| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Start time of the measurement
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 | attach_flag |
| binary uint8 | size: 1 |
|---|
|
Attachment flag. 1 = all MDSRs corresponding to this ADSR are blank; 0 = otherwise.
|
|
| 2 | lat |
| binary int32 (double) | size: 4 |
|---|
Latitude of the spacecraft. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees_north"
converted unit: "degrees_north" (multiply by 1/1000000)
|
|
| 3 | longit |
| binary int32 (double) | size: 4 |
|---|
Longitude of the spacecraft. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees_east"
converted unit: "degrees_east" (multiply by 1/1000000)
|
|
| 4 | alt |
| binary uint32 (double) | size: 4 |
|---|
Altitude of the spacecraft. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|
| 5 | tangent_lat |
| binary int32 (double) | size: 4 |
|---|
Latitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees_north"
converted unit: "degrees_north" (multiply by 1/1000000)
|
|
| 6 | tangent_long |
| binary int32 (double) | size: 4 |
|---|
Longitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees_east"
converted unit: "degrees_east" (multiply by 1/1000000)
|
|
| 7 | tangent_alt |
| binary uint32 (double) | size: 4 |
|---|
Altitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-2 m"
converted unit: "m" (multiply by 1/100)
|
|
| 8 | err_tangent_lat |
| binary int32 (double) | size: 4 |
|---|
Error on the latitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-7 degrees_north"
converted unit: "degrees_north" (multiply by 1/10000000)
|
|
| 9 | err_tangent_long |
| binary int32 (double) | size: 4 |
|---|
Error on the longitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-7 degrees_east"
converted unit: "degrees_east" (multiply by 1/10000000)
|
|
| 10 | err_tangent_alt |
| binary uint32 (double) | size: 4 |
|---|
Error on the altitude of the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-3 m"
converted unit: "m" (multiply by 1/1000)
|
|
| 11 | ins_point_dir_azimuth |
| binary int32 (double) | size: 4 |
|---|
Instrument pointing direction (azimuth). Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees"
converted unit: "degrees" (multiply by 1/1000000)
|
|
| 12 | ins_point_dir_elevation |
| binary int32 (double) | size: 4 |
|---|
Instrument pointing direction (elevation). Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "1e-6 degrees"
converted unit: "degrees" (multiply by 1/1000000)
|
|
| 13 | tangent_atm_p |
| binary float | size: 4 |
|---|
Tangent point atmospheric pressure (from external model)
unit: "Pa"
|
|
| 14 | tangent_temp |
| binary float | size: 4 |
|---|
Tangent point temperature (from external model)
unit: "K"
|
|
| 15 | tangent_density |
| binary float | size: 4 |
|---|
Tangent point density (from external model)
unit: "1/cm3"
|
|
| 16 | air_density |
| binary float | size: 4 |
|---|
Local air density from GOMOS atmospheric profile
unit: "1/cm3"
|
|
| 17 | air_density_std |
| binary uint16 (double) | size: 2 |
|---|
Standard deviation for the local air density. A value of 65535 indicates the value is invalid.
unit: "1e-1 %"
converted unit: "%" (multiply by 1/10)
|
|
| 18 | local_temp |
| binary float | size: 4 |
|---|
Local temperature
unit: "K"
|
|
| 19 | local_temp_std |
| binary uint16 (double) | size: 2 |
|---|
Standard deviation for the local temperature. A value of 65535 indicates the value is invalid.
unit: "1e-1 %"
converted unit: "%" (multiply by 1/10)
|
|
| 20 | pcd |
| binary uint8 | size: 1 |
|---|
|
PCD summary. 0 = atmospheric processing was valid; other value = atmospheric processing was not valid.
|
|
| 21 | sun_zenith_spacecraft |
| binary float | size: 4 |
|---|
Sun zenith angle at the spacecraft. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "degrees"
|
|
| 22 | sun_zenith_tangent |
| binary float | size: 4 |
|---|
Sun zenith angle at the tangent point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "degrees"
|
|
| 23 | sun_azimuth_tangent |
| binary float | size: 4 |
|---|
Sun azimuth angle at the tangenth point. Value provided during the measurement, generally at half-measurement (the temporal shift is given by the time shift for the ray tracing.
unit: "degrees"
|
|