PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2007-07-31 NOTE = " E-mail and other messages concerning MGS Radio Science on or about 2001/038." END_OBJECT = TEXT END From ppriest@airmail.fltops.jpl.nasa.gov Wed Feb 7 02:15 PST 2001 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.9.3/8.9.3) with SMTP id CAA01190; Wed, 7 Feb 2001 02:15:23 -0800 (PST) Received: by thorn.fltops.jpl.nasa.gov; id CAA22098; Wed, 7 Feb 2001 02:15:25 -0800 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma022047; Wed, 7 Feb 01 02:15:10 -0800 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.3+Sun/8.9.3) with ESMTP id CAA05637; Wed, 7 Feb 2001 02:15:09 -0800 (PST) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id KAA25293; Wed, 7 Feb 2001 10:15:09 GMT Date: Wed, 7 Feb 2001 10:15:09 GMT From: Patricia Priest Message-Id: <200102071015.KAA25293@mmrs.fltops.jpl.nasa.gov> DSS: 54 Apparently-To: Apparently-To: Content-Type: text Content-Length: 286 Status: RO Orbit: 8582i SOE: mm111b.04.tsoe Begin Record: 038/07:16:00 End Record: 038/07:23:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 8583i SOE: mm111b.04.tsoe Begin Record: 038/09:14:00 End Record: 038/09:21:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From ppriest@airmail.fltops.jpl.nasa.gov Wed Feb 7 10:30 PST 2001 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.9.3/8.9.3) with SMTP id KAA09582; Wed, 7 Feb 2001 10:30:57 -0800 (PST) Received: by thorn.fltops.jpl.nasa.gov; id KAA24957; Wed, 7 Feb 2001 10:30:58 -0800 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma024541; Wed, 7 Feb 01 10:30:19 -0800 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.3+Sun/8.9.3) with ESMTP id KAA19407; Wed, 7 Feb 2001 10:30:18 -0800 (PST) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id SAA25442; Wed, 7 Feb 2001 18:30:18 GMT Date: Wed, 7 Feb 2001 18:30:18 GMT From: Patricia Priest Message-Id: <200102071830.SAA25442@mmrs.fltops.jpl.nasa.gov> DSS: 25 Apparently-To: Apparently-To: Content-Type: text Content-Length: 572 Status: RO Orbit: 8584i SOE: mm111b.04.tsoe Begin Record: 038/11:12:00 End Record: 038/11:19:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 8585i SOE: mm111b.04.tsoe Begin Record: 038/13:09:00 End Record: 038/13:16:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 8586i SOE: mm111b.04.tsoe Begin Record: 038/15:07:00 End Record: 038/15:14:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 8587i SOE: mm111b.04.tsoe Begin Record: 038/17:05:00 End Record: 038/17:12:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From sami.asmar@jpl.nasa.gov Wed Feb 7 15:45 PST 2001 Received: from eis-msg-012.jpl.nasa.gov (eis-msg-012.jpl.nasa.gov [137.78.160.40]) by magellan.stanford.edu (8.9.3/8.9.3) with ESMTP id PAA02924 for ; Wed, 7 Feb 2001 15:45:10 -0800 (PST) Received: from asmar-nt (asmar-nt.jpl.nasa.gov [137.78.177.111]) by eis-msg-012.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id PAA21973 for ; Wed, 7 Feb 2001 15:45:11 -0800 (PST) Message-Id: <3.0.5.32.20010207154510.00beb100@pop.jpl.nasa.gov> X-Sender: asmar@pop.jpl.nasa.gov X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 07 Feb 2001 15:45:10 -0800 To: rsimpson@magellan.stanford.edu From: Sami Asmar Subject: Incorrect Occ Times Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Length: 2205 Status: RO Dick, Ricardo Torres has tried to convice me that this is a bias built up due to the failed reaction wheel. This sequence will end today. He is working on a fix for the next one. Sami >Date: Wed, 07 Feb 2001 13:51:12 -0800 >To: Dick Simpson 723-3525 >From: Sami Asmar >Subject: Re: URGENT: Incorrect Occ Times >In-Reply-To: <200102071833.KAA09605@magellan.stanford.edu> > > >OK Dick. I will look into this right away. > > >At 10:33 AM 2/7/2001 -0800, you wrote: >> >>Sami: >> >> There were some unusual artifacts in the data we collected >>during the past 24 hrs. I used my surface reflection software >>to take some higher resolution looks. >> >> The SOE predicted ingress occultation times (mm111b.04.tsoe) >>are in error by more than 40 secs. The spacecraft transmitter >>is switching out of occultation mode and into its standard >>telemetry configuration BEFORE in the ingress even takes place. >> >> Don't know where the error is occurring; I've not had a >>chance to check the OPTG. But I think we're losing ALL the >>occultations being collected under this SOE. >> >> See below for example SOE extract. The actual ERT for >>ingress was 15:40:21.7 >> >>Dick >> >>------------------------------------------------------------ >> >>2507;MGS;01-037/15:37:14.300; ;NOTE: Enter Planetary Atmosphere 8574; ;01-037/15:25:22.266 >>2508;MGS;01-037/15:39:40.794; ;NOTE: Enter Earth Occultation 8574; ;01-037/15:27:48.769 >>2509;MGS;01-037/15:39:40.794;45;NOTE: Loss Of X-Band Signal; ; >>2510;MGS;01-037/15:40:21.623; ;MOT 1 Telemetry Signal Path To X-Band Phase Mod On;TCM1MN;01-037/15:28:29.600 >>2511;MGS;01-037/15:40:21.623; ;MOT 2 Telemetry Signal Path To X-Band Phase Mod On;TCM2MN;01-037/15:28:29.600 >>2512;MGS;01-037/15:40:22.623; ;MOT 1 Two-Way Non-Coherent Mode Disabled;TCM12X;01-037/15:28:30.600 >>2513;MGS;01-037/15:40:22.623; ;MOT 2 Two-Way Non-Coherent Mode Disabled;TCM22X;01-037/15:28:30.600 >>2514;MGS;01-037/15:40:23.023; ;NOTE: End fixed Sub-Reflector for Radio Science; ;01-037/15:28:31.000 >>2515;MGS;01-037/15:40:23.623; ;Turn off the MOT Exciter and RPA beam;STRPAF;01-037/15:28:31.600 >> -------------------------------------------------------------------------- From joe@neptune.stanford.edu Thu Feb 15 11:48 PST 2001 Received: from neptune.Stanford.EDU (neptune [171.64.90.149]) by magellan.stanford.edu (8.9.3/8.9.3) with ESMTP id LAA08210 for ; Thu, 15 Feb 2001 11:48:53 -0800 (PST) Received: (from joe@localhost) by neptune.Stanford.EDU (8.9.3/8.9.3) id LAA09082; Thu, 15 Feb 2001 11:48:51 -0800 (PST) Message-ID: X-Mailer: XFMail 1.2 [p0] on Solaris X-Priority: 3 (Normal) Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200102151855.KAA24970@magellan.stanford.edu> Date: Thu, 15 Feb 2001 11:48:51 -0800 (PST) Sender: joe@neptune.stanford.edu From: Joe Twicken To: joe@nova.stanford.edu, rsimpson@magellan.stanford.edu, hinson@nova.stanford.edu Subject: RE: ODR Notice: /users/z19/procODR/10461844 Content-Type: text/plain; charset=us-ascii Content-Length: 1148 Status: RO (1) The 10381309.ODR recording is fine. The file names are: 10381309.ODR p 25XRXIR1R201 25XRXIC1XX01 25XR1IF1S101 25XR1IS1T101 25XR1IS1T201 25XR1IS1T301 25XR1IS1T401 25XR1IS1T501 (2) It was clear in all recordings on this date that TLM went on approximately 4 seconds before the surface occultation (3) The Allan deviation was high (8.5e-13 at 3.2 seconds) for the 10381112.ODR recording (4) There was no HGA motion compensation for these recordings On 15-Feb-01 Joe Twicken 723-3597 wrote: > 10380716.ODR p 54XRXIR1R201 54XRXIC1XX01 54XR1IF1S101 54XR1IS1T101 > 54XR1IS1T201 54XR1IS1T301 54XR1IS1T401 54XR1IS1T501 > 10380914.ODR p 54XRXIR1R201 54XRXIC1XX01 54XR1IF1S101 54XR1IS1T101 > 54XR1IS1T201 54XR1IS1T301 54XR1IS1T401 54XR1IS1T501 > 10381112.ODR p 25XRXIR1R201 25XRXIC1XX01 25XR1IF1S101 25XR1IS1T101 > 25XR1IS1T201 25XR1IS1T301 25XR1IS1T401 25XR1IS1T501 > 10381309.ODR f > 10381507.ODR p 25XRXIR1R201 25XRXIC1XX01 25XR1IF1S101 25XR1IS1T101 > 25XR1IS1T201 25XR1IS1T301 25XR1IS1T401 25XR1IS1T501 > 10381705.ODR p 25XRXIR1R201 25XRXIC1XX01 25XR1IF1S101 25XR1IS1T101 > 25XR1IS1T201 25XR1IS1T301 25XR1IS1T401 25XR1IS1T501 -------------------------------------------------------------------------- From joe@neptune.stanford.edu Fri Feb 16 15:06 PST 2001 Received: from neptune.Stanford.EDU (neptune [171.64.90.149]) by magellan.stanford.edu (8.9.3/8.9.3) with ESMTP id PAA13844 for ; Fri, 16 Feb 2001 15:06:02 -0800 (PST) Received: (from joe@localhost) by neptune.Stanford.EDU (8.9.3/8.9.3) id PAA10172; Fri, 16 Feb 2001 15:05:59 -0800 (PST) Message-ID: X-Mailer: XFMail 1.2 [p0] on Solaris X-Priority: 3 (Normal) Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Date: Fri, 16 Feb 2001 15:05:59 -0800 (PST) Sender: joe@neptune.stanford.edu From: Joe Twicken To: hinson@nova.stanford.edu Subject: Timing problem Cc: rsimpson@magellan.stanford.edu Content-Type: text/plain; charset=us-ascii Content-Length: 1059 Status: RO Dave- As you asked, it is my understanding that the following recordings were subject to the early TLM-on timing problem. Some of these timing issues were not visible in my own processing, but they were visible to Dick and his surface echo software. Occ DSS Start Time ODR 8570i DSS63 2001/037T07:45:26 10370745.ODR 8571i DSS63 2001/037T09:42:00 10370942.ODR 8571i DSS25 2001/037T09:42:00 1037094C.ODR 8574i DSS45 2001/037T15:35:00 10371535.ODR 8575i DSS45 2001/037T17:32:00 10371732.ODR 8576i DSS45 2001/037T19:30:00 10371930.ODR 8582i DSS54 2001/038T07:16:00 10380716.ODR 8583i DSS54 2001/038T09:14:00 10380914.ODR 8584i DSS25 2001/038T11:12:00 10381112.ODR 8585i DSS25 2001/038T13:09:00 10381309.ODR 8586i DSS25 2001/038T15:07:00 10381507.ODR 8587i DSS25 2001/038T17:05:00 10381705.ODR If my undertanding is incorrect, I am sure that Dick will let us know... Joe