (last 8 seconds during discrete mode or last 24 seconds at the end of a six major frame sweep cycle) or fill encountered.
Seconds of Day All-OOPS Seconds of day. Range: 0-86,399.
Seconds of Day at Start of First/Last Major Frame in SBUV/2 Orbit 1b Seconds of day at start of first/last available major frame in SBUV/2 orbit. Range: 0-86,399.
Solar Azimuth Angle at FOV 1b Solar azimuth angle measured in the tangent plane from a line through the FOV due north to the projection of the sun line into the tangent plane. Measured clockwise as seen from the zenith. Expressed in degrees x 100. Range: -180 to 180 degrees.
Solar Declination 1b Solar declination (celestial latitude) angle at the start of the major frame. This is an angle between the sun and the inertial equator measured in a plane normal to the inertial equator (meridian) containing the sun. North of the equator is positive. Expressed in degrees x 100. Range: -90 to 90 degrees
Solar Right Ascension 1b, PMF Solar right ascension (Celestial longitude) angle at the start of the major frame. This angle is measured in the plane of the equator from a fixed inertial axis in space (Vernal Equinox) to a plane normal to the equator (meridian) containing the sun. Eastward from the Vernal Equinox is positive. Expressed in degrees x 100. Range: -180 to 180 degrees.
Solar Zenith Angle at FOV 1b, PMF Solar zenith angle, measured at the FOV between the zenith normal to the tangent plane (horizon) at the FOV and the sun. Expressed in degrees x 100. Range: 0 to 180 degrees.
Spacecraft Altitude 1b The spacecraft altitude, in integer kilometers at the start of the major frame. Range: 833 +/- 90 km.
Spacecraft Centered Solar Azimuth Angle 1b Solar azimuth angle in spacecraft centered coordinate system. Expressed in degrees x 100. Range: -180 to 180 degrees.
Spacecraft Centered Solar Elevation Angle 1b Solar elevation angle in spacecraft centered coordinate system. Expressed in degrees x 100. Range: -180 to 180 degrees.
Spacecraft Identification 1b The identifier of the spacecraft from which the data was obtained where:
0 - Spare
1 - TIROS-N                       NOAA-H (N-11)
2 - NOAA-A (N-6)             NOAA-I (N-13)
3 - NOAA-B                       NOAA-J (N-14)
4 - NOAA-C (N-7)              NOAA-K (N-15)
5 - NOAA-D (N-12)        
6 - NOAA-E (N-8)
7 - NOAA-F (N-9)        
8 - NOAA-G (N-10)
Spacecraft Name All-OOPS TIROS-N series spacecraft name (e.g., NOAA-8) in OOPS standard header.
Standard/ Non-standard Wavelength Flag 1b Indicates that (1) one or more of the 12 discrete wavelengths in one or more major frames(determined from grating mode position) does not match the wavelengths in the Ancillary Data Set, and/or (2) the start sweep mode wavelength in one or more scans does not match the preassigned value. This condition is expected to occur when wavelengths are changed using FLEX mode for special scientific studies:
STND = All wavelengths standard,
SPEC = One or more non-standard wavelengths detected in this Daily 1b Data Set
Start Time 1b TIP time code given in year, day, and milliseconds of day from the first TIP major frame of data appearing in a given TIROS-N (NESDIS) orbit.
Subsatellite Latitude 1b, PMF Subsatellite geodetic latitude at the start of the major frame as expressed as degrees x 100. Positive latitudes are northward, Range: -90 to 90 degrees (expressed as decimal degrees on PMF).
Subsatellite Longitude 1b, PMF Subsatellite longitude at the start of the major frame expressed as degrees x 100. Positive longitudes are eastward. Range: -180 to 180 degrees (expressed as decimal degrees on PMF ).
Summary Grating Memory Wavelength 1b 0 = fix mode; standard wavelength
1 =flex mode; standard wavelength
2 = fix mode, non-standard wavelength
3 = flex mode, non-standard wavelength
7 = mode unavailable for determination (all channel fill flags set)
9 = inconsistent/changing mode
This information pertains to all non-filled 32 seconds of data during both discrete and sweep modes except when E-CAL/Retrace is on (last 8 seconds during discrete mode or last 24 seconds at the end of a six major frame sweep cycle)
Summary Grating Mode 1b Monochromator Grating Mode:
0 = Discrete Mode
1 = Wavelength Calibration Mode
2 = Position Mode
3 = Sweep Mode
4 = Diffuser Decontamination Mode-(based on diffuser position only)
7 = Grating mode unavailable for determination (all channel fill flags set)
9 = Inconsistent/changing modes
This information pertains to all non-filled 32 seconds of data during both discrete and sweep modes except when E-CAL/Retrace is on (last 8 seconds during discrete mode or last 24 seconds at the end of a six major frame sweep cycle).
Table Selection Index PMF Indicates standard profile used in profiling algorithm (1-3)
Terrain Surface Pressure PMF Terrain surface pressure (atm)
Time Error Flag 1b Flag indicating a time error has occurred in one or more of the minor frames of the TIP major frame, thus the data is not correctly time matched and should not be used. Bit set to 0 = no time error, 1 = time error.
Total Ozone PMF Total ozone (m-atm-cm)
UMKEHR . Procedure to get a vertical ozone profile from the ground up using a Dobson Spectral Photometer
Unreasonable Date or Time Flag 1b Flag indicating unreasonable major frame year, day of year, or seconds of day, i.e., year less than 0 or greater than 99, day of year less than 0 or greater than 366, seconds of day less than 0 or greater than 86,399. Bit set to 0 = data in range, 1 = data out of range
Upper Profile Parameters PMF Parameters C and s determined by assuming an ozone profile of the form:

X(p) = Cp1/s

where p = pressure in mb, X= cumulative ozone at pressure level p, s = ratio of the atmospheric scale height and ozone scale height, and C = ozone at 1 mb (DU).

View Latitude PMF Latitude interpreted to the time of measurement of selected wavelengths (-90.0 to 90.0).
View Longitude PMF Longitude interpreted to the time of measurement of selected wavelengths (-180.0 to 180.0).
Volcano Contami-nation Index PMF A measure of the amount of aerosols. Ranges from approximately -10 to +20. Uncontaminated data should be approximately zero. +20 represents maximum contamination. Negative numbers are due to noise in the measurements.
Yaw Euler Error Angle 1b Yaw Euler error angle of the spacecraft given in radians x 8,192. Expected range: -0.2 to 0.2 degrees (3 sigma).
Year All-OOPS Year of First/Last Major Frame in SBUV/2 Orbit. Two digit year (e.g., 84) except digit year in PMF.
Year of First/Last Major Frame in SBUV/2 Orbit 1b 2 digit year of first/last available major frame in SBUV/2 orbit.

Amended April 3, 2007

Amended November 7, 2006



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