RA2_SCIENCE_LEVEL_1B

binary record ""

size: 606

RA-2 Main MDS MDSR

field name

definition

dsr_time

binary time

size: 12

MDSR Time stamp. Time fields based on UTC are computed for each record and referred to the center of the averaged waveform

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"

quality_flag

binary int8	size: 1
Quality Indicator (-1 for blank MDSR, 0 otherwise)

spare_1

binary bytes	size: 3
Spare

hidden: true

obdh_data_wd

binary uint64	size: 8
(43 bits) The datatation timing words are transcriptions of the words provided in the source packet, and thus does not change for the 20 records comprising a source packet. unit: "1/524288 s"

uso_data_wd

binary uint64	size: 8
(40 bits) Decoded from the secondary packet header of each source packet, and thus does not change for the 20 seconds comprising a source packet. unit: "10 microsec"

rec_cnt

binary uint32	size: 4
Record Counter.

sour_seq_cnt

binary uint16	size: 2
Source Sequence Count. Extracted from the header of the source packet, and thus does not change for the 20 records comprising a source packet.

data_blk_num

binary uint16	size: 2
Data Block Number

lat

binary int32 (double)	size: 4
Geodetic Latitude (positive N, negative S) unit: "1e-6 degrees_north" converted unit: "degrees_north" (multiply by 1/1000000)

lon

binary int32 (double)	size: 4
Longitude (positive E, 0 at Greenwich, negative W) unit: "1e-6 degrees_east" converted unit: "degrees_east" (multiply by 1/1000000)

alt_anten_ellip

binary uint32	size: 4
Altitude of CoG above reference ellipsoid (from best available orbit) unit: "mm"

instant_ht_rate

binary int16	size: 2
Instantaneous height rate derived from orbit unit: "mm/s"

instr_oper_id_flags

binary uint32	size: 4
Instrument operations identification.

level1b_proc_meas_conf_flags

binary uint32	size: 4
Level 1B processing Measurement Confidence Data.

spare_2

binary bytes	size: 4
Spare

hidden: true

ave_ku_wvform_corr

binary array[128]

size: 256

Average Ku-band waveform corrected for IF transfer function.

binary uint16 size: 2

unit: "1/2048"

cen_ku_filter_dft_corr

binary array[2]

size: 4

Central Ku-band filters from DFT corrected for IF transfer function.

binary uint16 size: 2

unit: "1/2048"

ave_s_wvform_corr

binary array[64]

size: 128

Average S-band waveforms corrected for IF transfer function.

binary uint16 size: 2

unit: "1/8192"

ind_2add_dft_samp

binary array[2]

size: 4

Indexes of the two additional DFT samples

binary int16 size: 2

ku_win_delay

binary uint64	size: 8
Ku-band Window Delay unit: "ps"

s_win_delay

binary uint64	size: 8
S-band Window Delay unit: "ps"

ku_agc

binary uint16	size: 2
Ku-band AGC unit: "1e-2 dB"

s_agc

binary uint16	size: 2
S-band AGC unit: "1e-2 dB"

rx_dist_c

binary uint16	size: 2
RX dist C unit: "12.5 ns"

rx_dist_f

binary uint8	size: 1
RX dist F

spare_3

binary bytes	size: 1
Spare

hidden: true

ku_scale_fac

binary int16	size: 2
Ku-band scaling factor for sigma zero evaluation unit: "1e-2 dB"

s_scale_fac

binary int16	size: 2
S-band scaling factor for sigma zero evaluation unit: "1e-2 dB"

ku_time_delay_fly_cal

binary int32	size: 4
Ku time delay flight calibration factor unit: "ps"

s_time_delay_fly_cal

binary int32	size: 4
S time delay flight calibration factor unit: "ps"

ku_sig_zero_fly_cal

binary int16	size: 2
Ku sigma zero flight calibration factor unit: "1e-2 dB"

s_sig_zero_fly_cal

binary int16	size: 2
S sigma zero flight calibration factor unit: "1e-2 dB"

meas_ku_fly_cal_eval

binary uint16	size: 2
Number of measures for Ku flight calibration factor evaluation

meas_s_fly_cal_eval

binary uint16	size: 2
Number of measures for S flight calibration factor evaluation

agc_corr_ku_s_band

binary int16	size: 2
AGC correction factor for Ku and S bands unit: "1e-2 dB"

spare_4

binary bytes	size: 6
Spare

hidden: true

ku_dopp_comp

binary int32	size: 4
Ku-band Doppler compensation unit: "ps"

s_dopp_comp

binary int32	size: 4
S-band Doppler compensation unit: "ps"

noise_pow_meas

binary int16	size: 2
Noise power measurement unit: "1/2048"

agc_val_noise

binary uint16	size: 2
AGC value of noise power measurement unit: "1e-2 dB"

spare_5

binary bytes	size: 12
Spare

hidden: true

width_discrim_fft

binary int16	size: 2
Width discriminator in FFT filter units (unit: 1/256 FFT filter)

cen_discrim_fft

binary int16	size: 2
Centre of gravity discriminator in FFT filter units (unit: 1/256 FFT filter)

lead_edge_pos_discrim_fft

binary int16	size: 2
Leading Edge Position discriminator in FFT filter units (unit: 1/256 FFT filter)

doffs_fft

binary int16	size: 2
Doffset in FFT filter units (unit: 1/256 FFT filter)

agc_discrim

binary int16	size: 2
AGC discriminator unit: "1e-2 dB"

ref_power_val

binary int16	size: 2
Reference Power value unit: "1e-2 dB"

agc_pred_rate

binary int16	size: 2
AGC predicted rate unit: "1e-2 dB"

agc_corr_val

binary int16	size: 2
AGC corrected value unit: "1e-2 dB"

time_delay_pred

binary int32	size: 4
Time delay predicted rate unit: "ps/s"

time_delay_corr

binary int32	size: 4
Time delay corrected value unit: "ps"

snr_lol_logic

binary uint16	size: 2
SNR Loss-of-lock logic unit: "1e-2 dB"

trak_interpol_nd_agc

binary int32	size: 4
Tracking filters interpolator offset Nd_AGC unit: "1/100"

trak_interpol_nd_trk

binary int32	size: 4
Tracking filters interpolator offset Nd_Trk unit: "1/100"

mft_thresh

binary uint16	size: 2
MFT Threshold

re_logic_1_cnt

binary int16	size: 2
Resolution Selection Logic first counter

re_logic_2_cnt

binary int16	size: 2
Resolution Selection Logic second counter

alfa_coeff_dist_fil

binary uint32	size: 4
alfa coefficient for on-board distance filter unit: "-0.000001"

beta_coeff_dist_fil

binary uint32	size: 4
beta coefficient for on-board distance filter unit: "-0.000001"

alfa_coeff_agc_fil

binary uint32	size: 4
alfa coefficient for on-board AGC filter unit: "-0.000001"

beta_coeff_agc_fil

binary uint32	size: 4
beta coefficient for on-board AGC filter unit: "-0.000001"

delta_alfa_1_sf

binary int16	size: 2
delta-alfa 1 on-board scaling factor for S band AGC evaluation unit: "1e-2 dB"

delta_alfa_2_sf

binary int16	size: 2
delta-alfa 2 on-board scaling factor for S band AGC evaluation unit: "1e-2 dB"

delta_alfa_3_sf

binary int16	size: 2
delta-alfa 3 on-board scaling factor for S band AGC evaluation unit: "1e-2 dB"

spare_6

binary bytes	size: 1
Spare

hidden: true

uso_clock_smoot

binary uint64	size: 8
USO clock smooth unit: "1e-6 ps"

uso_corr_qual_flag

binary uint8	size: 1
USO correction quality flag