PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM STANDARD_DATA_PRODUCT_ID = HEA DATA_SET_ID = "MEX-M-MRS-1/2/3-EXT1-0988-V1.0" PRODUCT_ID = "M00SUE0L1A_HEA_061500145_00.TXT" PRODUCT_CREATION_TIME = 2009-05-13T07:36:49.000 PRODUCER_ID = "SUE" INSTRUMENT_HOST_ID = "MEX" OBJECT = TEXT PUBLICATION_DATE = 2006-06-02 NOTE = "DSN MEX Data Collection" END_OBJECT = TEXT END Miscellaneous ============= This is the first report since HEA6130A.TXT. The experiment summarized below was the second using specular track HGA pointing. The first was on 2006/022. Open Loop Data ============== Data Collection --------------- We have completed quick-look processing on the following MEX RSR open loop bistatic radar data at Stanford: DOY DSS RSR BAND RSR CH KSPS BT REC RECS RSR MAX START STOP ID RS LEN FILE NAME SNR --- --- -------- -------- ---- --- -- ---- -- ----- ----- ------------ ----- 150 14 01:45:00 02:55:00 -/XR 4 3 25 16 25260 16801 6150014A.RSR 3.7 150 14 01:45:00 02:55:00 -/XL 6 3 25 16 25260 16801 6150014C.RSR 4.0 150 14 02:55:00 03:53:00 -/XR 4 3 25 16 25260 13921 6150025A.RSR 63.1 150 14 02:55:00 03:53:00 -/XL 6 3 25 16 25260 13921 6150025C.RSR 33.4 150 14 03:53:00 04:59:00 -/XR 4 3 25 16 25260 15841 6150035A.RSR 7.0 150 14 03:53:00 04:59:00 -/XL 6 3 25 16 25260 15841 6150035C.RSR 8.5 150 14 04:59:00 06:01:59 -/XR 4 3 25 16 25260 15120 6150045A.RSR 5.3 150 14 04:59:00 06:01:59 -/XL 6 3 25 16 25260 15120 6150045C.RSR 5.7 150 14 01:45:00 02:55:00 -/SR 3 3 25 16 25260 16801 6150014B.RSR 3.8 150 14 01:45:00 02:55:00 -/SL 5 3 25 16 25260 16801 6150014D.RSR 4.3 150 14 02:55:00 03:53:00 -/SR 3 3 25 16 25260 13921 6150025B.RSR 43.5 150 14 02:55:00 03:53:00 -/SL 5 3 25 16 25260 13921 6150025D.RSR 15.6 150 14 03:53:00 04:59:00 -/SR 3 3 25 16 25260 15841 6150035B.RSR 13.6 150 14 03:53:00 04:59:00 -/SL 5 3 25 16 25260 15841 6150035D.RSR 10.2 150 14 04:59:00 06:01:59 -/SR 3 3 25 16 25260 15120 6150045B.RSR 8.7 150 14 04:59:00 06:01:59 -/SL 5 3 25 16 25260 15120 6150045D.RSR 10.8 150 14 03:56:00 04:17:00 -/XR 4 4 100 16 20260 25201 6150035E.RSR 16.5 150 14 03:56:00 04:17:00 -/SR 3 4 100 16 20260 25201 6150035F.RSR 13.2 150 14 03:56:00 04:17:00 -/XL 6 4 100 16 20260 25201 6150035G.RSR 16.2 150 14 03:56:00 04:17:00 -/SL 5 4 100 16 20260 25201 6150035H.RSR 9.0 150 14 04:17:00 04:38:00 -/XR 4 4 100 16 20260 25201 6150041A.RSR 19.1 150 14 04:17:00 04:38:00 -/SR 3 4 100 16 20260 25201 6150041B.RSR 14.0 150 14 04:17:00 04:38:00 -/XL 6 4 100 16 20260 25201 6150041C.RSR 15.9 150 14 04:17:00 04:38:00 -/SL 5 4 100 16 20260 25201 6150041D.RSR 9.5 150 14 04:38:00 04:58:58 -/XR 4 4 100 16 20260 25161 6150043A.RSR 13.6 150 14 04:38:00 04:58:58 -/SR 3 4 100 16 20260 25161 6150043B.RSR 12.2 150 14 04:38:00 04:58:58 -/XL 6 4 100 16 20260 25161 6150043C.RSR 14.9 150 14 04:38:00 04:58:58 -/SL 5 4 100 16 20260 25161 6150043D.RSR 10.6 These appear to be among the best MEX bistatic data we have collected in terms of system stability and reproducibility of calibration results. Mars was setting in the western sky, so the system temperature increased 4-6K on each channel during the course of the one hour surface observation. But the rise was a smooth exponential in each case with no "cloud" features. Also the pre-calibration and post-calibration measurements were very solid and self-consistent. All of this helps significantly when attempting to detect and measure weak signals, as was the case for the Stealth target area here. No unambiguous echoes were seen in real time; but echoes in both X-RCP and X-LCP are very clear in the data which have been processed at Stanford. The attached plot shows the calibrated echo powers in both X-Band channels. The table below shows the preliminary inferred dielectric constants based on the predicted orbit and 5-minute averages of echo power. TIME AVG RCP AVG LCP RCP/LCP INC ANGLE DIELECTRIC (UTC, s) (10^-21 w) (10^-21 w) (deg) CONSTANT -------- ---------- ---------- ------- --------- ---------- 14370 35.838 48.586 0.738 54.82 2.490 14670 26.698 36.744 0.727 54.42 2.439 14969 23.070 26.822 0.860 54.04 2.103 15269 13.736 21.630 0.635 53.67 2.533 No echoes have been seen in the S-Band data.