PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM DATA_SET_ID = "VEX-V-VRA-1/2/3-NMP-0112-V1.0" STANDARD_DATA_PRODUCT_ID = ENB PRODUCER_ID = "SUE" PRODUCT_ID = "V00SUE0L1A_ENB_071450526_00.TXT" PRODUCT_CREATION_TIME = 2014-02-10T10:53:54.000 INSTRUMENT_HOST_ID = "VEX" OBJECT = TEXT PUBLICATION_DATE = 2009-06-03 NOTE = "VEX SUE Experimenter Notes" END_OBJECT = TEXT END From gene.goltz@jpl.nasa.gov Thu May 17 07:49:49 2007 Return-Path: Received: from nmta2.jpl.nasa.gov (nmta.jpl.nasa.gov [137.78.160.215]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4HEnnQ27600 for ; Thu, 17 May 2007 07:49:49 -0700 (PDT) Received: from xmta3.jpl.nasa.gov (xmta3.jpl.nasa.gov [137.78.160.111]) by nmta2.jpl.nasa.gov (Switch-3.2.6/Switch-3.2.6) with ESMTP id l4HEnnS4013992; Thu, 17 May 2007 07:49:49 -0700 Received: from ggoltz-xp.jpl.nasa.gov (ggoltz-2k.jpl.nasa.gov [137.78.78.47]) by xmta3.jpl.nasa.gov (Switch-3.2.6/Switch-3.2.6) with ESMTP id l4HEnmtm027425; Thu, 17 May 2007 07:49:48 -0700 Message-Id: <6.2.0.14.2.20070516094614.0389aa48@mail.jpl.nasa.gov> X-Mailer: QUALCOMM Windows Eudora Version 6.2.0.14 Date: Wed, 16 May 2007 09:55:52 -0700 To: sami Asmar From: Gene Goltz Subject: VEX RS Supports, 25 May 2007 Cc: Dick Simpson 650-723-3525 , Daniel.S.Kahan@jpl.nasa.gov Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=====================_708325234==.ALT" X-Source-IP: ggoltz-2k.jpl.nasa.gov [137.78.78.47] X-Source-Sender: gene.goltz@jpl.nasa.gov X-AUTH: Authorized Content-Length: 4580 Status: R --=====================_708325234==.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed Sami, Below are the Venus Express (VEX) Radio Science activities scheduled for RSSG support on Friday, 25 May 2007. The information was extracted from DSN Keword File vd018a.00.dkf, and shows RS supports as follows: - DOY 145, 21:23 to 01:13, DSS-43, pass 0501 (Occultation) - Gene FRIDAY/0501 ============================================================ ! 248 43 00001 145 042000 TRK D43 SPEC ADVISORY [BEGIN PRE-CAL; @ ACTIVITY: OCCULTATION] ! 248 43 00021 145 052000 TRK D43 BOT ! 248 43 00022 145 052000 TRK D43 ACQ D/L, 1-WAY, S/CH. 17 ! 248 43 00024 145 052000 TRK D43 ACQ D/L, 1-WAY, X/CH. 17 ! 248 43 00026 145 053924 TRK D43 BEGIN RAD SCI ! 248 43 00027 145 053924 TRK D43 BEGIN SR FIXED ! 248 43 00028 145 055424 TRK D43 ENTER PLNT ATM, VENUS ! 248 43 00029 145 055435 TRK D43 LOS, S/CH. 17 ! 248 43 00030 145 055435 TRK D43 LOS, X/CH. 17 ! 248 43 00031 145 055435 TRK D43 ENTER OCC, VENUS ! 248 43 00041 145 063949 TRK D43 ACQ D/L, 1-WAY, S/CH. 17 ! 248 43 00043 145 063949 TRK D43 ACQ D/L, 1-WAY, X/CH. 17 ! 248 43 00045 145 063949 TRK D43 EXIT OCC, VENUS ! 248 43 00046 145 064016 TRK D43 EXIT PLNT ATM, VENUS ! 248 43 00048 145 065016 TRK D43 END SR FIXED ! 248 43 00049 145 065016 TRK D43 END RAD SCI ! 248 43 00050 145 070503 TRK D43 LOS, X/CH. 17 ! 248 43 00051 145 070503 TRK D43 LOS, S/CH. 17 ! 248 43 00054 145 071000 TRK D43 EOT ------------------------------------------------------------------- From rsimpson Thu May 17 08:27:56 2007 Return-Path: Received: (from rsimpson@localhost) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) id l4HFRtF06288; Thu, 17 May 2007 08:27:55 -0700 (PDT) Date: Thu, 17 May 2007 08:27:55 -0700 (PDT) From: Dick Simpson 650-723-3525 Message-Id: <200705171527.l4HFRtF06288@magellan.stanford.edu> To: Bernd.Haeusler@unibw.de Subject: Re: [Fwd: DSN predicts] Cc: daniel.s.kahan@jpl.nasa.gov, gene.goltz@jpl.nasa.gov, rsimpson, sami.asmar@jpl.nasa.gov Content-Length: 1654 Status: R >I attach our Doppler predicts for the upcoming DSN pass (VEX orbit >399-occultation). Please let me know how close we are this time.. Bernd: If I understand your tables, the maximum effect of the atmosphere at X-Band will be about -64 kHz and +40 kHz (multiply Column 5 by 8.4E09 and look for the extreme values). That is about 10 times the effect we observed on day 127 (+/-7.5 kHz). Column 1 in the table is modified Julian daya number; it runs from 2700.745 to 2700.779. That's 0.034 days, which matches the simulation time (2932 seconds) in Column 2. So the duration of the occultation is perhaps a little longer. Is this occultation closer to diametric, so the frequency changes are more extreme? I notice that the time between maximum negative Doppler and maximum positive Doppler is only about 5 minutes (and the offsets are not symmetrical). On day 127, the frequency profile looked very close to a sinusoid with about 15 minutes between the positive and negative peaks. If this is true, then Sami's group should either use a much higher sampling rate (250 kHz) or make sure that the RSR predicts are based on a model that includes a correction for the atmosphere. The DSN keyword file that Gene Goltz received shows both S- and X-Band being ON. But on day 127, they were unable to find the S-Band signal. Do you know whether S-Band operation has been suspended? If so, perhaps they should not even try to find it. But, if it continues to operate at -15 dB, perhaps there would still be enough signal to make some useful measurements at the high altitudes. Regards, Dick -------------------------------------------------------------------- From rsimpson Thu May 17 08:29:17 2007 Return-Path: Received: (from rsimpson@localhost) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) id l4HFTHv06558; Thu, 17 May 2007 08:29:17 -0700 (PDT) Date: Thu, 17 May 2007 08:29:17 -0700 (PDT) From: Dick Simpson 650-723-3525 Message-Id: <200705171529.l4HFTHv06558@magellan.stanford.edu> To: gene.goltz@jpl.nasa.gov Subject: Re: VEX RS Supports, 25 May 2007 Cc: Daniel.S.Kahan@jpl.nasa.gov, rsimpson, sami.asmar@jpl.nasa.gov Content-Length: 306 Status: R You should have frequency predicts sent by Bernd. If not, check with Sami, or I can forward my copy. I have some questions about his numbers (message a few minutes ago). If the RSSG predictions are running with a Venus atmosphere included, perhaps you can check his fgures against yours. Thanks, Dick --------------------------------------------------------------------- From Bernd.Haeusler@unibw.de Fri May 18 04:07:04 2007 Return-Path: Received: from OrangeSrv.rz.unibw-muenchen.de (orangesrv.RZ.UniBw-Muenchen.de [137.193.10.40]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4IB71Q16493 for ; Fri, 18 May 2007 04:07:01 -0700 (PDT) Received: from localhost (OrangeSrv.rz.unibw-muenchen.de [127.0.0.1]) by OrangeSrv.rz.unibw-muenchen.de (8.13.7/8.13.6) with ESMTP id l4IB6ueA021168; Fri, 18 May 2007 13:06:56 +0200 Received: from OrangeSrv.rz.unibw-muenchen.de ([127.0.0.1]) by localhost (OrangeSrv.rz.unibw-muenchen.de [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 21069-02; Fri, 18 May 2007 13:06:52 +0200 (CEST) Received: from [137.193.79.7] (Ampte.LRT.UniBw-Muenchen.de [137.193.79.7]) by OrangeSrv.rz.unibw-muenchen.de (8.13.7/8.13.7) with ESMTP id l4IB6RAp021128; Fri, 18 May 2007 13:06:28 +0200 X-Remarks: If SPAM is relayed via OrangeSrv.rz.unibw-muenchen.de to outside of unibw-muenchen.de, please report it to abuse@unibw-muenchen.de Message-ID: <464D88B4.1020706@unibw.de> Date: Fri, 18 May 2007 13:06:28 +0200 From: =?ISO-8859-15?Q?Bernd_H=E4usler?= Reply-To: Bernd.Haeusler@unibw.de Organization: UniBw User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 To: Dick Simpson 650-723-3525 CC: daniel.s.kahan@jpl.nasa.gov, gene.goltz@jpl.nasa.gov, sami.asmar@jpl.nasa.gov, Stefan Remus , Riccardo Mattei Subject: Re: [Fwd: DSN predicts] References: <200705171527.l4HFRtF06288@magellan.stanford.edu> In-Reply-To: <200705171527.l4HFRtF06288@magellan.stanford.edu> Content-Type: multipart/mixed; boundary="------------010908010208060603030108" X-Virus-Scanned: by amavisd-new at OrangeSrv.rz.unibw-muenchen.de Content-Length: 157128 Status: RO This is a multi-part message in MIME format. --------------010908010208060603030108 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Dick Simpson 650-723-3525 schrieb: >> I attach our Doppler predicts for the upcoming DSN pass (VEX orbit >> 399-occultation). Please let me know how close we are this time.. >> > > Bernd: > > If I understand your tables, the maximum effect of the atmosphere > at X-Band will be about -64 kHz and +40 kHz (multiply Column 5 by > 8.4E09 and look for the extreme values). That is about 10 times > the effect we observed on day 127 (+/-7.5 kHz). > This is correct > Column 1 in the table is modified Julian daya number; it runs from > 2700.745 to 2700.779. That's 0.034 days, which matches the > simulation time (2932 seconds) in Column 2. So the duration of > the occultation is perhaps a little longer. > > Is this occultation closer to diametric, so the frequency changes > are more extreme? I notice that the time between maximum negative > Doppler and maximum positive Doppler is only about 5 minutes (and > the offsets are not symmetrical). On day 127, the frequency > profile looked very close to a sinusoid with about 15 minutes > between the positive and negative peaks. > We are having the deepest ocultations around orbit 400. So orbit 399 is indeed one the toughest orbit one can imagine for doing radio occultations. I attach a plot showing this. The non-symmetry is the result of orbit dynamics influencing the atmospheric Doppler. > If this is true, then Sami's group should either use a much higher > sampling rate (250 kHz) or make sure that the RSR predicts are > based on a model that includes a correction for the atmosphere. > My personal feeling is we should try to include the atmospheric correction in the receiver tuning. We trust our calculations. When saying this I hope that the timing/orbit information DSN has received from ESA is very precise and up to date. Our simulations are based on the most accurate orbit file we can get from ESA, but we know it is old and - what absolute timing is concerned- not too precise. The orbit itself is very accurately, however. So may be Sami and his group will decide that one is on the safer side by increasing the sampling rate only. I of course concur with any decision you will make. There is also another aspect we need to consider: The total losses in the center part of the occultation will add up to approx. 85 dB! So even with the 70 m DSN, the signal will be lost in the center part of the occultation. But it will come back! I attach a plot showing the losses. > The DSN keyword file that Gene Goltz received shows both S- and > X-Band being ON. But on day 127, they were unable to find the > S-Band signal. Do you know whether S-Band operation has been > suspended? If so, perhaps they should not even try to find it. > But, if it continues to operate at -15 dB, perhaps there would > still be enough signal to make some useful measurements at the > high altitudes. > I was inquiring several days ago at ESOC that they should leave the S-band transmitter on. Because we still can get data of some scientific value. I was informed, and this was also a decision of a MRB which was held the day before yesterday, that the S-band transmitter will not be powered as long as there is no clue what happened on board. They want to protect the transponder, what I understand. (However, the transmitters are already individually protected by circulators at the output stage.) So until further notice there will be no S-band signal coming from VEX. Regards Bernd > Regards, > Dick > > No virus found in this outgoing message Checked by PC Tools AntiVirus (3.1.0.17 - 9.075.006). http://www.pctools.com/free-antivirus/ --------------010908010208060603030108 Content-Type: application/msword; name="Occultation Seasons.doc" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="Occultation Seasons.doc" 0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAABAAAAUwAAAAAA AAAAEAAAVQAAAAEAAAD+////AAAAAFIAAAD///////////////////////////////////// ... ---------------------------------------------------------------------- From rsimpson Fri May 18 08:31:51 2007 Return-Path: Received: (from rsimpson@localhost) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) id l4IFVpl01310; Fri, 18 May 2007 08:31:51 -0700 (PDT) Date: Fri, 18 May 2007 08:31:51 -0700 (PDT) From: Dick Simpson 650-723-3525 Message-Id: <200705181531.l4IFVpl01310@magellan.stanford.edu> To: Bernd.Haeusler@unibw.de Subject: Re: [Fwd: DSN predicts] Cc: Riccardo.Mattei@unibw-muenchen.de, Stefan.Remus@unibw-muenchen.de, daniel.s.kahan@jpl.nasa.gov, gene.goltz@jpl.nasa.gov, rsimpson, sami.asmar@jpl.nasa.gov Content-Length: 2094 Status: R >We are having the deepest ocultations around orbit 400. So orbit 399 is >indeed one the toughest orbit one can imagine for doing radio >occultations. I attach a plot showing this. Thanks. >So may be Sami and his group will >decide that one is on the safer side by increasing the sampling rate >only. I think we should go with 250 kHz if there is no atmpospheric correction in the tuning predicts, and we should use 25 kHz if an atmosphewric correction is included in the predicts AND the predicted offsets are similar to yours. >There is also another aspect we need to consider: The total losses in >the center part of the occultation will add up to approx. 85 dB! So >even with the 70 m DSN, the signal will be lost in the center part of >the occultation. But it will come back! And it will be lost later and reappear earlier with the 70-m antenna. That is the primary reason we are doing THIS experiment. Orbit 399 may be the deepest penetration of the Venus atmosphere ever obtained using radio occultation. >I was inquiring several days ago at ESOC that they should leave the >S-band transmitter on. Because we still can get data of some scientific >value. I was informed, and this was also a decision of a MRB which was >held the day before yesterday, that the S-band transmitter will not be >powered as long as there is no clue what happened on board. They want to >protect the transponder, what I understand. (However, the transmitters >are already individually protected by circulators at the output stage.) >So until further notice there will be no S-band signal coming from VEX. I can understand their concern; even with the individual protections, you don't want to add unnecessary risk to the mission. So Gene and Danny can LOOK for an S-Band signal, but there is no expectation that they will find anything. Assuming nothing is found visually, we will not attempt to play back any of the S-Band data from the station or transfer any S-Band files to Stanford. This reduces the data processing load significantly. Thanks, Dick --------------------------------------------------------------------------- From Gary.Whitehead@esa.int Mon May 21 06:44:18 2007 Return-Path: Received: from esacom89-int.esoc.esa.int (esacom89-ext.esoc.esa.int [131.176.86.4]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4LDiCQ16737 for ; Mon, 21 May 2007 06:44:13 -0700 (PDT) Received: from esacom53.esoc.esa.int (131-176-86-254.esoc.esa.int [131.176.86.254]) by esacom89-int.esoc.esa.int (8.13.3/8.13.3/ESA-External-v4.0) with ESMTP id l4LDi7rZ025258; Mon, 21 May 2007 13:44:08 GMT Received: from esocmta1.esa.int (esocnotesadmin-a.esoc.esa.int [131.176.72.27]) by esacom53.esoc.esa.int (8.12.10/8.12.10/ESA-Internal-v3.2) with ESMTP id l4LDi2Xp001701; Mon, 21 May 2007 13:44:02 GMT To: dwight.p.holmes@jpl.nasa.gov Cc: rsimpson@magellan.stanford.edu, Octavio.Camino@esa.int, Ignacio.Tanco@esa.int, John.Reynolds@esa.int Subject: S-Band testing over DSN during Friday's RSI pass. MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.3 September 14, 2004 From: Gary.Whitehead@esa.int Message-ID: Date: Mon, 21 May 2007 15:43:59 +0200 X-MIMETrack: Serialize by Router on esocmta1/esoc/ESA at 05/21/2007 15:44:01, Serialize complete at 05/21/2007 15:44:01 Content-Type: multipart/alternative; boundary="=_alternative 004B6E25C12572E2_=" Content-Length: 4235 Status: RO This is a multipart message in MIME format. --=_alternative 004B6E25C12572E2_= Content-Type: text/plain; charset="US-ASCII" Hi Dwight, As you are aware we have an S-Band problem on VEX that is currently under investigation. Our belief is that the problem lies between the final switch and the HGA1 feed. To confirm this it would be useful to measure the levels seen on ground from S-band via the LGA. As you are also aware we have stopped using the S-Band via HGA1 until we have fully characterised the problem and decided the safe way forward. Were we to illuminate our LGA antenna during the pass on DOY 145, would you be able to detect the signal and report whether you see the expected levels to us? (The signal will unfortunately be non coherent and not using the USO). If possible, we would also like to repeat the test using the other transmitter on DOY 147 (which will be clocked via the USO along with the X-Band downlink). Our apologies for the late notice, this was raised as a test during an MRB at the end of last week. Best Regards, Gary Whitehead. ------------------------ Gary Whitehead VEX Spacecraft Operations Engineer Spacecraft Operations Engineering Services, OPS-OPV. C/o European Space Operations Centre, Robert Bosch Strasse 5, 64293 Darmstadt, Germany. Tel: +49-6151-90-2530 Fax: +49-6151-90-2161 VEGA IT GmbH, Europaplatz 5, 64293 Darmstadt, Germany Darmstadt: HRB-No. 4096 Managing Directors: Philip Cartmell, Susan Bygrave, John Lewis, Robert Rouse ------------------------------------------------------------------------- From Gary.Whitehead@esa.int Mon Jun 4 08:01:34 2007 Return-Path: Received: from esacom89-int.esoc.esa.int (esacom89-ext.esoc.esa.int [131.176.86.4]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l54F1XQ03627 for ; Mon, 4 Jun 2007 08:01:33 -0700 (PDT) Received: from esacom53.esoc.esa.int (131-176-86-254.esoc.esa.int [131.176.86.254]) by esacom89-int.esoc.esa.int (8.13.3/8.13.3/ESA-External-v4.0) with ESMTP id l54F1IZc023277; Mon, 4 Jun 2007 15:01:26 GMT Received: from esocmta1.esa.int (esocnotesadmin-a.esoc.esa.int [131.176.72.27]) by esacom53.esoc.esa.int (8.12.10/8.12.10/ESA-Internal-v3.2) with ESMTP id l54F17sp021060; Mon, 4 Jun 2007 15:01:07 GMT To: dwight.p.holmes@jpl.nasa.gov Cc: rsimpson@magellan.stanford.edu, Octavio.Camino@esa.int, Ignacio.Tanco@esa.int, John.Reynolds@esa.int, Wolfgang.Hell@esa.int Subject: S-Band testing over DSN. MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.3 September 14, 2004 From: Gary.Whitehead@esa.int Message-ID: Date: Mon, 4 Jun 2007 17:01:04 +0200 X-MIMETrack: Serialize by Router on esocmta1/esoc/ESA at 06/04/2007 17:01:12, Serialize complete at 06/04/2007 17:01:12 Content-Type: multipart/alternative; boundary="=_alternative 00524CE1C12572F0_=" Content-Length: 3657 Status: RO This is a multipart message in MIME format. --=_alternative 00524CE1C12572F0_= Content-Type: text/plain; charset="US-ASCII" Hi Dwight, Thanks for the effort taken over the last weekend to measure our downlink signal, the value from DOY 145 appeared to be nominal (supporting our belief that the problem is in the harness, not the transponder). Our MOC did not note down the AGC level for DOY 147 - could you please ask someone to retrieve it from your logs and pass the value on to me. We would like to repeat the test during the OCC pass on the 9th - this time we will be using a different antenna (which will allow us to confirm nominal operation of the rest of the harness). Would your people be able to support an AGC measurement of S-Band during this pass in the same manner as before? Best Regards, Gary. ------------------------ Gary Whitehead VEX Spacecraft Operations Engineer Spacecraft Operations Engineering Services, OPS-OPV. C/o European Space Operations Centre, Robert Bosch Strasse 5, 64293 Darmstadt, Germany. Tel: +49-6151-90-2530 Fax: +49-6151-90-2161 VEGA IT GmbH, Europaplatz 5, 64293 Darmstadt, Germany Darmstadt: HRB-No. 4096 Managing Directors: Philip Cartmell, Susan Bygrave, John Lewis, Robert Rouse ----------------------------------------------------------------------- From Daniel.S.Kahan@jpl.nasa.gov Sun May 27 00:25:09 2007 Return-Path: Received: from nmta2.jpl.nasa.gov (nmta.jpl.nasa.gov [137.78.160.215]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4R7P3Q01367; Sun, 27 May 2007 00:25:08 -0700 (PDT) Received: from xmta3.jpl.nasa.gov (xmta3.jpl.nasa.gov [137.78.160.111]) by nmta2.jpl.nasa.gov (Switch-3.2.6/Switch-3.2.6) with ESMTP id l4R7P0e5019891; Sun, 27 May 2007 00:25:00 -0700 Received: from [127.0.0.1] (pc04160143905.jpl.nasa.gov [137.78.78.85]) by xmta3.jpl.nasa.gov (Switch-3.2.6/Switch-3.2.6) with ESMTP id l4R7OueK016750; Sun, 27 May 2007 00:24:58 -0700 Message-ID: <46593248.1070400@jpl.nasa.gov> Date: Sun, 27 May 2007 00:24:56 -0700 From: Danny Kahan User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 To: Bernd.Haeusler@unibw.de, rsimpson@magellan.stanford.edu CC: paetzold@geo.Uni-Koeln.DE, gene.goltz@jpl.nasa.gov, riccardo.mattei@unibw-muenchen.de, silvia@magellan.stanford.edu, Stefan.Remus@unibw.de, sami.asmar@jpl.nasa.gov Subject: Result of VEX 27 May Occultation Content-Type: multipart/mixed; boundary="------------010807090001010704010608" X-Source-IP: pc04160143905.jpl.nasa.gov [137.78.78.85] X-Source-Sender: Daniel.S.Kahan@jpl.nasa.gov X-AUTH: Authorized Content-Length: 30779 Status: RO This is a multi-part message in MIME format. --------------010807090001010704010608 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit The occultation was recorded successfully at DSS-43. The X-band signal showed similar behavior to the occultation on DOY 145 (3rd plot). Again, the 16-kHz recording should be optimal. I found a weak S-band signal about -39300 Hz from the predicts, and drifting. Although the X-band signal disappeared about 8 minutes into the occultation, the S-band signal (~25 dB-Hz) remained visible the entire time. During the most dynamic part of the Doppler shift, it was necessary to readjust the frequency offset for S-band to -76800 Hz. Due to the sudden shift in the residual, the 100-kHz recording will be necessary to see this signal throughout the entire period. The first plot shows the S-band FFT display (during the occultation), and the second plot shows the change in residual at the time of ingress. It was impossible to discern the times of ingress or egress from the S-band power plot; if anything, it may have increased in strength during the occultation. Best regards, Danny --------------010807090001010704010608 Content-Type: APPLICATION/octet-stream; name="0x1280083_060708.png" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="0x1280083_060708.png" iVBORw0KGgoAAAANSUhEUgAAApgAAAFxCAMAAADgTCgsAAADAFBMVEX///8AAAD6+tKussOy TXqXQWfcrcJXJTv///+ussOTl6Xc3uVdYGkAAABjY5xUVIS3t9EvL0r/////9+nY0cbMxbqZ ... ---------------------------------------------------------------------------- From wcchen@jftl.jpl.nasa.gov Fri May 25 09:05:50 2007 Return-Path: Received: from jftl.jpl.nasa.gov (jftl.jpl.nasa.gov [128.149.207.22]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4PG5oQ20032 for ; Fri, 25 May 2007 09:05:50 -0700 (PDT) Received: from jftl.jpl.nasa.gov (Not Verified[128.149.207.21]) by jftl.jpl.nasa.gov with MailMarshal (v6,1,8,2137) id ; Fri, 25 May 2007 09:05:50 -0700 Received: by jftl-mm.jpl.nasa.gov with Internet Mail Service (5.5.2657.72) id ; Fri, 25 May 2007 09:05:56 -0700 Message-ID: <1BC11B253650844DB8D9E9F01C021F5C0198AC01@jftl-mm.jpl.nasa.gov> From: "Chen, Wilson C" To: rsimpson@magellan.stanford.edu Cc: DSN-RMDCT , rmdc@zeus.jpl.nasa.gov Subject: 248 RMDC RS Delivery Date: Fri, 25 May 2007 09:05:53 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C79EE6.924FE400" Content-Length: 4704 Status: RO This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C79EE6.924FE400 Content-Type: text/plain Tracking data for spacecraft 248 (VEX) Comments: RMDCT delivery to VEX-RS 1-sec Doppler compression time Two Occultation files have been processed and delivered to: OSCARX:/ftp/ras/sc248/odfs/07145O145_43X_1s.SC248 OSCARX:/ftp/ras/sc248/odfs/07145O145_43S_1s.SC248 Regards, Wilson Chen RMDC 626-305-6269 --------------------------------------------------------------------------- From wcchen@jftl.jpl.nasa.gov Fri May 25 09:07:33 2007 Return-Path: Received: from jftl.jpl.nasa.gov (jftl.jpl.nasa.gov [128.149.207.22]) by magellan.stanford.edu (8.11.7p3+Sun/8.11.7) with ESMTP id l4PG7XQ20040 for ; Fri, 25 May 2007 09:07:33 -0700 (PDT) Received: from jftl.jpl.nasa.gov (Not Verified[128.149.207.21]) by jftl.jpl.nasa.gov with MailMarshal (v6,1,8,2137) id ; Fri, 25 May 2007 09:07:33 -0700 Received: by jftl-mm.jpl.nasa.gov with Internet Mail Service (5.5.2657.72) id ; Fri, 25 May 2007 09:07:39 -0700 Message-ID: <1BC11B253650844DB8D9E9F01C021F5C0198AC02@jftl-mm.jpl.nasa.gov> From: "Chen, Wilson C" To: "Chen, Wilson C" , "'rsimpson@magellan.stanford.edu'" Cc: DSN-RMDCT , "'rmdc@zeus.jpl.nasa.gov'" Subject: RE: 248 RMDC RS Delivery Date: Fri, 25 May 2007 09:07:37 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C79EE6.D0592FB0" Content-Length: 6652 Status: RO This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C79EE6.D0592FB0 Content-Type: text/plain Please note, only one way data was received. _____ From: Chen, Wilson C Sent: Friday, May 25, 2007 9:06 AM To: rsimpson@magellan.stanford.edu Cc: DSN-RMDCT; rmdc@zeus.jpl.nasa.gov Subject: 248 RMDC RS Delivery Tracking data for spacecraft 248 (VEX) Comments: RMDCT delivery to VEX-RS 1-sec Doppler compression time Two Occultation files have been processed and delivered to: OSCARX:/ftp/ras/sc248/odfs/07145O145_43X_1s.SC248 OSCARX:/ftp/ras/sc248/odfs/07145O145_43S_1s.SC248 Regards, Wilson Chen RMDC 626-305-6269