Mark I think it's fair to say that all the NOSSs launched between 1971 and 1987 (NOSS 0 to 7) are faint and challenging objects. They came in triplets, with 16 secs in time between the leading and trailing satellites, and another satellite offset by up to 3 degrees. Only the NOSS 6 (86-14) triplet still keeps station. The NOSS 2-1 (90-50) and NOSS 2-2 (91-76) triplets are much brighter, and can be visible to the naked-eye at times. Their separation is smaller, about 10 secs instead of 16. The NOSS 2-3 (96-29) triplet is the same brightness, and their separation is smaller again, 6 secs instead of 10. Sometimes they look like a flying triangle in the sky, but sometimes they come virtually in a straight line. Best wishes David. David M Brierley Malvern, Worcestershire, UK > ---------- > From: Mark Harris[SMTP:Mark.Harris@southsomerset.gov.uk] > Sent: 15 May 2000 14:24 > To: SeeSat-D@blackadder.lmsal.com > Subject: NOSS triplet > > Hi, > > If I'm looking for passes of the above on Heavens Above, which of the > lots of NOSS-named entries do I select? > > Best wishes, > > Mark > -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful. ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
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