I used SkyMap and the five latest elsets The latest one, 0.25 days before the transit, and the one 0.60 before agree that the centerline is one mile N of his coordinates. The others need another mile or two. ISS 0.25 d 1 25544U 98067A 03100.80462084 .00021077 00000-0 28168-3 0 8787 2 25544 51.6339 358.6614 0006690 4.5589 106.2561 15.57982134250490 ISS 0.30 d 1 25544U 98067A 03100.74128571 .00021080 00000-0 28168-3 0 8773 2 25544 51.6333 358.9858 0006042 3.0066 112.3466 15.57990638250481 ISS 0.60 d 1 25544U 98067A 03100.65661166 .00022688 00000-0 29612-3 0 8764 2 25544 51.6348 359.4067 0003284 5.6106 354.5443 15.58014376250474 ISS 0.90 d 1 25544U 98067A 03100.17109874 .00021803 00000-0 28168-3 0 8756 2 25544 51.6356 1.8359 0004257 44.5419 109.6993 15.58876865250394 ISS 1.30 d 1 25544U 98067A 03099.77720405 .00020500 00000-0 26546-3 0 8748 2 25544 51.6352 3.8139 0004312 42.1567 60.1039 15.58858219250337 ----- Original Message ----- From: "Matson, Robert" <ROBERT.D.MATSON@saic.com> To: "'Thomas Fly'" <tfly@alumni.caltech.edu>; <SeeSat-L@satobs.org> Sent: Thursday, April 10, 2003 10:21 PM Subject: ISS Lunar Transit Tonight > Hi Thomas and List, > > I sent Thomas Laskowski transit centerline predictions based on an ISS > TLE I have from yesterday evening. Coordinates at 5-second intervals > around the time of closest approach to South Bend were: > > Date UTC Time Latitude Longitude > ---------- -------- --------- ---------- > 2003/04/11 1:30:45 42.3136 -87.1961 > 2003/04/11 1:30:50 42.1138 -86.8367 > 2003/04/11 1:30:55 41.9129 -86.4796 > 2003/04/11 1:31:00 41.7107 -86.1248 > 2003/04/11 1:31:05 41.5075 -85.7724 > 2003/04/11 1:31:10 41.3031 -85.4222 > 2003/04/11 1:31:15 41.0976 -85.0743 > > These do not agree at all with Thomas Fly's predictions, so either we are > using very different two-line elements, or there's a bug in Tom's code. > I used the following TLE: > > ISS > 1 25544U 98067A 03099.77720405 .00020500 00000-0 26546-3 0 8748 > 2 25544 51.6352 3.8139 0004312 42.1567 60.1039 15.58858219250337 > > Cheers, > Rob > > ----------------------------------------------------------------- > To unsubscribe from SeeSat-L, send a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@satobs.org > List archived at http://www.satobs.org/seesat/seesatindex.html > > ----------------------------------------------------------------- To unsubscribe from SeeSat-L, send a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@satobs.org List archived at http://www.satobs.org/seesat/seesatindex.html
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