Interestingly, when you click on the date in Heavens Above for details, it generates the following error (Chris Peat, please note)... Microsoft VBScript runtime error '800a01a8' Object required: '' /PassDetails.asp, line 332 Both old and deep space objects are quite interesting, and this one is both. Anyone care to guess at the magnitude during a perigee pass? >Date: Tue, 15 Jan 2008 23:34:10 -0500 >From: Curtis Haase <73007.2024@compuserve.com> >To: SeeSat-L <SeeSat-L@satobs.org> >Subject: OGO 1 > >Has anyone observed OGO 1 (00879, 64-054A)? > >This old spacecraft is in a highly eccentric orbit (e~0.8) >with a long period (over 2.6 days). I noticed that it makes >a perigee pass over the middle of the US in a dark sky on the >morning of Jan 19 (perigee around 11:24 UTC, height 9800 km). > >This is one of those "ultra-deep space" objects that shows a >large difference in ephemeris output depending on whether the >TLE propagator does (or does not) apply deep-space perturbation >offsets at epoch. In the case of the Saturday AM perigee pass, >I found that the two methods give a similar path among the >stars, but with a large time difference (over 11 minutes!). > >Has anyone actually observed OGO 1 to see which approach is >correct? > >Thanks, > >Curtis Haase >Dallas TX >73007.2024@compuserve.com Almost Heaven Group Phone 304-645-2310 http://www.almostheaven.net/ Offering direct sales of Saunas, Steamrooms -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.2/1224 - Release Date: 1/14/2008 5:39 PM ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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