SIR_L1B_OP_TIME_ORBIT_DATA

binary record "SIR_L1B_OP_TIME_ORBIT_DATA"size: 48
SIRAL L1B Ocean Products time and orbit data

idfield namedefinition
0mdsr_time
binary timesize: 12
Data record time (MDSR time stamp)

unit: "s since 2000-01-01"

value: float(./days) * 86400 + float(./seconds) + float(./microseconds) / 1000000
binary recordsize: 12
ENVISAT binary datetime

idfield namedefinition
0days
binary int32size: 4
days since January 1st, 2000 (may be negative)

unit: "days since 2000-01-01"
1seconds
binary uint32size: 4
seconds since start of day

unit: "s"
2microseconds
binary uint32size: 4
microseconds since start of second

unit: "1e-6 s"
1tai_utc_diff
binary int16size: 2
TAI - UTC Difference

unit: "s"
2spare
binary bytessize: 2
Spares

hidden: true
3mode_id
binary recordsize: 2
idfield namedefinition
0instr_mode
binary uint8size: 0:6
Instrument mode: 1 = LRM, 2 = SAR, 3 = SARin, 11 = CAL1-LRM, 12 = CAL1-SAR, 13 = CAL1-SARin, 22 = CAL2-SAR, 23 = CAL-SARin
1spare
binary bytessize: 1:2
spare (reserved, set to 0)

hidden: true
4src_seq_count
binary uint16size: 2
Source sequence counter (only for LRM - spare in SAR and SARin)
5instr_conf_flags
binary record "SIR_L1B_OP_INSTR_CONFIG"size: 4
6burst_count
binary uint32size: 4
Burst counter (surface sample counter, always starts from 1 and incremented at group rate)
7lat
binary int32 (double)size: 4
Latitude of measurement

unit: "1e-7 degrees_north"

converted unit: "degrees_north" (multiply by 1/10000000)
8lon
binary int32 (double)size: 4
Longitude of measurement

unit: "1e-7 degrees_east"

converted unit: "degrees_east" (multiply by 1/10000000)
9alt_cog_ref_ellip
binary int32size: 4
Altitude of CoG above reference ellipsoid (interpolated value)

unit: "mm"
10inst_alt_rate
binary int32size: 4
Instantaneous altitude rate derived from orbit

unit: "mm/s"
11meas_conf_flags
binary record "SIR_L1B_OP_MEAS_CONF"size: 4