| 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 int8 | size: 1 |
|---|
|
Attachment Flag (always set to zero for this ADSR)
|
|
| 2 | beam_id |
| ascii string | size: 3 |
|---|
|
Beam ID: SS1, SS2, SS3, SS4, or SS5 for WS and GM images. Set to NS and Oslash; for AP, IM, and WV images
|
|
| 3 | polar |
| ascii string | size: 3 |
|---|
|
Tx/Rx polarization H/H, H/V, V/V, or V/H
|
|
| 4 | chirp_width |
| binary float | size: 4 |
|---|
|
3-dB pulse width of chirp replica cross-correlation function between extract chirp and nominal chirp
|
|
| 5 | chirp_sidelobe |
| binary float | size: 4 |
|---|
First side lobe level of chirp replica cross-correlation function between reconstructed chirp and nominal chirp
unit: "dB"
|
|
| 6 | chirp_islr |
| binary float | size: 4 |
|---|
ISLR of chirp replica cross-correlation function between reconstructed chirp and nominal chirp
unit: "dB"
|
|
| 7 | chirp_peak_loc |
| binary float | size: 4 |
|---|
|
Peak location of cross-correlation function between reconstructed chirp and nominal chirp
|
|
| 8 | re_chirp_power |
| binary float | size: 4 |
|---|
Reconstrcted Chirp power
unit: "dB"
|
|
| 9 | elev_chirp_power |
| binary float | size: 4 |
|---|
|
Equivalent chirp Power
|
|
| 10 | chirp_quality_flag |
| binary uint8 | size: 1 |
|---|
|
Reconstructed chirp exceeds quality thresholds. 0 = reconstructed chirp below quality thresholds, current chirp is the nominal chirp. 1 = reconstructed chirp above quality thresholds, current chirp is the reconstructed chirp.
|
|
| 11 | ref_chirp_power |
| binary float | size: 4 |
|---|
|
Reference chirp Power
|
|
| 12 | normalization_source |
| ascii string | size: 7 |
|---|
|
Normalization source "REPLICA", "REF ", "EQV ", "NONE "
|
|
| 13 | spare_1 |
| binary bytes | size: 4 |
|---|
|
Spare
|
hidden: true
|
| 14 | cal_pulse_info |
| binary array[32] | size: 1408 |
|---|
| binary record | size: 44 |
|---|
| id | field name | definition |
|---|
| 0 | max_cal |
| binary array[3] | size: 12 |
|---|
Max of Cal pulses 1, 2, and 3 amplitude (record 1)
|
|
| 1 | avg_cal |
| binary array[3] | size: 12 |
|---|
Average of Cal pulse 1, 2, and 3 amplitude over the 3 dB on either side of the max amplitude (record 1)
|
|
| 2 | avg_val_1a |
| binary float | size: 4 |
|---|
|
Average of Cal pulse 1A over the sample window (record 1)
|
|
| 3 | phs_cal |
| binary array[4] | size: 16 |
|---|
Extracted phase for calibration pulse 1, 1A, 2, and 3 (record 1)
| binary float | size: 4 |
|---|
|
unit: "degrees"
|
|
|
|
|
|
| 15 | spare_2 |
| binary bytes | size: 16 |
|---|
|
Spare
|
hidden: true
|