From Dave.DelRizzo@hia.nrc.ca Thu Oct 28 02:04:46 1999 Return-Path: Received: from perseus.vsop.isas.ac.jp (vsop.isas.ac.jp) by orihime.isaslan1.isas.ac.jp (4.1/SMI-4.1) id AA07585; Thu, 28 Oct 99 02:04:45 JST Received: from virgo.drao.nrc.ca (virgo.drao.nrc.ca [192.139.21.66]) by perseus.vsop.isas.ac.jp (8.8.5+2.7Wbeta5/3.5Wpl7) with ESMTP id CAA08381; Thu, 28 Oct 1999 02:04:42 +0900 (JST) Received: from hia.nrc.ca (vsop3.drao.nrc.ca [192.139.21.14]) by virgo.drao.nrc.ca (8.8.6/8.8.6/virgo.mc Revision: 1.12) with ESMTP id JAA38446; Wed, 27 Oct 1999 09:58:21 -0700 Message-Id: <3817320F.4EF7B2F5@hia.nrc.ca> Date: Wed, 27 Oct 1999 10:10:39 -0700 From: David Del Rizzo Organization: DRAO/University of Calgary X-Mailer: Mozilla 4.51 [en] (WinNT; U) X-Accept-Language: en Mime-Version: 1.0 To: VSOP Survey Operations Group , Bill Scott Cc: John Reynolds , Tasso Tzioumis , University of Tasmania VLBI Account , QZH , Igor Molotov , Deep Space Network , Kevin Miller , Kenta Fujisawa , Dave Del Rizzo Subject: VS10y PI letter Content-Type: multipart/mixed; boundary="------------EB9F4E99B2E5381D2F59D736" Status: RO This is a multi-part message in MIME format. --------------EB9F4E99B2E5381D2F59D736 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Greetings, Please find attached a copy of the PI letter for experiment VS10y (June 4, 99). Cheers, dave -- __ * David Del Rizzo / \ * S2 Correlator Operations / \ VSOP Project || _ | || / | Dominion Radio Astrophysical Observatory /\\ / P.O. Box 248, / |\\__/ Penticton, B.C., V2A 6K3 | | Dave.DelRizzo@hia.nrc.ca http://www.drao.nrc.ca/~delrizzo/Welcome.shtml --------------EB9F4E99B2E5381D2F59D736 Content-Type: text/plain; charset=us-ascii; name="VS10y.piletter" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="VS10y.piletter" ========================================================================== PI INFORMATION LETTER FROM PENTICTON S2 CORRELATOR FOR EXPERIMENT VS10y ========================================================================== PI: The VSOP Survey Program, Hirabayashi Lab. Address: Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 JAPAN Phone: 81-427-59-8340 EMAIL: vsog@vsop.isas.ac.jp Fax: 81-427-59-8340 Dear PI: This letter is to inform you of some of the details of the correlation and analysis of your experiment 'VS10y'. Your contact person at the correlator is: David Del Rizzo Tel: (250) 493-2277 Fax: (250) 493-7767 email: Dave.DelRizzo@hia.nrc.ca and is the person who correlated your experiment. You can also contact the University of Calgary Radio Astronomy Lab for assistance with data reduction and imaging using AIPS and DIFMAP. The data package that we are sending you contains this letter and the FITS data tape in the format requested in the VS10y.sum file. Additionally, there are a number of files on the University of Calgary ftp server that will be of interest to you. All files are available via anonymous ftp, with the exception of the .dqa1 and .gz files, which are restricted access only. These files include: VS10y_DQA1.txt -- ASCII *summary* file of single baseline fringe search results. VS10y.dqa1 -- ASCII file of single baseline fringe search results. VS10y.ps -- postscript plot of experiment station playback times. VS10y_DQA1.ps.gz -- gzipped postscript file of plots of single baseline fringe search results. This includes plots of phase cal extracted at the correlator and available in your FITS data. VS10y.log -- log file generated by the correlator. VS10y.comments -- comments extracted from station log files. VS10y.tsys -- Tsys data extracted from station log files. This is not formatted to read into AIPS but is provided as auxillary information if Tsys files are not otherwise available. In addition, since this is Space VLBI data there may be times when delay discontinuities occur on space baselines (VSOP_SC) -- due to tracking station handovers and 'clock setting events' at individual tracking stations resulting from momentary loss of downlink lock. These will show up as glitches or delay jumps in the VSOP_SC phase cal data and in the fringe fits results. For convenience, all times across which fringe fitting should not be done are at the end of this file in a format ready to be read in by AIPS' INDXR. The tracking passes are as follows: 'MADRD_TS' 1999-155-12:42:37 --> 1999-155-15:14:33 'USUDA_TS' 1999-155-07:16:30 --> 1999-155-09:07:21 ...and periods of downlink loss are as follows: 155-08:48:21.000 -> 155-08:57:00.000 155-09:07:18.710 -> 155-12:54:41.000 155-15:02:41.810 -> 155-15:05:01.300 You will have approximately 3 weeks from today (Wed Oct 27 09:40:35 PDT 1999) to look at the data and request recorrelation if there is a problem. Recorrelation requests will only be *considered* if the data is bad and it can be traced to the correlator or if there is a valid scientific reason (such as a change of correlation parameters or change of source coordinates). PLEASE LOOK AT THE DATA AS SOON AS POSSIBLE SINCE YOUR FEEDBACK TO THE MISSION IS IMPORTANT. Please contact the UofC RAL as soon as you are satisfied with the data so that re-cycling of VLBI tapes can occur with your input in a timely manner. If the data is bad or not scientifically acceptable due to problems at acquisition time, you must contact the VSOG to request re-observation of the radio source. If the data is good, then in accordance with mission policy, 18 months after it is released from the correlator, it will be available to any PI on a request basis. Good luck with your data! ================================= Correlator PR/Data analyst notes: ================================= - Fringes detected to Hobart, Mopra and Shanghai - No space fringes detected during RZ or UZ tracking passes. Searched with a +/-2, +/-1 and 0s offsets to eliminate the possibility of operator error. The search window used was +/- 64us (2048 lags). The experiment was correlated with 0s offset. - No fringes detected to Evpatoria on any baseline by our dqa1 software. Evpatoria channel 2 showed all 1's in the stream statistics output - data from channel 2 was unuseable. Stream statistics for channel 1 were originally skewed, forcing the correlation of Evpatoria to be with 1 bit (2 level) quantization. A +12us offset (maser leads) was used as reported from Evpatoria. - The clock model adjustment for Shanghai was -2.4us from reported value. Your FITS tape(s) incl: XX FITS files, NNN bytes total Participating GRTS: xx, xx, ... ================== POINTS OF CONTACT: ================== ---Correlator--- Operations email: vlbiop@hia.nrc.ca Operations Manager (Sean Dougherty): Sean.Dougherty@hia.nrc.ca Tel: (250) 493-2277 (~16:00 to 24:00 UT) Fax: (250) 493-7767 Web: http://www.drao.nrc.ca Anonymous ftp: ftp.drao.nrc.ca /pub/vsop Address: Attn: Space VLBI Dominion Radio Astrophysical Observatory Hertzberg Institute of Astrophysics National Research Council of Canada White Lake Road (P.O. Box 248) Penticton, B.C. Canada V2A 6K3 ---University of Calgary RAL--- Bill Scott: bill@ras.ucalgary.ca Russ Taylor: russ@ras.ucalgary.ca Tel: (403) 220-7424 Fax: (403) 289-3331 Web: http://www.ras.ucalgary.ca ftp: cougar.ras.ucalgary.ca public directories: /pub/vsop/ restricted directories: /usr/home/vsopobs/vsop/ (contact Bill Scott for restricted access permissions) Address: Attn: Bill Scott/Russ Taylor Physics and Astronomy Department University of Calgary 2500 University Dr. NW, Calgary, Alberta, Canada T2N 1N4 ---The VSOG (VSOP Science Operations Group)--- email: vsog@vsop.isas.ac.jp S2 Scheduler: Ian Avruch (avruch@halca.vsop.isas.ac.jp) Tel: +81-427-59-8346 (8am to 6pm JST) Fax: +81-427-69-8949 Web: http://www.vsop.isas.ac.jp (Web site contains schedule information, experiment status details, HALCA calibration data and data reduction info.) Address: ISAS, 3-1-1 Yoshinodai, Sagamihara Kanagawa 229, Japan ---AIPS/Data Reduction--- VSOP Data Reduction Exploder (VDR): vdr@aoc.nrao.edu -- for general help and exchange of information regarding VSOP data reduction. 'Designated AIP': daip@aoc.nrao.edu -- for reporting bugs in AIPS. ! ! Start of Formatted entries for input to AIPS' INDXR. ! These epochs are times across which fringe fitting should not be done. ! They include all tracking station handovers and clock setting events. ! SUBARRAY = 1 / 155 08:48:21.000 155 09:07:18.710 155 15:02:41.810 / --------------EB9F4E99B2E5381D2F59D736--