At the risk of being completely wrong (I also haven't seen the video clips), probably the flashes are electric discharges from the charged shuttle in the conductive plasma. The reentry trail is effectively a long semi-conductive tube of ionized gas with a highly charged electrode (shuttle) at one end. The charged shuttle causes a steep voltage gradient (electric field) with the surrounding air, which would be sufficient for electric breakdown continuously. Since these discharges would happen into the more or less conductive plasma (at very low pressure) as opposed to the type of lightning discharges we see in a lightning storm, the shuttle discharges would be more of the corona/streamer type. Could the camera have been mounted at the top view windows in the cockpit? The shuttle has a steep angle of attack during part of the reentry, so the crew would have a clear view down the plasma trail from there. Harald Edens Socorro NM At 20:03 2003-02-06 +1300, you wrote: >I am unsure if this answers the first question but I am aware that on at >least some previous missions (not sure about this one) cams were situated in >the payload bay. You can see the layout of the payload bay on >http://spaceresearch.nasa.gov/sts-107/overview.html#payload (so sad to see >the pic of Kalpana there though!) > >Over to others on the second question. > >Robert Holdsworth >Wainuiomata >New Zealand > >----- Original Message ----- >From: "Dale Ireland" <direland@drdale.com> >To: "SeeSat-L" <SeeSat-L@satobs.org> >Sent: Thursday, February 06, 2003 7:06 PM >Subject: plasma trail > > > > The were some very interesting video clips on the news tonight taken from > > inside a Shuttle during a previous reentry. Looking out the front windows > > from behind the pilot at the bright red glow and looking back at the >plasma > > trail. questions: How did they get a shot out the back or down the side >of > > the shuttle looking back?? A camera back where the engines are perhaps? I > > had never seen anything like it... and.. both shots showed very bright > > flashes every few seconds like electrical discharges not the smooth > > nonvariable plasma trail that we have been discussing, any idea what that > > was? > > Dale > > > > > > ----------------------------------------------------------------- > > 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 > > > > > > >----------------------------------------------------------------- >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 ----------------------------------------------------------------- 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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