| id | field name | definition |
|---|
| 0 | zero_doppler_time |
| binary time | size: 12 |
|---|
Zero Doppler azimuth time at which estimate applies
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 | slant_range_time |
| binary float | size: 4 |
|---|
2-way slant range time origin (t0)
unit: "ns"
|
|
| 3 | dop_coef |
| binary array[5] | size: 20 |
|---|
Doppler centroid coefficients as a function of slant range time: D0, D1, D2, D3, and D4.where Doppler Centroid = D0 + D1(tSR-t0) + D2(tSR-t0)2 + D3(tSR-t0)3 + D4(tSR-t0)4 (unit: HzHz/sHz/s2Hz/s3Hz/s4)
|
|
| 4 | dop_conf |
| binary float | size: 4 |
|---|
|
Doppler Centroid Confidence MeasureValue between 0 and 1, 0 = poorest confidence, 1= highest confidence
|
|
| 5 | dop_thresh_flag |
| binary uint8 | size: 1 |
|---|
|
Doppler Confidence Below Threshold Flag. 0 = confidence above threshold, Doppler Centroid calculated from data. 1 = confidence below threshold, Doppler Centroid calculated from orbit
|
|
| 6 | delta_dopp_coeff |
| binary array[5] | size: 10 |
|---|
| binary uint16 | size: 2 |
|---|
|
Delta Doppler coefficents DelatD0(SS1) , DelatD0(SS2) DelatD0(SS3) DelatD0(SS4) DelatD0(SS5)
|
|
|
| 7 | spare_1 |
| binary bytes | size: 3 |
|---|
|
Spare
|
hidden: true
|