id | field name | definition |
0 | dsr_time |
binary time | size: 12 |
Start time of the DSR
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"
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1 | seconds |
binary uint32 | size: 4 |
seconds since start of day
unit: "s"
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2 | microseconds |
binary uint32 | size: 4 |
microseconds since start of second
unit: "1e-6 s"
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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)
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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 1/1000000)
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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 1/1000000)
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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)
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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 1/1000000)
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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 1/1000000)
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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)
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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 1/10000000)
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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 1/10000000)
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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)
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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)
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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 1/1000000)
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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 1/1000000)
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14 | star_direct |
binary array[6] | size: 24 |
Virtual star direction in the quasi-true of date frame
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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)
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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)
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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"
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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"
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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"
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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"
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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 1/1000000)
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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 1/1000000)
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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)
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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"
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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"
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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"
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27 | spare_1 |
binary bytes | size: 32 |
Spare
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hidden: true
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