| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Start time of the first dark measurement state (out of three) which was used to calculate this ADSR
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
|
|
| 2 | sun_spect_id |
| ascii string | size: 2 |
|---|
|
Sun spectrum identifier ('X ' where X indicates the solar measurement mode ('D': Calibrated Diffuser (ESM/ASM), 'E': Uncalibrated Diffuser (ESM), 'A': Uncalibrated Diffuser (ASM), 'O': Calibrated Occultation, 'U': Uncalibrated Occultation, 'S': Calibrated Sun Solar, 'V': Uncalibrated Sun Solar))
|
|
| 3 | neu_den_filt_flag |
| binary uint8 | size: 1 |
|---|
|
Neutral density filter flag
|
|
| 4 | wvlen_sun_spec |
| binary array[8, 1024] | size: 32768 |
|---|
Wavelength of the sun spectrum
| binary float | size: 4 |
|---|
|
unit: "nm"
|
|
|
| 5 | mean_ref_spec |
| binary array[8, 1024] | size: 32768 |
|---|
Mean sun reference spectrum (unit: calibrated = photons/(cm2.nm.s), uncalibrated = BU)
|
|
| 6 | rel_rad_prec |
| binary array[8, 1024] | size: 32768 |
|---|
Relative radiometric precision of the mean sun reference spectrum
|
|
| 7 | rel_rad_acc |
| binary array[8, 1024] | size: 32768 |
|---|
Relative radiometric accuracy of the mean sun reference spectrum
|
|
| 8 | diff_aper_etalon |
| binary array[8, 1024] | size: 32768 |
|---|
Diffuser / Small Aperture Etalon
|
|
| 9 | ave_azi_pos |
| binary float | size: 4 |
|---|
Average azimuth mirror position
unit: "degrees"
|
|
| 10 | avg_ele_pos |
| binary float | size: 4 |
|---|
Average elevation mirror position (diffuser)
unit: "degrees"
|
|
| 11 | avg_solar_ele_ang |
| binary float | size: 4 |
|---|
Average solar elevation angle
unit: "degrees"
|
|
| 12 | mean_pmd |
| binary array[7] | size: 28 |
|---|
Mean value of the corresponding PMD measurements
| binary float | size: 4 |
|---|
|
unit: "BU"
|
|
|
| 13 | pmd_out |
| binary array[7] | size: 28 |
|---|
PMD out-of-band signal
| binary float | size: 4 |
|---|
|
unit: "BU"
|
|
|
| 14 | dopp_shift_500nm |
| binary float | size: 4 |
|---|
Doppler shift at 500 nm
unit: "nm"
|
|