| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Start time of the DSR
unit: "s since 2000-01-01"
| 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 | attach_flag |
| binary uint8 | size: 1 |
|---|
|
Attachment flag (set to 1 if there are no Transmission MDSRs or SATU MDSRs corresponding to this ADSR, set to zero otherwise)
|
|
| 2 | lat |
| binary array[2] | size: 8 |
|---|
Latitude of the spacecraft. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_north"
converted unit: "degrees_north" (multiply by 1/1e+06)
|
|
|
| 3 | longit |
| binary array[2] | size: 8 |
|---|
Longitude of the spacecraft. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_east"
converted unit: "degrees_east" (multiply by 1/1e+06)
|
|
|
| 4 | alt |
| binary array[2] | size: 8 |
|---|
Altitude of the spacecraft. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary uint32 (double) | size: 4 |
|---|
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|
|
| 5 | tangent_lat |
| binary array[2] | size: 8 |
|---|
Latitude of the tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_north"
converted unit: "degrees_north" (multiply by 1/1e+06)
|
|
|
| 6 | tangent_long |
| binary array[2] | size: 8 |
|---|
Longitude of the tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_east"
converted unit: "degrees_east" (multiply by 1/1e+06)
|
|
|
| 7 | tangent_alt |
| binary array[2] | size: 8 |
|---|
Altitude of the tangent point 2. values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary uint32 (double) | size: 4 |
|---|
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|
|
| 8 | err_tangent_lat |
| binary array[2] | size: 8 |
|---|
Error on the latitude of the tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-7 degrees_north"
converted unit: "degrees_north" (multiply by 1/1e+07)
|
|
|
| 9 | err_tangent_long |
| binary array[2] | size: 8 |
|---|
Error on the longitude of the tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-7 degrees_east"
converted unit: "degrees_east" (multiply by 1/1e+07)
|
|
|
| 10 | err_tangent_alt |
| binary array[2] | size: 8 |
|---|
Error on the altitude of the tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary uint32 (double) | size: 4 |
|---|
unit: "1e-3 m"
converted unit: "m" (multiply by 1/1000)
|
|
|
| 11 | distance |
| binary array[2] | size: 8 |
|---|
Distance spacecraft - tangent point. 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary uint32 (double) | size: 4 |
|---|
unit: "1e-1 m"
converted unit: "m" (multiply by 1/10)
|
|
|
| 12 | azi_dir |
| binary int32 (double) | size: 4 |
|---|
Instrument pointing direction (azimuth) provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
unit: "1e-6 degrees"
converted unit: "degrees" (multiply by 1/1e+06)
|
|
| 13 | ele_dir |
| binary int32 (double) | size: 4 |
|---|
Instrument pointing direction (elevation) provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
unit: "1e-6 degrees"
converted unit: "degrees" (multiply by 1/1e+06)
|
|
| 14 | star_direct |
| binary array[6] | size: 24 |
|---|
Virtual star direction in the quasi-true of date frame
|
|
| 15 | num_nodes_rt |
| binary uint16 | size: 2 |
|---|
|
Number of nodes of the ray tracing provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
|
|
| 16 | tangent_point_ind |
| binary uint16 | size: 2 |
|---|
|
Index of the tangent point in the list of the ray tracing nodes provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
|
|
| 17 | p_delta |
| binary array[2] | size: 8 |
|---|
Interpolation factor P for the law delta(lambda). 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary float | size: 4 |
|---|
|
unit: "degrees"
|
|
|
| 18 | q_delta |
| binary array[2] | size: 8 |
|---|
Interpolation factor Q for the law delta(lambda). 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary float | size: 4 |
|---|
|
unit: "degrees"
|
|
|
| 19 | p_h0 |
| binary array[2] | size: 8 |
|---|
Interpolation factors P for the law h0(lambda). 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary float | size: 4 |
|---|
|
unit: "m"
|
|
|
| 20 | q_h0 |
| binary array[2] | size: 8 |
|---|
Interpolation factors Q for the law h0(lambda). 2 values provided at the beginning and during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary float | size: 4 |
|---|
|
unit: "m"
|
|
|
| 21 | lat_rt |
| binary array[150] | size: 600 |
|---|
Latitude of the ray tracing grid nodes provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_north"
converted unit: "degrees_north" (multiply by 1/1e+06)
|
|
|
| 22 | long_rt |
| binary array[150] | size: 600 |
|---|
Longitude of the ray tracing grid nodes provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary int32 (double) | size: 4 |
|---|
unit: "1e-6 degrees_east"
converted unit: "degrees_east" (multiply by 1/1e+06)
|
|
|
| 23 | alt_rt |
| binary array[150] | size: 600 |
|---|
Altitude of the ray tracing grid nodes provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary uint32 (double) | size: 4 |
|---|
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|
|
| 24 | air_density |
| binary float | size: 4 |
|---|
Air density at the tangent point provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
unit: "1/cm3"
|
|
| 25 | atm_press |
| binary float | size: 4 |
|---|
Atmospheric pressure at the tangent point provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
unit: "Pa"
|
|
| 26 | temp_rt |
| binary array[150] | size: 600 |
|---|
Air temperature at the ray tracing grid nodes provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing - see the Occultation data GADS)
| binary float | size: 4 |
|---|
|
unit: "K"
|
|
|
| 27 | sun_zenith_angle_spacecraft |
| binary float | size: 4 |
|---|
Sun zenith angle at the spacecraft
unit: "degrees"
|
|
| 28 | sun_zenith_angle_tangent |
| binary float | size: 4 |
|---|
Sun zenith angle at the tangent point
unit: "degrees"
|
|
| 29 | sun_azimuth_angle_tangent |
| binary float | size: 4 |
|---|
Sun azimuth angle at the tangent point
unit: "degrees"
|
|
| 30 | app_altitude |
| binary uint32 (double) | size: 4 |
|---|
Apparent altitude of the central background
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|