Supported ENVISAT Products |

## Contains ASAR external calibration data

Fields of ENVISAT ASA_XCA_AX_GADS Records

Index | Identifier | Field Type | Field Length | Description | Units
0 | `"dsr_time"` | MJD | 1 | Time of creation of this file | MJD
1 | `"dsr_length"` | ULong | 1 | Length of this DSR in bytes | bytes
2 | `"ext_cal_im_hh"` | Float | 7 | External Calibration scaling factors for IM mode, HH polar. (7 values from swath IS1 to IS7) | -
3 | `"ext_cal_im_vv"` | Float | 7 | External Calibration scaling factors for IM mode, VV polar. (7 values from swath IS1 to IS7) | -
4 | `"ext_cal_ap_hh"` | Float | 7 | External Calibration scaling factors for AP mode, HH polar. (7 values from swath IS1 to IS7) | -
5 | `"ext_cal_ap_vv"` | Float | 7 | External Calibration scaling factors for AP mode, VV polar. (7 values from swath IS1 to IS7) | -
6 | `"ext_cal_ap_hv"` | Float | 7 | External Calibration scaling factors for AP mode, HV polar. (7 values from swath IS1 to IS7) | -
7 | `"ext_cal_ap_vh"` | Float | 7 | External Calibration scaling factors for AP mode, VH polar. (7 values from swath IS1 to IS7) | -
8 | `"ext_cal_wv_hh"` | Float | 7 | External Calibration scaling factors for WV mode, HH polar. (7 values from swath IS1 to IS7) | -
9 | `"ext_cal_wv_vv"` | Float | 7 | External Calibration scaling factors for WV mode, VV polar. (7 values from swath IS1 to IS7) | -
10 | `"ext_cal_ws_hh"` | Float | 1 | External Calibration scaling factors for WS mode, HH polar. | -
11 | `"ext_cal_ws_vv"` | Float | 1 | External Calibration scaling factors for WS mode, VV polar. | -
12 | `"ext_cal_gm_hh"` | Float | 1 | External Calibration scaling factors for GM mode, HH polar. | -
13 | `"ext_cal_gm_vv"` | Float | 1 | External Calibration scaling factors for GM mode, VV polar. | -
14 | `"elev_ang_is1"` | Float | 1 | Center of swath elevation angle for IS1 | deg.
15 | `"elev_ang_is2"` | Float | 1 | Center of swath elevation angle for IS2 | deg.
16 | `"elev_ang_is3_ss2"` | Float | 1 | Center of swath elevation angle for IS3 / SS2 | deg.
17 | `"elev_ang_is4_ss3"` | Float | 1 | Center of swath elevation angle for IS4 / SS3 | deg.
18 | `"elev_ang_is5_ss4"` | Float | 1 | Center of swath elevation angle for IS5 / SS4 | deg.
19 | `"elev_ang_is6_ss5"` | Float | 1 | Center of swath elevation angle for IS6 / SS5 | deg.
20 | `"elev_ang_is7"` | Float | 1 | Center of swath elevation angle for IS7 | deg.
21 | `"elev_ang_ss1"` | Float | 1 | Center of swath elevation angle for SS1 | deg.
22 | `"pattern_is1"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS1 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
23 | `"pattern_is2"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS2 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
24 | `"pattern_is3_ss2"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS3 / SS2 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
25 | `"pattern_is4_ss3"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS4 / SS3 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
26 | `"pattern_is5_ss4"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS5 / SS4 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
27 | `"pattern_is6_ss5"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS6 / SS5 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
28 | `"pattern_is7"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for IS7 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps.) | dB
29 | `"pattern_ss1"` | Float | 201 | Two-way Antenna Elevation Pattern Gain Table for SS1 (pattern is defined from Center of swath elevation angle - 5 deg. to Center of Swath elevation angle + 5 deg. in 0.05 degree steps. ) | dB
30 | `"spare_1"` | Spare | 1 | Spare | -