The Level-1 ECHO_PLRM product contains all L1B tracking measurements in pseudo-LRM (PLRM) mode, at 20 Hz rate and for both Ku and C band.
The main parameters of Level-1 ECHO_PLRM product are:
Parameter name | Description | Units |
time_l1b_echo_plrm | UTC time seconds elapsed since January 1st 2000 00:00:00 | seconds |
lat_l1b_echo_plrm | Latitude | 1.00e-06 degrees North |
lon_l1b_echo_plrm | Longitude | 1.00e-06 degrees East |
surf_type_l1b_echo_plrm | Altimeter surface type | 0b:open_ocean_or_semi-enclosed_seas 1b:enclosed_seas_or_lakes 2b:continental_ice 3b:land |
range_ku_l1b_echo_plrm range_c_l1b_echo_plrm |
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_plrm sig0_cal_c_l1b_echo_plrm |
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_plrm i2q2_meas_c_l1b_echo_plrm | I2+Q2 echo waveforms corrected for the GPRW instrumental effect | count (unit) 1.00e-03 (scale factor) |
For further information about Level-1 ECHO_PLRM product parameters:
Level-1 ECHO_PLRM Time parameters
Level-1 ECHO_PLRM Location parameters
Level-1 ECHO_PLRM Instrument status
Level-1 ECHO_PLRM Surface Type
Level-1 ECHO_PLRM Tracker range