Subject: Planning for Crab calibration (fwd) >From pkretsch@rssd.esa.int Tue Mar 1 15:29:39 2005 Return-Path: X-Original-To: nl@dsri.dk Delivered-To: nl@dsri.dk Received: from uhuru.dsri.dk (localhost [127.0.0.1]) by localhost.dsri.dk (Postfix) with ESMTP id C2ED53E01F7 for ; Tue, 1 Mar 2005 15:29:38 +0100 (MET) Received: from dkcphmx02.softcom.dk (dkcphmx02.softcom.dk [213.150.40.146]) by uhuru.dsri.dk (Postfix) with ESMTP id 7BE8A3E01E5 for ; Tue, 1 Mar 2005 15:29:38 +0100 (MET) Received: (qmail 14383 invoked by uid 104); 1 Mar 2005 14:29:38 -0000 Received: from 194.51.201.22 by dkcphmx02.softcom.dk (envelope-from ). tag softscan110968737665010014217 (clamscan: 0.83. trend: 7.510-1002/456/91556. avp: 4.0.3.0. spamassassin: 3.0.1. Processed in 1.508575 secs); 01 Mar 2005 14:29:38 -0000 X-SoftScan-Settings: Virus=2, SPAM=2, Paranoid=2 (0=disabled, 1=tag, 2=quarantine, 3=forward) X-Spam-Status: No, hits=0.3 X-Virus-Status: No, clean X-Paranoid-Status: No, hits=0 required=25.00 Received: from unknown (HELO esa-av-smtp1.gmessaging.net) (194.51.201.22) by dkcphmx02.softcom.dk with SMTP; 1 Mar 2005 14:29:36 -0000 Received: from esa-spas2.gmessaging.net (relay [172.24.21.38]) by esa-av-smtp1.gmessaging.net (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0ICO00ASVG9686@esa-av-smtp1.gmessaging.net> for nl@dsri.dk; Tue, 01 Mar 2005 15:29:30 +0100 (MET) Received: from localhost (esa-spas2 [127.0.0.1]) by esa-spas2.gmessaging.net (Postfix) with ESMTP id 969DC219E64; Tue, 01 Mar 2005 15:29:32 +0100 (CET) Received: from esa-spas2.gmessaging.net ([127.0.0.1]) by localhost (esa-spas2 [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 06348-01; Tue, 01 Mar 2005 15:29:32 +0100 (CET) Received: from sciops-mailgw.vilspa.esa.int (sciops-mailgw.vilspa.esa.int [193.147.152.105]) by esa-spas2.gmessaging.net (Postfix) with ESMTP id E43C5219E4F; Tue, 01 Mar 2005 15:29:31 +0100 (CET) Received: from xvsas01.vilspa.esa.es (xvsas01.vilspa.esa.es [193.147.152.101]) by sciops-mailgw.vilspa.esa.int (Postfix) with ESMTP id 5FE2211F769; Tue, 01 Mar 2005 15:29:32 +0100 (CET) Received: from rssd.esa.int (ints12.xsci.lan [192.168.1.227]) by xvsas01.vilspa.esa.es (8.12.10/8.12.10) with ESMTP id j21ETVXb010304; Tue, 01 Mar 2005 14:29:31 +0000 (GMT) Date: Tue, 01 Mar 2005 15:28:44 +0100 From: Peter Kretschmar Subject: Planning for Crab calibration To: Angela Bazzano , Jean-Pierre Roques , Niels Lund , Albert Domingo Garau Cc: ISOC_at_ESAC Message-id: <42247C1C.10007@rssd.esa.int> Organization: ESA MIME-version: 1.0 Content-type: multipart/mixed; boundary="Boundary_(ID_V+D3zALNkdyFcJAHRcQ0Yg)" X-Accept-Language: en-us, en, de-de User-Agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.0.1) Gecko/20020920 Netscape/7.0 X-Spam-Score: Content analysis details: (-1.1 points, 4.5 points required to be considered as spam) 0.1 HTML_50_60 BODY: Message is 50% to 60% HTML 0.1 HTML_MESSAGE BODY: HTML included in message -1.2 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] -0.1 AWL AWL: Auto-whitelist adjustment This is a multi-part message in MIME format. --Boundary_(ID_V+D3zALNkdyFcJAHRcQ0Yg) Content-type: text/plain; charset=ISO-8859-15; format=flowed Content-transfer-encoding: 7BIT Dear all, having received input from all sides, here's finally an overview of what could potentially be done in revolution 300 (March 28-31) for the Crab calibration. It is a very tight fit into the 200 ks maximum, with the following assumptions: - The planned GPS is dropped (and will most probably not be done at another time, see below). - We use minimal time slewing. - The JEM-X narrow dither can indeed be done with 700 sec pointings, as PICsIT is in PPM and JEM-X gets additional TM share (from ISGRI and SPI?). - Most other dither patterns run with 1800 s instead of 2000 as proposed, squeezing a bit the overall time. If matters get tight, when we try to plan this in detail, one option would be to widen the spacing of the 'great circle'. Another, proposed by the IBIS team is to do the PICsIT empty field another time. This would probably be possible, but first its needs Chris' approval (he's out of office this week) and second it cuts again into other observations. Please note that we are hard pressed to catch up on various programs which have not achieved the promised share of INTEGRAL time. The current TOOs have not helped - even though many of us appreciated them scientifically. My slight preference would thus be for the more widely spaced circle. Please let me know soon if I misunderstood your inputs in any way or if you notice other problems. The column Notes should probably be changed to a detailed list of instrument modes and TM share. Best regards, Peter --Boundary_(ID_V+D3zALNkdyFcJAHRcQ0Yg) Content-type: text/html; name=Crab_Calibration_Spring_2005.html Content-transfer-encoding: 7BIT Content-disposition: inline; filename=Crab_Calibration_Spring_2005.html Crab Calibration Spring 2005
Calibration observation
 # of
ptgs
 time per
ptg. [s]
 total
time
 Notes
PICsIT empty field
 1
 10000
 10.0 ks
 PICsIT in PPM mode
JEM-X narrow dither (3.34')
PICsIT "on axis"
 19
 700
 13.3 ks
 Increased TM share for JMX1+JMX2 (15+15)
PICsIT in PPM mode, short pointings
SPI/IBIS 5*5 pattern
 25
 1800
 45.0 ks
IBIS 14.5 deg off-axis
 1
 50000
 50.0 ks
 Nominal IBIS setup, no Compton selection
Circle 10 deg radius, 8 deg spacing 45
 1800
 81.0 ks
Total
 91
199.3 ks

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