| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Start time (MJD) of the elevation scan to which this data pertains.(ZPD crossing time of first sweep in scan for which offset cal. data are valid)
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 (always set to zero for this ADSR)
|
|
| 2 | band_valid_pcd |
| binary array[5] | size: 5 |
|---|
Band Validity PCD for latest offset measurement (5 values for bands A, AB, B, C, and D). 0 = non-corrupted; 1 = corrupted due to instrument errors; 2 = corrupted due to transmission errors. 4 = corrupted due to observational validation.
|
|
| 3 | acc_fce_corr |
| binary array[5] | size: 10 |
|---|
Accumulated FCE correction in gain calibration data, at end of offset measurement sequence. 5 values for bands A, AB, B, C, and D.
|
|
| 4 | sweep_dir |
| ascii string | size: 1 |
|---|
|
Sweep direction, 'F' = forward and 'R' = reverse
|
|
| 5 | det_non_linear_flux |
| binary array[4] | size: 4 |
|---|
Detector non-linearity flux validity. (4 values, for detectors A1, A2, AB and B), 0 = flux value is valid, 1 = flux greater than upper threshold or less than lower threshold for at least 1 offset
|
|
| 6 | spare_1 |
| binary bytes | size: 46 |
|---|
|
Spare
|
hidden: true
|
| 7 | band |
| binary array[5] |
|---|
bands A, AB, B, C, and D
| binary record |
|---|
| id | field name | definition |
|---|
| 0 | zpd_cross_time |
| binary time | size: 12 |
|---|
ZPD crossing time of first sweep in currently valid offset sequence for this band
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 | dec_factor |
| binary uint16 | size: 2 |
|---|
|
Decimation factor
|
|
| 2 | num_corr_spikes |
| binary uint32 | size: 4 |
|---|
|
Number of corrected spikes
|
|
| 3 | spike_sweep_id |
| binary array[10] | size: 20 |
|---|
Sweep IDs of IGM containing spike
|
|
| 4 | spike_sample |
| binary array[10] | size: 40 |
|---|
Sample position of spikes in IGM
|
|
| 5 | spike_amp |
| binary array[10] | size: 160 |
|---|
Amplitude of spikes
| binary complex | size: 16 |
|---|
| binary record | size: 16 |
|---|
| id | field name | definition |
|---|
| 0 | real |
|
| 1 | imaginary |
|
|
|
|
|
| 6 | spike_rem |
| binary uint16 | size: 2 |
|---|
|
Number of remaining detected spikes
|
|
| 7 | avg_amp_spike_rem |
| binary array[2] | size: 16 |
|---|
Average amplitude of remaining detected spikes
|
|
| 8 | num_points |
| binary uint32 | size: 4 |
|---|
|
Number of data points. Before decimation, low resolution sweep produces approximately 30769 data points while high resolution sweep produces approximately 307 692 data points. The decimation factor depends on the band and varies from 11 to 38
|
|
| 9 | off_data |
| binary array[dim_0] |
|---|
Complex data points. IGM data points are complex data output from FIR filter at the SPE.
dim_0: int(../num_points)
| binary complex | size: 8 |
|---|
| binary record | size: 8 |
|---|
| id | field name | definition |
|---|
| 0 | real |
|
| 1 | imaginary |
|
|
|
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