aahr1sdd

09/04/97 djm #1

02/06/98 dlf #2

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DATA DICTIONARY: AMSU/A 1B* HEADER RECORD

A1_2ND_STAT_COLD_CAL_LSB - least significant bit of space viewing

position of A1 device occurring in second instrument status word. Space

view positions can have values 0 to 3.

A1_2ND_STAT_COLD_CAL_MODE - cold cal mode flag in second instrument

status word. Value of 1 inicates cold cal mode; 0 indicates other.

A1_2ND_STAT_COLD_CAL_MSB - most significant bit of space viewing

position of A1 device occurring in second instrument status word. Space

positions have range 0 to 3.

A1_2ND_STAT_FULL_SCAN_MODE - full scan mode flag in second instrument

status word. Value of 1 inicates full scan mode; 0 indicates other.

A1_2ND_STAT_MODULE_PWR - module power flag in second instrument

status word. Value of 1 inicates module power is on; 0 implies off.

A1_2ND_STAT_NADIR_MODE - nadir mode flag in second instrument

status word. Value of 1 inicates nadir mode; 0 indicates other.

A1_2ND_STAT_PLLO_PWR - PLLO power flag in second instrument

status word. 1 is primary PLLO; 0 is redundant PLLO.

A1_2ND_STAT_SCANNER_A1_1_PWR - A1-1 scanner power flag in second

instrument status word. Value of 1 indicates scanner power on.

A1_2ND_STAT_SCANNER_A1_2_PWR - A1-2 scanner power flag in second

instrument status word. Value of 1 indicates scanner power on.

A1_2ND_STAT_SURVIVAL_PWR - A1 survival heater power flag in second

instrument status word. Value of 1 indicates heater power on.

A1_2ND_STAT_WARM_CAL_MODE - A1 warm cal mode flag in second

instrument status word. Value of 1 indicates instrument in warm cal mode.

A1_ANALOG_TELEM_ANT_MOTOR_CUR - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-1 and A1-2 antenna motor current.

(4 values: 2 coefficients for 2 devices)

A1_ANALOG_TELEM_GDO_VOLTAGE_C15 - analog telemetry conversion

coefficients a0, a1 for GDO voltage for channel 15.

A1_ANALOG_TELEM_GDO_VOLTAGE_C3/8 - analog telemetry conversion

coefficients a0, a1 for GDO voltage for channels 3 to 8

(12 values: 2 coefficients for 6 channels).

A1_ANALOG_TELEM_N15V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 -15V antenna drive voltage.

A1_ANALOG_TELEM_N15V_PLL_CH9/14 - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 -15V phase lock loop channels

9 to 14 voltage.

A1_ANALOG_TELEM_N15V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 -15V signal processing voltage.

A1_ANALOG_TELEM_P15V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +15V antenna drive voltage.

A1_ANALOG_TELEM_P15V_PLL_CH9/14 - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +15V phase lock loop channels

9 to 14 voltage.

A1_ANALOG_TELEM_P15V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +15V signal processing voltage.

A1_ANALOG_TELEM_P5V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +5V antenna drive voltage.

A1_ANALOG_TELEM_P5V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +5V signal processing voltage.

A1_ANALOG_TELEM_P8.5V_PLL_CH9/14 - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +8.5V phase lock loop channels

9 to 14 voltage.

A1_ANALOG_TELEM_P8V_RECEIVER_AMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A1 +8V receiver amplifier voltage.

A1_ANALOG_TELEM_PLLO_PRI_LOCK - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-2 PLLO primary lock detect.

A1_ANALOG_TELEM_PLLO_SEC_LOCK - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-2 PLLO redundant lock detect.

A1_ANALOG_TELEM_RF_SHELF_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-1, A1-2 RF shelf temperature.

(4 values: 2 coefficients for 2 devices)

A1_ANALOG_TELEM_SCAN_MOTOR_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-1, A1-2 scan motor temperature.

(4 values: 2 coefficients for 2 devices)

A1_ANALOG_TELEM_WARM_LOAD_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A1-1, A1-2 warm load temperature.

(4 values: 2 coefficients for 2 devices)

A1_DC/DC_CONVERTER_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 DC/DC converter.

A1_DETECTOR/PREAMP_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 detector/preamp assembly.

A1_FEED_HORN_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for AMSU-A1, A2 feed horn.

(8 values: 4 coefficients for 2 devices)

A1_IF_AMP_CH11/14_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 channels 11 to 14 IF amplifier.

A1_IF_AMP_TEMP_COEF_CH9/14 - PRT conversion coefficients a0, a1,

a2, a3 for A1 channels 9 to 14 IF amplifier.

(24 values: 4 coefficients for 6 channels)

A1_INST_STAT_COLD_CAL_LSB - least significant bit of space viewing

position of A1 device occurring in A1 first instrument status word.

Positions can have values 0 to 3.

A1_INST_STAT_COLD_CAL_MODE - cold cal mode flag in A1 first instrument

status word. Value of 1 indicates instrument in cold cal mode.

A1_INST_STAT_COLD_CAL_MSB - most significant bit of space viewing

position of A1 device occurring in A1 first instrument status word.

A1_INST_STAT_FULL_SCAN_MODE - full scan mode flag in A1 first

instrument status word. Value of 1 indicates instrument in full scan mode.

A1_INST_STAT_MODULE_PWR - module power flag in A1 first instrument

status word. Value of 1 indicates module power on.

A1_INST_STAT_NADIR_MODE - nadir mode flag in A1 first instrument

status word. Value of 1 indicates instrument in nadir mode.

A1_INST_STAT_PLLO_PWR - PLLO power flag in A1 first instrument

status word. 1 is primary PLLO; 0 is redundant PLLO.

A1_INST_STAT_SCANNER_A1_1_PWR - A1-1 scanner power flag in A1 first

instrument status word. Value of 1 indicates scanner power on.

A1_INST_STAT_SCANNER_A1_2_PWR - A1-2 scanner power flag in A1 first

instrument status word. Value of 1 indicates scanner power on.

A1_INST_STAT_SURVIVAL_PWR - A1 survival heater power flag in A1 first

instrument status word. Value of 1 indicates heater on.

A1_INST_STAT_WARM_CAL_MODE - A1 warm cal mode flag in A1 first

instrument status word. Value of 1 indicates instrument in warm cal mode.

A1_LOCAL_OSC_TEMP_COEF_CH15 - PRT conversion coefficients a0, a1,

a2, a3 for A1 channel 15 local oscillator.

A1_LOCAL_OSC_TEMP_COEF_CH3/8 - PRT conversion coefficients a0, a1,

a2, a3 for A1 channels 3 to 8 local oscillators.

(24 values: 4 coefficients for 6 channels)

A1_MIXER_IF_AMP_CH15_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 channel 15 mixer IF amplifier.

A1_MIXER_IF_AMP_CH3/8_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 channels 3 to 8 mixer IF amplifiers.

(24 values: 4 coefficients for 6 channels)

A1_MIXER_IF_AMP_CH9/14_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1 channels 9 to 14 IF amplifier.

(24 values: 4 coefficients for 6 channels)

A1_PLLO_1_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1-2 primary PLLO.

A1_PLLO_2_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1-2 redundant PLLO.

A1_PLLO_REF_OSC_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for A1-2 PLLO reference oscillator.

A1_RF_MUX_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for AMSU-A1, A2 RF Mux.

(8 values: 4 coefficients for 2 devices)

A1_RF_SHELF_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for AMSU-A1, A2 RF Shelf.

(8 values: 4 coefficients for 2 devices)

A1_SCAN_MOTOR_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for AMSU-A1, A2 scanner motors.

(8 values: 4 coefficients for 2 devices)

A1_WARM_LOAD_TEMP_COEF - PRT conversion coefficients a0, a1,

a2, a3 for AMSU-A1-1, A1-2 warm load PRTs.

(40 values: 4 coefficients, 5 PRTs, 2 devices)

A2_2ND_STAT_COLD_CAL_LSB - least significant bit of space viewing

position of A2 device occurring in second instrument status word.

Positions can have values 0 to 3.

A2_2ND_STAT_COLD_CAL_MODE - cold cal mode flag in second instrument

status word of A2 device. Value of 1 indicates instrument in cold cal mode.

A2_2ND_STAT_COLD_CAL_MSB - most significant bit of space viewing

position of A1 device occurring in second instrument status

word of A2 device.

A2_2ND_STAT_FULL_SCAN_MODE - full scan mode flag in second instrument

status word of A2 device. Value of 1 indicates instrument in full scan mode.

A2_2ND_STAT_MODULE_PWR - module power flag in second instrument

status word of A2 device. Value of 1 indicates module power on.

A2_2ND_STAT_NADIR_MODE - nadir mode flag in second instrument

status word of A2 device. Value of 1 indicates instrument in nadir mode.

A2_2ND_STAT_SCANNER_PWR - scanner power flag in second

instrument status word of A2 device. Value of 1 indicates scanner power on.

A2_2ND_STAT_SCAN_COMP_PWR - scanner compensator power flag in

second instrument status word of A2 device. Value of 1 indicates compensator

power on.

A2_2ND_STAT_SURVIVAL_PWR - survival heater power flag in second

instrument status word of A2 device. Value of 1 indicates heater power on.

A2_2ND_STAT_WARM_CAL_MODE - warm cal mode flag in second

instrument status word of A2 device. Value of 1 indicates instrument in

warm cal mode.

A2_ANALOG_TELEM_ANT_MOTOR_CUR - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 antenna motor current.

A2_ANALOG_TELEM_COMP_MOTOR_CUR - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 compensator motor current.

A2_ANALOG_TELEM_COMP_MOTOR_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 compensator motor temperature.

A2_ANALOG_TELEM_GDO_VOLTAGE_CH1 - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 channel 1 GDO voltage.

A2_ANALOG_TELEM_GDO_VOLTAGE_CH2 - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 channel 2 GDO voltage.

A2_ANALOG_TELEM_N15V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 -15V antenna drive voltage.

A2_ANALOG_TELEM_N15V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 -15V signal processing voltage.

A2_ANALOG_TELEM_P15V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 +15V antenna drive voltage.

A2_ANALOG_TELEM_P15V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 +15V signal processing voltage.

A2_ANALOG_TELEM_P5V_ANTENNA_DRV - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 +5V antenna drive voltage.

A2_ANALOG_TELEM_P5V_SIGNAL_PROC - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 +5V signal processing voltage.

A2_ANALOG_TELEM_P8V_RECEIVER_AMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 +8V receiver voltage.

A2_ANALOG_TELEM_RF_SHELF_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 RF shelf temperature.

A2_ANALOG_TELEM_SCAN_MOTOR_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 scanner motor temperature.

A2_ANALOG_TELEM_WARM_LOAD_TEMP - analog telemetry conversion

coefficients a0, a1 for AMSU-A2 warm load temperature.

A2_COMPENSATOR_MOTOR_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 compensator motor temperature.

A2_DC/DC_CONVERTER_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 DC/DC converter.

A2_DETECTOR/PREAMP_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 detector/preamp assembly.

A2_FEED_HORN_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 feed horn.

A2_INST_STAT_COLD_CAL_LSB - least significant bit of A2 space view

position (possible values 0 to 3) in A2 first

instrument status word.

A2_INST_STAT_COLD_CAL_MODE - cold cal mode flag in A2 first

instrument status word. Value of 1 indicates instrument in cold cal mode.

A2_INST_STAT_COLD_CAL_MSB - most significant bit of A2 space view

position (possible values 0 to 3) in A2 first

instrument status word.

A2_INST_STAT_FULL_SCAN_MODE - full scan mode flag in A2 first

instrument status word. Value of 1 indicates instrument in full scan mode.

A2_INST_STAT_MODULE_PWR - module power status flag in A2 first

instrument status word. Value of 1 indicates module power on.

A2_INST_STAT_NADIR_MODE - nadir mode flag in A2 first

instrument status word. Value of 1 indicates instrument in nadir mode.

A2_INST_STAT_SCANNER_PWR - scanner power status flag in A2 first

instrument status word. Value of 1 indicates scanner power on.

A2_INST_STAT_SCAN_COMP_PWR - scanner compensator power flag in A2

first instrument status word. Value of 1 indicates compensator power on.

A2_INST_STAT_SURVIVAL_PWR - survival heater power flag in A2

first instrument status word. Value of 1 indicates heater power on.

A2_INST_STAT_WARM_CAL_MODE - warm cal mode flag in A2 first

instrument status word. Value of 1 indicates instrument in warm cal mode.

A2_LOCAL_OSC_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 local oscillator temperature

for channels 1 and 2.

(8 values: 4 coefficients, 2 channels)

A2_MIXER_IF_AMP_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 mixer IF amplifier temperature.

(8 values: 4 coefficients, 2 channels)

A2_RF_MUX_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 RF Mux temperature.

A2_RF_SHELF_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 RF shelf temperature.

A2_SCAN_MOTOR_TEMP_COEFF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 scanner motor temperature.

A2_SUB_REFLECTOR_TEMP_COEF - PRT conversion coefficients

a0, a1, a2, a3 for AMSU-A2 subreflector temperature.

A2_WARM_LOAD_TEMP_COEF - temperature conversion coefficients

a0, a1, a2, a3 for each of 7 AMSU-A2 warm load PRT's.

(28 values: 4 coefficients, 7 PRTs)

ARGUMENT_OF_PERIGEE Argument of Perigee in degrees {note 3}

These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

ATTITUDE_ERROR_CORRECTION Flag indicating whether the dynamic

attitude corrections have been performed. Currently (1995) the

earth location module (AELDS) does not perform these

corrections; the advisability of making these corrections is

under study. 0 --> no corrections; 1 --> the corrections were

performed.

CLOCK_UPDATE_RECORD The first record in this data set showing

the result of an update to the spacecraft's clock. A value of

zero indicates that no update occurred during the course of

this orbit.

COLD_SPACE_FIXED_BIAS_CORR - correction added to cold space

temperature to correct for radiation contamination from spacecraft.

(15 values: 1 coefficient for 15 channels)

COMPLETE_SCAN_COUNT The total number of calibrated and earth

located scans in this data set.

COMPONENT_ID Identifies the type of the file, in the case of a

AMSU-A 1b* data set it should contain the following character

string: AMSUA_1B*_FILE. {note 2}

CPIDS_DOY - day of year of last CPIDS update.

CPIDS_YEAR - year of last CPIDS update.

CREATION_YEAR_DAY The 4-digit year and the day of year, in that

order, that this 1b* data set was created.

DATA_FRAME_COUNT - In the 1b format this is defined as

"Count of Data Frames Without Frame Sync Word Errors".

For AMSU this is currently defined as the number of minor

frames with valid AMSU sync words (i.e. hex F36A in first

16 bits of frame, 0's in next 6 bits). Since the AMSU data

occurs in the AMSU part of the frame, this flag does not

indicate TIP sync word errors.

DATA_GAPS_COUNT The number of separate data gaps of one or more

scans.

DATA_MODE From the PACS Status. 0 --> test data; 1 --> flight

data.

DATA_SOURCE - The CDA station that received the satellite

transmission of this data. 1 --> Gilmore; 2 --> Wallops; 3 -->

SOCC <<?>>.

DATA_TYPE_CODE Indicates the data type of the data set,

10 for AMSU-A.

EARTH/SUN_DISTANCE_RATIO distance from Earth to the sun in

Astronomical units (mean distance is 1AU)

EARTH_LOC_ERROR_CODE If EARTH_LOC_ERROR_RECORD is nonzero, this

field contains the value from EARTH_LOCATION_PROBLEM_INDICATOR

as reported on the scan for which the error was reported.

EARTH_LOC_ERROR_RECORD If an earth location error is detected

during the period covered by this data set, the record number of

the first occurrence is given in this field. If no errors are

detected this field contains 0.

ECCENTRICITY Eccentricity {note 3}

{note 3} These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

END_DAY_OF_YEAR Day-of-year on which the last scan in this data

set occurred.

END_JULIAN_DAY Day count, from 00h, 1 Jan. 1950, of the last

scan in this data set. << Is 1 Jan 1950 day 0 or day 1?>>

<<This is a different definition for Julian day. We (the PDP)

have defined, and are using, Julian day as the number of days

since Jan. 1, 4713 BC.>>

END_MILLISECONDS_OF_DAY Time of day in milliseconds at which

the last scan of this data set began. <<Scan times on data

records will not mark the scan start, but rather the center of

dwell of the first FOV.>>

END_YEAR 4-digit year in which the last scan in this data set

occurred.

FIRST_SCAN_RECORD The record number in this data set of the

first scan.

HEX_AFFFFFFF The hex code AFFFFFF stroed in the natural order of

the target computer.

INCLINATION Inclination in degrees {note 3}

{note 3} These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

INSTRUMENT_ID Code identifying the AMSU_A instrument that

produced the data for this data set. This information comes

from the spacecraft's CPIDS database.

INSTRUMENT_STATUS_A1 The status of the A1 instrument at the

beginning of the period covered by this data set. Status is

determined by digital B telemetry data from the first scan.

INSTRUMENT_STATUS_A2 The status of the A2 instrument at the

beginning of the period covered by this data set. Status is

determined by digital B telemetry data from the first scan.

INSTRUMENT_TEMP_SENSOR_ID - ID of instrument temperature source for each device;

0 = RF Shelf, 1 = RF Mux.

LAST_SCAN_RECORD The record number in this data set of the last

scan.

LETTER_Q The letter Q encoded for the target computer. A 1b*

for the CEMSCS would have the letter Q encoded in EBCDIC;

for the PC it would be encoded in ASCII.

LOCAL_DATA_SET_NAME The name of this 1b* data set on the target

computer.

MEAN_ANOMALY Mean Anomaly in degrees {note 3}

{note 3} These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

MISSING_SCAN_COUNT The difference between the total number of

scans expected during the period of this data set and

SCAN_COUNT.

MORNING_AFTERNOON_INDICATOR Indicates whether the spacecraft

crosses the equater going north in the morning or in the

afternoon. 0 --> morning, 1 --> afternoon.

NADIR_TOLERANCE a value in kilometers that is used to determine

when earth location data at the satellite subpoint are outside

an acceptable range. The "bad earth location" flag tolerance is

exceeded. Generally, the range is set between 0.1 and 25.2

kilometers. Zero indicates no checking is done.

NON_LINEARITY_COEFF - Non-linearty coefficients U0, U1, U2 for each of 15 channels.

These are used to compute calibration coefficients a0, a1, a2.

(45 values: 3 coefficients for 15 channels)

NON_LINEARITY_COEFF_PLLO_2 - Non-linearity coefficients U0, U1, U2 for each

of 6 A1-1 channels 9 - 14; used in the calibration when the redundant PLLO

(#2) power is on.

(18 values: 3 coefficients for 6 channels)

NUMBER_OF_HEADER_RECS The total number of header records in the

1b* data set. NUMBER_OF_HEADER_RES + 1 gives the record number

of the first data record.

ORBIT_VECTOR_DAY_OF_YEAR Day count from the beginning of the

year for the reported orbital elements.

ORBIT_VECTOR_EPOCH_YEAR Four-digit year of the date for the

reported orbital elements.

ORBIT_VECTOR_UTC_TIME_OF_DAY Actual time for which the reported

orbit vector is valid in milliseconds.

ORIGINAL_DATA_SET_NAME The 1A data set name used on the computer

that created this 1b*.

PI The number 3.141459 stored in the floating point format of

the target processor.

PITCH_ERROR_CONSTANT Pitch Euler angle reported in degrees

times 1000 based on instrument misalignment errors or observed

image errors. Positive pitch is down. {note 5}

POSITION_VECTOR_X_COMPONENT Position Vector X Component in

kilometers {note 4}

POSITION_VECTOR_Y_COMPONENT Position Vector Y Component in

kilometers {note 4}

POSITION_VECTOR_Z_COMPONENT Position Vector Z Component in

kilometers {note 4}

PROCESSING_BLOCK<<_ID>> The processing block ID. Seven digits

identifying the starting and ending orbits. The first 5 digits

give the starting orbit; the last two digits are the the last

two digits of the ending orbit. <<See POD, 7/91; pg. 2-4 for

exceptions.>>

PROCESSOR_ID The ID of the computer program that originally

created this 1b*.

PSEUDO_NOISE_FLAG Pseudo noise indicator from the PACS Status

Bit Field. 0 --> normal data; 1 --> P/N data.

REASONABLENESS_TEST_ACTIVE - flag from AELDS common block which

indicates whether AELDS software is performing reasonableness

check of earth location values.

REF_ELLIPSOID_MODEL_ID - ellipsoid model returned by AELDS earth

location processing.

RF_MUX_REF_TEMP - 3 RF Mux reference temperatures (minimum, nominal, maximum) for

each of 3 AMSU-A devices (A1-1, A1-2, A2). These are temperatures corresponding

to 3 values of several temperature-dependent coefficients (e.g. non-linearity,

warm target bias correction).

(9 values: 3 temperatures for each of 3 devices)

RF_MUX_REF_TEMP_PLLO_2 - 3 RF Mux reference temperatures (minimum,

nominal, maximum) for the A1-1 device, and are used when

redundant PLLO (#2) power is on.

RF_SHELF_REF_TEMP - 3 RF Shelf reference temperatures (minimum, nominal, maximum) for

each of 3 AMSU-A devices (A1-1, A1-2, A2). These are temperatures

corresponding to 3 values of several temperature-dependent

coefficients (e.g. non-linearity, warm target bias correction).

(9 values: 3 temperatures for each of 3 devices)

RF_SHELF_REF_TEMP_PLLO_2 - 3 RF Shelf reference temperatures

(minimum, nominal, maximum) for the A1-1 device, and are used

when redundant PLLO (#2) power is on.

RIGHT_ASCENSION Right Ascension of the Ascending Node in

degrees {note 3}

{note 3} These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

ROLL_ERROR_CONSTANT Roll Euler angle reported in degrees times

1000 based on instrument misalignment errors or observed image

errors. Positive roll is to right. {note 5}

SCAN_COUNT The total number of scans represented in this data set.

SECOND_INSTRUMENT_STATUS_A1 An array of A1 indicators giving the

status of the instrument after the first change. If no change

occurs, the indicators are all missing values. >>

SECOND_INSTRUMENT_STATUS_A2 An array of A2 indicators giving the

status of the instrument after the first change. If no change

occurs, the indicators are all missing values. >>

SEMIMAJOR_AXIS Semi-major Axis in kilometers {note 3}

{note 3} These parameters are the satellite Osculating

(instantaneous) Keplerian orbital elements valid for the epoch

time provided (Inertial Reference Frame).

SPACECRAFT_ID NOAA's numerical ID of the spacecraft.

START_DAY_OF_YEAR Day-of-year on which the first scan in this

data set occurred.

START_JULIAN_DAY Day count, from 00h, 1 Jan. 1950, of the first

scan in this data set.

START_MILLISECONDS_OF_DAY Time of day in milliseconds at which

the first scan of this data set began. <<Notice that scan times

on data records will not mark the scan start, but rather the

center of dwell of the first FOV.>>

START_YEAR 4-digit year in which the first scan in this data

set occurred.

STATUS_CHANGE_SCAN_A1 - If the INSTRUMENT_STATUS_A1 changes during

the period covered by this data set, the record number at which

the change is first recognized is given in this field. If no

change occurs this field will contain 0.

STATUS_CHANGE_SCAN_A2 - If the INSTRUMENT_STATUS_A2 changes during

the period covered by this data set, the record number at which

the change is first recognized is given in this field. If no

change occurs this field will contain 0.

SYNC_ERROR_COUNT The sum of all (PACS-detected) auxiliary sync

errors detected in the input data for the entire data set; i.e.,

the PDP extracts the number of frame sync bit errors from the

frame quality flags in the 1a (see 1a requirements Table 2.3-4)

and accumulates the sum over the period covered by the data set.

TAPE_DIRECTION 0 --> time decrementing. << Who cares? The

1b*/1b will always be in increasing order.>>

TIME_SEQUENCE_ERROR_CODE If TIME_SEQUENCE_ERROR_RECORD is

nonzero, this indicator array contains the values reported in

TIME_PROBLEM_INDICATOR on the data record having the problem.

TIME_SEQUENCE_ERROR_RECORD If the pattern of scan times changes

during the period covered by this data set, the first record

showing the new pattern is given in this field. If the pattern

remains consistent throughout, this field is 0. This is

determined by the PDP, and the first record that shows either

condition 3 or 4<<4 is now spare>> in the TIME_PROBLEM_INDICATOR

will have its number placed in this field.<<Should this

definition be expanded to include all time errors (i.e., check

conditions 1 and 2 as well), and not just when there is a change

in the scan time pattern (i.e., a time discontinuity)?>>

TIP_PARITY_ERROR_COUNT The count of the total number of

PACS-detected TIP parity errors. The PDP finds the number of

TIP parity errors that were detected (by PACS) on each scan and

accumlates the sum over all the scans covered by the data set.

TIP_SOURCE_CODE Meaningless for this data set. The value will

be set to 0.

TRANSLATOR_ID The ID of the computer program that translated

this 1b* from some other format (e.g., 1b) or ported it from

some other computer (e.g., CEMSCS to Cray).

T_R_CENTRAL_WAVE_NUMBER An array containing the central wave

numbers of the 15 AMSU-A channels.

(15 values: 1 coefficients for 15 channels)

T_R_CONVERSION_CONSTANT_1 - Band correction coefficient b defined for

each of 15 AMSU-A channels. Used to correct temperature of warm load for

device corresponding to channel number.

(15 values: 1 coefficients for 15 channels)

T_R_CONVERSION_CONSTANT_2 - Band correction coefficient c defined for

each of 15 AMSU-A channels. Used to correct temperature of warm load for

device corresponding to channel number.

(15 values: 1 coefficients for 15 channels)

VELOCITY_VECTOR_X_DOT_COMPONENT Velocity Vector X-dot Component

in kilometers/second {note 4}

VELOCITY_VECTOR_Y_DOT_COMPONENT Velocity Vector Y-dot Component

in kilometers/second {note 4}

VELOCITY_VECTOR_Z_DOT_COMPONENT Velocity Vector Z-dot Component

in kilometers/second {note 4}

VERSION_NUMBER Integer giving the version number of the

structure file used to create this 1b* data set.

WARM_TAR_BIAS_CORR_C9/14 - Warm target temperature correction factor

defined for 3 reference temperatures for channels 9 through 14.

This is used when the redundant PLLO (#2)

is powered on.

(18 values: 3 coefficients for 6 channels)

WARM_TAR_FIX_BIAS_CORR - Warm target temperature

correction factor defined at 3 reference temperatures for each

channel.

(45 values: 3 coefficients for 15 channels)

YAW_ERROR_CONSTANT Yaw Euler angle reported in degrees times

1000 based on instrument misalignment errors or observed image

errors. Positive yaw is clockwise as viewed from above. {note 5}