Yes it is obvious that telemetry and other communications continue throughout the reentry as Jim stated. Looks like NASA needs to update their information pages. Dale > -----Original Message----- > From: Markus Mehring [mailto:m.m@gmx.de] > Sent: Saturday, February 01, 2003 1:17 PM > To: SeeSat-L@satobs.org > Subject: Re: Shuttle Columbia Lost???? > > > On Sat, 1 Feb 2003 09:39:16 -0800, you ("Dale Ireland" > <direland@drdale.com>) wrote: > > >Jim > >Maybe this is outdated info but this is what is currently > displayed on the > >NASA site > >http://spaceflight.nasa.gov/shuttle/reference/shutref/events/entry/ > >"At approximately 265,000 feet, the spacecraft enters a communications > >blackout, which lasts until the orbiter reaches an altitude of > approximately > >162,000 feet. [...] > > This is indeed outdated to some degree, since, for a couple of years now, > the TDRSs (that is, one of them specifically) usually provide a > communication and data link for that blackout period, pretty much peeking > into the blackout tunnel from above from its geostationary spot. > Final and sudden loss of comm and telemetry on STS-107 was reported to > having occured at a bit over 207.000 feet at Mach 18.3, well inside that > ionization period formerly causing a blackout. > > >I would treat this as a "rumor" since it has not been repeated, > but one of > >the CNN guys said telemetry showed pressure rising in one of the Shuttle > >tires before loss of communications. > > Well, by now it is certain that, in the minutes preceding loss of signals, > apparently at least eight sensors in or around the starboard wing > went out, > coincidin > > ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
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