Level-1 ECHO_LRM Product
The Level-1 ECHO_LRM product contains all L1B tracking measurements in LRM mode, at 20 Hz rate and for both Ku and C band.
The main parameters of Level-1 ECHO_LRM product are:
| Parameter name | Description | Units |
| time_l1b_echo_lrm | UTC time seconds elapsed since January 1st 2000 00:00:00 | seconds |
| lat_l1b_echo_lrm | Latitude | 1.00e-06 degrees North |
| lon_l1b_echo_lrm | Longitude | 1.00e-06 degrees East |
| surf_type_l1b_echo_lrm | Altimeter surface type | 0b: open_ocean_or_semi-enclosed_seas 1b:enclosed_seas_or_lakes 2b:continental_ice 3b:land |
| range_ku_l1b_echo_lrm range_c_l1b_echo_lrm |
Tracker range (Ku or C band) corrected for USO frequency drift, internal path delay and Doppler corrections. | 1.00e-04 meters(unit) 700000 meters (offset to be added) |
| sig0_cal_ku_l1b_echo_lrm sig0_cal_c_l1b_echo_lrm |
Scaling factor (Ku or C band) for sigma0 evaluation corrected for AGC instrumental errors and internal calibration | 1.00e-02 dB |
| i2q2_meas_ku_l1b_echo_lrm i2q2_meas_c_l1b_echo_lrm | I2+Q2 echo waveforms corrected for the GPRW instrumental effect | count (unit) 1.00e-03 (scale factor) |
For further information about Level-1 ECHO_LRM product parameters:
Level-1 ECHO_LRM Time parameters
Level-1 ECHO_LRM Location parameters
Level-1 ECHO_LRM Instrument status
Level-1 ECHO_LRM Tracker range