| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Start time of calibration data acquisition (ZPD time of first sweep used for gain calibration)
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 | samp_time |
| ascii time | size: 27 |
|---|
Sampling 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".
|
|
|
| 3 | nom_laser_freq |
| binary double | size: 8 |
|---|
Nominal laser wavenumber. Nominal set of modeling ILS parameters.
unit: "1/cm"
|
|
| 4 | spare_1 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 5 | axis_time |
| ascii time | size: 27 |
|---|
Axis 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".
|
|
|
| 6 | num_points_per_band |
| binary array[5] | size: 20 |
|---|
Number of points per band. Band sequence is A, AB, B, C, D.
|
|
| 7 | first_wavenum |
| binary array[5] | size: 40 |
|---|
Wavenumber of first point in band. Band sequence is A, AB, B, C, D.
| binary double | size: 8 |
|---|
|
unit: "1/cm"
|
|
|
| 8 | last_wavenum |
| binary array[5] | size: 40 |
|---|
Wavenumber of last point in band. Band sequence is A, AB, B, C, D.
| binary double | size: 8 |
|---|
|
unit: "1/cm"
|
|
|
| 9 | spare_2 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 10 | fce_time |
| ascii time | size: 27 |
|---|
FCE 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".
|
|
|
| 11 | spare_3 |
| binary bytes | size: 4 |
|---|
|
Spare
|
hidden: true
|
| 12 | num_points |
| binary array[2] | size: 8 |
|---|
Number of points around ZPD band AB and B
|
|
| 13 | spare_4 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 14 | nesr_time |
| ascii time | size: 27 |
|---|
NESR 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".
|
|
|
| 15 | nesr_std_dev_thresh |
| binary double | size: 8 |
|---|
|
Standard deviation threshold
|
|
| 16 | nesr_thresh_rej |
| binary double | size: 8 |
|---|
Threshold of rejection (given as ratio, e.g. 0.05 means 5%).
unit: "%"
|
|
| 17 | nesr_reduc_factor |
| binary uint16 | size: 2 |
|---|
|
Template reduction factor
|
|
| 18 | spare_5 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 19 | rad_time |
| ascii time | size: 27 |
|---|
Radiometric 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".
|
|
|
| 20 | rad_std_dev_thresh |
| binary double | size: 8 |
|---|
|
Standard deviation threshold
|
|
| 21 | rad_rej_thresh |
| binary double | size: 8 |
|---|
Threshold of rejection (given as ratio, e.g. 0.05 means 5%).
unit: "%"
|
|
| 22 | rad_reduc_factor |
| binary uint16 | size: 2 |
|---|
|
Template reduction factor
|
|
| 23 | spare_6 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 24 | quality_time |
| ascii time | size: 27 |
|---|
Quality 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".
|
|
|
| 25 | qual_std_dev_thresh |
| binary double | size: 8 |
|---|
|
Standard deviation threshold.
|
|
| 26 | qual_rej_thresh |
| binary double | size: 8 |
|---|
Threshold of rejection (given as ratio, e.g. 0.05 means 5%).
unit: "%"
|
|
| 27 | qual_reduc_factor |
| binary uint16 | size: 2 |
|---|
|
Template reduction factor
|
|
| 28 | spare_7 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 29 | spike_time |
| ascii time | size: 27 |
|---|
Spike 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".
|
|
|
| 30 | num_per_block |
| binary uint32 | size: 4 |
|---|
|
Number of points per block
|
|
| 31 | spike_std_dev_thresh |
| binary double | size: 8 |
|---|
|
Standard deviation threshold
|
|
| 32 | spare_8 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 33 | sinc_time |
| ascii time | size: 27 |
|---|
Sinc 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".
|
|
|
| 34 | sinc_num_rows |
| binary uint32 | size: 4 |
|---|
|
Number of rows (N)
|
|
| 35 | sinc_num_cols |
| binary uint32 | size: 4 |
|---|
|
Number of columns (J)
|
|
| 36 | sinc_coef |
| binary array[dim_0, dim_1] |
|---|
Interpolation coefficients
dim_0: int(../sinc_num_cols)
dim_1: int(../sinc_num_rows)
|
|
| 37 | spare_9 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 38 | spec_time |
| ascii time | size: 27 |
|---|
Spectral 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".
|
|
|
| 39 | spec_asc_node_time |
| binary double | size: 8 |
|---|
Time since ascending node crossing from which the search for the first valid scene data shall start
unit: "s"
|
|
| 40 | spec_update_period |
| binary uint16 | size: 2 |
|---|
|
Update period (expressed in nominal scans, i.e. ignore scans in special event mode)
|
|
| 41 | spec_tan_ht_intv |
| binary array[2] | size: 8 |
|---|
Tangent height interval within which scene data shall be extracted
| binary float | size: 4 |
|---|
|
unit: "km"
|
|
|
| 42 | spec_scene_coadd |
| binary uint16 | size: 2 |
|---|
|
Number of scenes to be co-added
|
|
| 43 | spec_simplex_conv_tol |
| binary double | size: 8 |
|---|
|
Simplex convergence tolerance
|
|
| 44 | spec_max_iter |
| binary uint32 | size: 4 |
|---|
|
Maximum number of iterations
|
|
| 45 | spec_valid_thresh |
| binary double | size: 8 |
|---|
|
Validity threshold for standard deviation
|
|
| 46 | cal_method |
| binary uint8 | size: 1 |
|---|
|
Calibration Method (0 = peak find method, 1 = cross correlation method)
|
|
| 47 | spare_10 |
| binary bytes | size: 29 |
|---|
|
Spare
|
hidden: true
|
| 48 | ils_time |
| ascii time | size: 27 |
|---|
ILS 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".
|
|
|
| 49 | ils_asc_node_time |
| binary double | size: 8 |
|---|
Time since ascending node crossing from which the search for the valid scene data shall start
unit: "s"
|
|
| 50 | ils_tan_ht_intv |
| binary array[2] | size: 8 |
|---|
Tangent height interval within which scene data shall be extracted
| binary float | size: 4 |
|---|
|
unit: "km"
|
|
|
| 51 | ils_max_scene_coadd |
| binary uint16 | size: 2 |
|---|
|
Maximum number of scenes to be co-added
|
|
| 52 | ils_max_subseq_scan |
| binary uint16 | size: 2 |
|---|
|
Maximum number of subsequent scans from which scenes are to be extracted (expressed in nominal scans, i.e. ignore scans in special event mode)
|
|
| 53 | ils_simplex_conv_tol |
| binary double | size: 8 |
|---|
|
Simplex convergence tolerance
|
|
| 54 | ils_max_iter |
| binary uint32 | size: 4 |
|---|
|
Maximum number of iterations
|
|
| 55 | init_guess_para |
| binary array[2] | size: 8 |
|---|
Initial guess parameters for height and offset (initial search value for ILS retrieval by simplex method)
| binary float | size: 4 |
|---|
|
unit: "km"
|
|
|
| 56 | max_opd |
| binary float | size: 4 |
|---|
Maximum optical path difference
unit: "cm"
|
|
| 57 | shear_y |
| binary float | size: 4 |
|---|
Shear at ZPD along Y
unit: "cm"
|
|
| 58 | shear_z |
| binary float | size: 4 |
|---|
Shear at ZPD along Z
unit: "cm"
|
|
| 59 | mis_y |
| binary float | size: 4 |
|---|
Systematic IR misalignment along Y (initial search value for ILS retrieval by simplex method)
unit: "rad"
|
|
| 60 | mis_z |
| binary float | size: 4 |
|---|
Systematic IR misalignment along Z
unit: "rad"
|
|
| 61 | interfer_div_y |
| binary float | size: 4 |
|---|
Interferometer divergence (total angle) along Y
unit: "rad"
|
|
| 62 | interfer_div_z |
| binary float | size: 4 |
|---|
Interferometer divergence (total angle) along Z
unit: "rad"
|
|
| 63 | laser_mis_y |
| binary float | size: 4 |
|---|
Systematic laser misalignment along Y
unit: "rad"
|
|
| 64 | laser_mis_z |
| binary float | size: 4 |
|---|
Systematic laser misalignment along Z
unit: "rad"
|
|
| 65 | num_subdiv_y |
| binary uint32 | size: 4 |
|---|
|
Number of field of view subdivisions along Y
|
|
| 66 | num_subdiv_z |
| binary uint32 | size: 4 |
|---|
|
Number of field of view subdivisions along Z
|
|
| 67 | spare_11 |
| binary bytes | size: 4 |
|---|
|
Spare
|
hidden: true
|
| 68 | blur_width_y |
| binary float | size: 4 |
|---|
Blur angular width along Y
unit: "rad"
|
|
| 69 | blur_width_z |
| binary float | size: 4 |
|---|
Blur angular width along Z
unit: "rad"
|
|
| 70 | nomi_opt_speed |
| binary float | size: 4 |
|---|
Nominal optical speed
unit: "cm/s"
|
|
| 71 | init_pert |
| binary float | size: 4 |
|---|
Sampling perturbation first sample
unit: "cm"
|
|
| 72 | init_pert_time_const |
| binary float | size: 4 |
|---|
Time constant for attenuation of sampling perturbation
unit: "s"
|
|
| 73 | init_rel_speed_fluc |
| binary float | size: 4 |
|---|
|
Relative speed fluctuation on the first sample
|
|
| 74 | init_rel_speed_fluc_time_const |
| binary float | size: 4 |
|---|
Time constant for attenuation of speed fluctuation
unit: "s"
|
|
| 75 | gain_slope |
| binary float | size: 4 |
|---|
|
Slope of relative gain vs. relative frequency
|
|
| 76 | mismatch_delay |
| binary float | size: 4 |
|---|
Delay mismatch between IR electrical response and ADC trigger signal
unit: "s"
|
|
| 77 | relative_drift |
| binary float | size: 4 |
|---|
Relative drift rate of laser wavenumber per second
unit: "1/s"
|
|
| 78 | noise_bw |
| binary float | size: 4 |
|---|
Laser bandwidth due to white frequency noise
unit: "Hz"
|
|
| 79 | lin_shear_y |
| binary float | size: 4 |
|---|
|
Linear shear variation along Y
|
|
| 80 | lin_shear_z |
| binary float | size: 4 |
|---|
|
Linear shear variation along Z
|
|
| 81 | spare_12 |
| binary bytes | size: 42 |
|---|
|
Spare
|
hidden: true
|
| 82 | los_time |
| ascii time | size: 27 |
|---|
LOS 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".
|
|
|
| 83 | min_azi_angle_side |
| binary double | size: 8 |
|---|
|
Minimum azimuth angle in side observation geometry
|
|
| 84 | max_azi_angle_side |
| binary double | size: 8 |
|---|
|
Maximum azimuth angle in side observation geometry
|
|
| 85 | spare_13 |
| binary bytes | size: 56 |
|---|
|
Spare
|
hidden: true
|
| 86 | min_azi_angle_rear |
| binary double | size: 8 |
|---|
|
Minimum azimuth angle in rearward observation geometry
|
|
| 87 | max_azi_angle_rear |
| binary double | size: 8 |
|---|
|
Maximum azimuth angle in rearward observation geometry
|
|
| 88 | spare_14 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|
| 89 | alt_orb_def |
| binary array[3] | size: 24 |
|---|
Altitude and orbit control system defaults - pitch, roll, and yaw
| binary double | size: 8 |
|---|
|
unit: "degrees"
|
|
|
| 90 | alt_orb_mis_angle |
| binary array[3] | size: 24 |
|---|
Altitude and orbit control system mispointing angle - pitch, roll, and yaw
| binary double | size: 8 |
|---|
|
unit: "degrees"
|
|
|
| 91 | alt_orb_mis_rate |
| binary array[3] | size: 24 |
|---|
Altitude and orbit control system mispointing rate - pitch, roll, and yaw
| binary double | size: 8 |
|---|
|
unit: "degrees/s"
|
|
|
| 92 | targ_mode |
| binary int16 | size: 2 |
|---|
|
TARGET mode
|
|
| 93 | targ_ray |
| binary uint16 | size: 2 |
|---|
|
TARGET ray tracing mode switch
|
|
| 94 | targ_ext |
| binary uint16 | size: 2 |
|---|
|
TARGET extended results vector switch
|
|
| 95 | spare_15 |
| binary bytes | size: 50 |
|---|
|
Spare
|
hidden: true
|