| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Creation Time
unit: "s since 2000-01-01"
value: float(./days) * 86400 + float(./seconds) + float(./microseconds) / 1000000
| binary record | size: 12 |
|---|
ENVISAT binary datetime
| id | field name | definition |
|---|
| 0 | days |
| binary int32 | size: 4 |
|---|
days since January 1st, 2000 (may be negative)
unit: "days since 2000-01-01"
|
|
| 1 | seconds |
| binary uint32 | size: 4 |
|---|
seconds since start of day
unit: "s"
|
|
| 2 | microseconds |
| binary uint32 | size: 4 |
|---|
microseconds since start of second
unit: "1e-6 s"
|
|
|
|
|
| 1 | quality_flag |
| binary int8 | size: 1 |
|---|
|
Quality indicator (PCD) 0 = non-corrupted, -1 = corrupted, default values filled in.
|
|
| 2 | therm_time |
| ascii time | size: 27 |
|---|
Thermistor time (UTC). Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 3 | feo_coef |
| binary array[6] | size: 48 |
|---|
FEO. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 4 | inst_coef |
| binary array[6] | size: 48 |
|---|
Instrument. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 5 | cbe_coef |
| binary array[6] | size: 48 |
|---|
CBE. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 6 | dpu_1_coef |
| binary array[6] | size: 48 |
|---|
DPU/DTU range 1. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 7 | dpu_2_coef |
| binary array[6] | size: 48 |
|---|
DPU/DTU range 2. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 8 | spe_coef |
| binary array[6] | size: 48 |
|---|
SPE. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/(ADC count), K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 9 | paw_coef |
| binary array[6] | size: 48 |
|---|
PAW. A fifth order polynomial relates each thermistor (or a set of) reading (ADC count) to the actual temperature (Kelvin) which leads to a set of 6 coefficients. The units of coefficients are K, K/ADC count, K/(ADC count)^2, K/(ADC count)^3, K/(ADC count)^4, K/(ADC count)^5.
|
|
| 10 | spare_1 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 11 | nonlin_time |
| ascii time | size: 27 |
|---|
Non-linearity time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 12 | detector_coef |
| binary array[4, 4, 2] | size: 256 |
|---|
Detector responsivity coefficients with ASCM approach (relates responsivity to a 'digitized' incident flux). A third order polynomial (4 values from zero order term to third order term) relates detectors (A1, A2, B1 and B2 respectively) responsivity to a 'digitized' incident flux which leads to a set of 4 coefficients. There is a different set of coefficients for the Forward and the Reverse direction for each detector A1, A2, B1 and B2.
|
|
| 13 | photon_flux_min |
| binary array[4] | size: 32 |
|---|
Photon flux min associated with the fit coefficients
|
|
| 14 | photon_flux_max |
| binary array[4] | size: 32 |
|---|
Photon flux max associated with the fit coefficients
|
|
| 15 | spare_2 |
| binary bytes | size: 32 |
|---|
|
Spare
|
hidden: true
|
| 16 | spare_3 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 17 | equal_time |
| ascii time | size: 27 |
|---|
Equalization time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 18 | output_port |
| binary uint8 | size: 1 |
|---|
|
Output port to equalize channel A. 0 = no equalization, 1 = channel A1 and 2 = channel A2.
|
|
| 19 | num_coef |
| binary uint16 | size: 2 |
|---|
|
Number of coefficients (N=32 TBD; actually 16?). The number of coefficients is expected to be between 2 and 32, may be set to zero if field #(16? 17?) is zero.
|
|
| 20 | coef |
| binary array[dim_0] |
|---|
Complex coefficients
dim_0: int(../num_coef)
| binary complex | size: 16 |
|---|
| binary record | size: 16 |
|---|
| id | field name | definition |
|---|
| 0 | real |
|
| 1 | imaginary |
|
|
|
|
|
| 21 | spare_4 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 22 | bb_time |
| ascii time | size: 27 |
|---|
Blackbody time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 23 | corr_factor |
| binary double | size: 8 |
|---|
|
Correction factors (size TBD)
|
|
| 24 | element_loc |
| binary array[8] | size: 64 |
|---|
Base area element locations
| binary double | size: 8 |
|---|
|
unit: "m"
|
|
|
| 25 | prt_loc |
| binary array[3] | size: 24 |
|---|
Base area PRT locations
| binary double | size: 8 |
|---|
|
unit: "m"
|
|
|
| 26 | view_factor |
| binary array[3] | size: 24 |
|---|
View factors
|
|
| 27 | emis_star_freq |
| binary float | size: 4 |
|---|
Start wavenumber of grid on which surface emissivity data are represented
unit: "1/cm1"
|
|
| 28 | emis_step |
| binary float | size: 4 |
|---|
Wavenumber increment of grid on which surface emissivity data are represented
unit: "1/cm1"
|
|
| 29 | emis_num |
| binary uint16 | size: 2 |
|---|
|
Number of data points in grid for surface emissivity (G)
|
|
| 30 | surf_emiss |
| binary array[dim_0] |
|---|
Surface emissivity vs wavenumber
dim_0: int(../emis_num)
|
|
| 31 | start_freq_grid |
| binary float | size: 4 |
|---|
Start wavenumber of grid on which effective emissivity data are represented
unit: "1/cm1"
|
|
| 32 | freq_inc_grid |
| binary float | size: 4 |
|---|
Wavenumber increment of grid on which effective emissivity data are represented
unit: "1/cm1"
|
|
| 33 | num_data_pt_grid |
| binary uint16 | size: 2 |
|---|
|
Number of data points in grid for effective emissivity (H)
|
|
| 34 | eff_emiss |
| binary array[dim_0] |
|---|
Effective emissivity vs. wavenumber
dim_0: int(../num_data_pt_grid)
|
|
| 35 | prt_res |
| binary array[10] | size: 80 |
|---|
PRT resistance values (high and; low)
|
|
| 36 | dig_prt_coef |
| binary array[15] | size: 120 |
|---|
Digital to PRT resistance. A second order polynomial relates digital reading (from the 5 CBB PRT) to resistance values which leads to a set of 3 coefficients. The units of the coefficients are Ohm, Ohm/ADC count, Ohm/(ADC count)^2.
|
|
| 37 | prt_temp_coef |
| binary array[15] | size: 120 |
|---|
PRT resistance to temperature. A second order polynomial relates PRT resistance values to actual temperature (Kelvin) which leads to a set of 3 coefficients. The units of coefficients are K, K/Ohm, K/Ohm^2.
|
|
| 38 | spare_5 |
| binary bytes | size: 30 |
|---|
|
Spare
|
hidden: true
|
| 39 | dtu_time |
| ascii time | size: 27 |
|---|
DTU time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 40 | detector_coef_vs_temp |
| binary array[32] | size: 256 |
|---|
Detector responsivity vs temperature. A third order polynomial relates detector (for all 8) responsivity to DTU temperature which leads to a set of 4 coefficients. The units of coefficients are no units, 1/K, 1/K^2, 1/K^3.
|
|
| 41 | temp_scale_fact |
| binary double | size: 8 |
|---|
|
Responsivity scaling factor
|
|
| 42 | spare_6 |
| binary bytes | size: 42 |
|---|
|
Spare
|
hidden: true
|
| 43 | spe_time |
| ascii time | size: 27 |
|---|
SPE time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 44 | spe_gain |
| binary array[12, 5, 8] | size: 3840 |
|---|
Gain vs temperature and frequency.
|
|
| 45 | spe_phase |
| binary array[12, 5, 8] | size: 3840 |
|---|
Phase vs. temperature and frequency.
|
|
| 46 | spare_7 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 47 | paw_time |
| ascii time | size: 27 |
|---|
PAW time. Last modification time of file section
unit: "s since 2000-01-01"
value: if(str(., 27) == " ", nan, time(str(.), "dd-MMM-yyyy HH:mm:ss.SSSSSS"))
| ascii string | size: 27 |
|---|
|
ENVISAT ASCII datetime "DD-MMM-YYYY hh:mm:ss.uuuuuu".
|
|
|
| 48 | paw_gain_setting |
| binary array[8, 8] | size: 512 |
|---|
Gain vs. setting.
|
|
| 49 | paw_gain_temp |
| binary array[5, 2] | size: 80 |
|---|
Gain vs. temperature.
|
|
| 50 | azi_offset |
| binary double | size: 8 |
|---|
Azimuth offset
unit: "degrees"
|
|
| 51 | spare_8 |
| binary bytes | size: 42 |
|---|
|
Spare
|
hidden: true
|