| id | field name | definition |
|---|
| 0 | no_valid |
| binary uint8 | size: 1 |
|---|
|
No valid data flag. 0 = valid data was found in the Level 0 product; 1 = no valid packets in the Level 0 product.
|
|
| 1 | no_int_stray |
| binary uint8 | size: 1 |
|---|
|
Internal straylight correction flag. 1 = internal straylight correction was not performed; 0 = internal straylight correction was performed.
|
|
| 2 | no_ext_earth |
| binary uint8 | size: 1 |
|---|
|
External earth straylight correction flag. 1 = external earth straylight correction was not performed; 0 = otherwise.
|
|
| 3 | no_ext_sun |
| binary uint8 | size: 1 |
|---|
|
External sun straylight correction flag. 1 = external sun straylight correction was not performed; 0 = otherwise.
|
|
| 4 | no_slit_trans |
| binary uint8 | size: 1 |
|---|
|
Slit transmission correction flag. 1 = slit transmission correction was not performed; 0 = otherwise.
|
|
| 5 | no_ref_star_comp |
| binary uint8 | size: 1 |
|---|
|
PCD flag for reference star spectrum computation. 1 = the reference star spectrum was computed with a small number of measurements; 0 = otherwise.
|
|
| 6 | ref_star_db |
| binary uint8 | size: 1 |
|---|
|
PCD flag indicating that the star spectrum has been read from the stellar spectra database. 1 = the reference spectrum is read in the database; 0 = the reference spectrum is computed from the measurements.
|
|
| 7 | no_ref_star |
| binary uint8 | size: 1 |
|---|
|
PCD flag indicating that the reference star spectrum has not been computed. 1 = the reference star spectrum has not been computed; 0 = the reference star spectrum was computed.
|
|
| 8 | satu_flag |
| binary uint8 | size: 1 |
|---|
|
PCD flag indicating that the SATU data have been used for flat field correction. 1 = the SATU data are used; 0 = the SATU data are not used.
|
|
| 9 | dark_charge_flag |
| binary uint8 | size: 1 |
|---|
|
PCD flag for the dark charge computation (photometers). 1 = no DC correction performed; 0 = DC correction performed.
|
|
| 10 | spare_1 |
| binary bytes | size: 8 |
|---|
|
Spare
|
hidden: true
|
| 11 | num_sp_err |
| binary uint32 | size: 4 |
|---|
|
Number of source packets containing errors
|
|
| 12 | lev0_id |
| binary uint8 | size: 1 |
|---|
|
Level 0 PCD. 0 = Standard occultation; 1 = first part of a tangent occultation; 2 = last part of a tangent occultation.
|
|
| 13 | atm_type |
| binary uint8 | size: 1 |
|---|
|
Type of atmosphere file used. 50 = ECMWF file used; 100 = ECMWF file not up-to-date; 200 = MSIS90 used; other = no convergence in the iterative process.
|
|
| 14 | dark_charge_info |
| binary uint8 | size: 1 |
|---|
|
Dark Charge correction information. 0 = dark charge map used; 1 = first measurements used; 2 = no dark charge correction applied; 11 = first measurements not available - no DC corrections applied; 12 = first measurements not available and missing first packet - DC correction with DC maps without temperature dependence.
|
|
| 15 | limb_flag |
| binary uint8 | size: 1 |
|---|
|
Dark/bright limb condition.
|
|
| 16 | sdp_extract |
| binary uint32 | size: 4 |
|---|
|
SDP extraction processing. Number of invalid measurements during the occultation. This value will be equal to the number of Transmission MDSRs with their quality flag set to -1 plus the number of missing source packets which were found.
|
|
| 17 | dat_err |
| binary uint32 | size: 4 |
|---|
|
Datation errors. Number of measurements where flags were raised to indicate a datation problem occurred.
|
|
| 18 | rt_err |
| binary uint32 | size: 4 |
|---|
|
Ray Tracing errors. Number of measurements with a non-converged ray path.
|
|
| 19 | geo_err |
| binary uint32 | size: 4 |
|---|
|
Geolocation errors. Number of measurements performed outside the atmosphere, set to 1000 if completely performed outside the atmosphere.
|
|
| 20 | sat_err |
| binary uint32 | size: 4 |
|---|
|
Saturation errors. Number of measurements containing saturated samples.
|
|
| 21 | cr_err |
| binary uint32 | size: 4 |
|---|
|
Cosmic ray errors. Number of measurements where cosmic rays have been detected.
|
|
| 22 | vign_err |
| binary uint32 | size: 4 |
|---|
|
Vignetting correction. Number of measurements where the vignetting correction was applied.
|
|
| 23 | num_cent_back |
| binary uint32 | size: 4 |
|---|
|
Central Background. Number of measurements where FLAG[bg](f) has been raised.
|
|
| 24 | num_flat |
| binary uint32 | size: 4 |
|---|
|
Flat field correction. Number of measurements where the star falls outside the central band.
|
|
| 25 | num_full_trans_err |
| binary uint32 | size: 4 |
|---|
|
Full transmission errors. Number of measurements where a problem has been detected during the full transmission computation.
|
|
| 26 | num_bad |
| binary uint32 | size: 4 |
|---|
|
Bad pixels. Number of bad pixels per measurement.
|
|
| 27 | num_fp_sat |
| binary array[2] | size: 8 |
|---|
Photometer saturation. Number of photometers saturated samples. First number is for photometer 1 second is for photometer 2.
|
|
| 28 | spare_2 |
| binary bytes | size: 32 |
|---|
|
Spare
|
hidden: true
|
| 29 | lev_1b_check |
| binary uint16 | size: 2 |
|---|
|
Level 1B PCD check. 0 = no unrecoverable errors detected in Level 1B PCD; 1 = no valid data; 2 = second part of a tangent occultation; 3 = geolocation is not valid; 4 = reference star spectra is missing.
|
|
| 30 | nfcr |
| binary uint16 | size: 2 |
|---|
|
Chromatic refraction mode for the measured transmission. 0 = no correction; 1 = correction is performed.
|
|
| 31 | nfcr20 |
| binary uint16 | size: 2 |
|---|
|
Chromatic refraction mode for transmission model (second spectral inversion). 0 = no correction; 1 = correction is performed.
|
|
| 32 | nfcr21 |
| binary uint16 | size: 2 |
|---|
|
Chromatic refraction mode for transmission model (third and further spectral inversions). 0 = no correction; 1 = correction is performed.
|
|
| 33 | nfi0 |
| binary uint16 | size: 2 |
|---|
|
Instrument function mode for transmission model (second spectral inversion). 0 = no correction; 1 = correction is performed.
|
|
| 34 | nfi1 |
| binary uint16 | size: 2 |
|---|
|
Instrument function mode for transmission model (third and further spectral inversions). 0 = no correction; 1 = correction is performed.
|
|
| 35 | nfv |
| binary uint16 | size: 2 |
|---|
|
Vertical inversion mode. 0 = onion peeling; 1 = cubic spline approximation.
|
|
| 36 | nfs |
| binary uint16 | size: 2 |
|---|
|
Smoothing mode (after the spectral inversion). 0 = no smoothing; 1 = cubic spline smoothing.
|
|
| 37 | nft0 |
| binary uint16 | size: 2 |
|---|
|
Time mode for transmission model (second spectral inversion). 0 = zero order term; 1 = second order term.
|
|
| 38 | nft1 |
| binary uint16 | size: 2 |
|---|
|
Time mode for transmission model (third and further spectral inversions). 0 = zero order term; 1 = second order term.
|
|
| 39 | num_iter_main |
| binary uint16 | size: 2 |
|---|
|
Number of iterations for main loop
|
|
| 40 | num_iter_inv |
| binary uint16 | size: 2 |
|---|
|
Number of iterations for inversion loop
|
|
| 41 | spare_3 |
| binary bytes | size: 2 |
|---|
|
Spare
|
hidden: true
|
| 42 | num_prof_points |
| binary uint16 | size: 2 |
|---|
|
Number of points in profile column densities where Chi^2 > Chi^2 (warn)
|
|
| 43 | num_air_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for air column densities
|
|
| 44 | num_aero_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for aerosol column densities
|
|
| 45 | num_o3_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for O3 column densities
|
|
| 46 | num_no2_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for NO2 column densities
|
|
| 47 | num_no3_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for NO3 column densities
|
|
| 48 | num_oclo_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for OClO column densities
|
|
| 49 | num_o2_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for O2 column densities
|
|
| 50 | num_h2o_col_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for H2O column densities
|
|
| 51 | spare_4 |
| binary bytes | size: 10 |
|---|
|
spare
|
hidden: true
|
| 52 | num_air_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for air local densities
|
|
| 53 | num_aero_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for aerosol local densities
|
|
| 54 | num_o3_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for O3 local densities
|
|
| 55 | num_no2_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for NO2 local densities
|
|
| 56 | num_no3_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for NO3 local densities
|
|
| 57 | num_oclo_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for OClO local densities
|
|
| 58 | num_o2_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for O2 local densities
|
|
| 59 | num_h2o_loc_flags |
| binary uint16 | size: 2 |
|---|
|
Number of flagged points in profile for H2O local densities
|
|
| 60 | spare_5 |
| binary bytes | size: 10 |
|---|
|
Spare
|
hidden: true
|
| 61 | layer_ratio |
| binary uint16 (double) | size: 2 |
|---|
Layer ratio used in vertical inversion
unit: "1e3"
converted unit: "" (multiply by 1/1000)
|
|
| 62 | spare_6 |
| binary bytes | size: 2 |
|---|
|
Spare
|
hidden: true
|
| 63 | spare_7 |
| binary bytes | size: 64 |
|---|
|
Spare
|
hidden: true
|