PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM STANDARD_DATA_PRODUCT_ID = HEA DATA_SET_ID = "MEX-M-MRS-1/2/3-EXT2-2432-V1.0" PRODUCT_ID = "M00SUE0L1A_HEA_101351645_00.TXT" PRODUCT_CREATION_TIME = 2012-10-09T14:47:51.000 PRODUCER_ID = "SUE" INSTRUMENT_HOST_ID = "MEX" OBJECT = TEXT PUBLICATION_DATE = 2010-05-19 NOTE = "DSN MEX Bistatic Radar Data Report" END_OBJECT = TEXT END Miscellaneous ============= This is the first report since HEAA134A.TXT. 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 --- --- -------- -------- ---- --- -- ---- -- ----- ----- ------------ ----- 135 63 16:45:00 17:55:00 -/XR 4 3 25 16 25260 16804 A135164A.RSR 4.6 135 63 16:45:00 17:55:00 -/SR 3 3 25 16 25260 16804 A135164B.RSR 3.4 135 63 16:45:00 17:55:00 -/XL 2 3 25 16 25260 16804 A135164C.RSR 4.4 135 63 16:45:00 17:55:00 -/SL 1 3 25 16 25260 16804 A135164D.RSR 4.8 135 63 18:37:00 19:12:00 -/XR 4 3 25 16 25260 8404 A135183A.RSR 67.6 135 63 18:37:00 19:12:00 -/SR 3 3 25 16 25260 8404 A135183B.RSR 47.7 135 63 18:37:00 19:12:00 -/XL 2 3 25 16 25260 8404 A135183C.RSR 42.0 135 63 18:37:00 19:12:00 -/SL 1 3 25 16 25260 8404 A135183D.RSR 22.9 135 63 19:12:00 20:40:00 -/XR 4 3 25 16 25260 21124 A135191A.RSR 59.2 135 63 19:12:00 20:40:00 -/SR 3 3 25 16 25260 21124 A135191B.RSR 42.7 135 63 19:12:00 20:40:00 -/XL 2 3 25 16 25260 21124 A135191C.RSR 32.3 135 63 19:12:00 20:40:00 -/SL 1 3 25 16 25260 21124 A135191D.RSR 19.2 135 63 20:40:00 21:15:00 -/XR 4 3 25 16 25260 8404 A135204A.RSR 62.0 135 63 20:40:00 21:15:00 -/SR 3 3 25 16 25260 8404 A135204B.RSR 3.1 135 63 20:40:00 21:15:00 -/XL 2 3 25 16 25260 8404 A135204C.RSR 33.2 135 63 20:40:00 21:15:00 -/SL 1 3 25 16 25260 8404 A135204D.RSR 3.6 135 63 21:15:00 21:55:00 -/XR 4 3 25 16 25260 9604 A135211A.RSR 41.9 135 63 21:15:00 21:55:00 -/SR 3 3 25 16 25260 9604 A135211B.RSR 3.8 135 63 21:15:00 21:55:00 -/XL 2 3 25 16 25260 9604 A135211C.RSR 15.8 135 63 21:15:00 21:55:00 -/SL 1 3 25 16 25260 9604 A135211D.RSR 4.2 135 63 19:12:00 19:34:00 -/XR 4 4 100 16 20260 26420 A135191E.RSR 24.0 135 63 19:12:00 19:34:00 -/SR 3 4 100 16 20260 26420 A135191F.RSR 10.8 135 63 19:12:00 19:34:00 -/XL 2 4 100 16 20260 26420 A135191G.RSR 33.2 135 63 19:12:00 19:34:00 -/SL 1 4 100 16 20260 26420 A135191H.RSR 17.0 135 63 19:34:00 19:56:00 -/XR 4 4 100 16 20260 26420 A135193A.RSR 24.6 135 63 19:34:00 19:56:00 -/SR 3 4 100 16 20260 26420 A135193B.RSR 14.5 135 63 19:34:00 19:56:00 -/XL 2 4 100 16 20260 26420 A135193C.RSR 29.1 135 63 19:34:00 19:56:00 -/SL 1 4 100 16 20260 26420 A135193D.RSR 13.0 135 63 19:56:00 20:18:00 -/XR 4 4 100 16 20260 26420 A135195A.RSR 27.0 135 63 19:56:00 20:18:00 -/SR 3 4 100 16 20260 26420 A135195B.RSR 15.2 135 63 19:56:00 20:18:00 -/XL 2 4 100 16 20260 26420 A135195C.RSR 30.0 135 63 19:56:00 20:18:00 -/SL 1 4 100 16 20260 26420 A135195D.RSR 14.6 135 63 20:18:00 20:40:00 -/XR 4 4 100 16 20260 26420 A135201A.RSR 64.5 135 63 20:18:00 20:40:00 -/SR 3 4 100 16 20260 26420 A135201B.RSR 44.4 135 63 20:18:00 20:40:00 -/XL 2 4 100 16 20260 26420 A135201C.RSR 36.0 135 63 20:18:00 20:40:00 -/SL 1 4 100 16 20260 26420 A135201D.RSR 19.8 Anomalies --------- For unknown reasons, there is no ambient load measurement in the pre-cal for both X-RCP and S-RCP. It appears that the noise diode was turned on during the setup on X-RCP and at the beginning of the 25 kHz recording on S-RCP. It was only turned off after each RSR was connected to the antenna (SKY). Thus, only three of the necessary four configurations were measured during the pre-cal (SKY, SKY+ND, and AMB+ND). It should be possible to determine X-RCP system temperature from the post-cal; but the S-RCP gain changes by one dB during the post-cal, which makes those calculations more problematic. The same thing happened with S-RCP on day 106 (only three of four configurations), also at DSS 63. The S-RCP gain increases by about 0.2 during the pre-cal AMB+ND recording; this is less serious than the 1 dB change during the post-cal, but suggests that the S-RCP LNA is unstable on time scales of tens of minutes. There is no evidence of gain changes while the antenna was tracking, however. There are 0.2 dB and 0.9 dB gain reductions on S-LCP starting at about 18:50 and 19:03, respectively. The first lasts until about 19:01, when gain returns to its original level. The second recovers approximately linearly until 19:01; but this period includes MINICAL #1, which is probably rendered unusable because of the instability. There is a 2.4 dB gain loss on S-LCP over about 20:56-21:02. In this case the gain decreases slowly at first, then accelerates to about 21:01:30, when it rebounds quickly to the original level. The gain change is immediately after MINICAL #2 and may make extraction of the system temperature more difficult. The signature is very similar to a "J-shaped" gain change on day 106, also on S-LCP at DSS 63. These data appear to be of good quality otherwise. Surface echoes are visible in X-RCP, X-LCP, and S-LCP; there is no reason to doubt that S-RCP echoes (expected to be weaker) will be detected when more detailed processing is carried out. The one-way S/X ingress occultation was captured, albeit with the HGA following the specular point. The one-way X-Band egress occultation was also captured (antenna on Earth point).