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Originally posted by depthoffield
well, they do regular water dumps on this STS-75 mission. (or is it with FES?)
they are doing this periodically.
No matter a water or waste dump, those discs we see, are bokeh from closer small particles, and nobody could deny this...because it consists in the way optics works.
[edit on 5/11/09 by depthoffield]
Well regarding water dump...just before (www.abovetopsecret.com... ) i posted extracts from a NASA study and it was a reply exactly to you! You ignore what the study says...
For
fixed solar angle the observed temporal decay of the particles reflects a real drop in concentration, since detection sensitivity is a constant. The number
of visual particles in each 2.7 s exposure is plotted in Figure 2 from the end
of the dump until orbital sunset 19 min later.
The clearing time (e-fold) following a water dump is 2 to 10 min depending on
attitude.
Originally posted by spacefan
flights 75 and 73 were different and in 75s case the side nozzles normally used for dumping excess water were not in use for several reasons already explained and linked to.
i show quite clearly why flight 75 could not be surrounded by ice particles during the time the footage was shot and the response is to try and drown my posts out with nonesense kinda speaks volumes really.
Originally posted by spacefan
that vid is good and you again think it strenghens your case.
well i humbly submit it does no such thing start the vid at 10mins.38secs onwards and listen carefully to what the astronaut says.
www.nss.org...
he says as he starts to exercise how very careful he /they have to be in order not to rock or disturd the shuttle in anyway during the crystal experiments such is the delicate nature of the crystal experiments onboard.
he then goes on to exercise normally as it was prior to the experiments start.
TSS-1R/USMP-3 Public Affairs Status Report #14
6:00 a.m. CST, March 1, 1996
7/15:42 MET
Spacelab Mission Operations Control
Marshall Space Flight Center
[]
Yesterday, [29 feb] the Advanced Automated Directional Solidification Furnace (AADSF) team members adjusted their timeline, delaying the first crystal processing run until later today[1 march], to ensure that conditions are right for their solidification techniques. AADSF team members can tell that solidification has begun in their furnace when a "seed" or solid core forms in the molten lead-tin-telluride, a sample of semiconductor material. In ground-based solidification, this seed formation would normally show up as a "spike," or sharp rise and fall,
in the temperature data the team receives from the experiment.
When the seed formed more slowly than expected Thursday [29 feb], appearing as a "hump" instead of a spike in the data plot, due to the low-gravity environment, the team re-melted their sample to again verify the exact time of seed formation. Having accomplished this, they decided to wait for the next period of reduced crew activity, scheduled for this
evening, in order to take maximum advantage of the relatively
undisturbed microgravity environment. Such "quiescent periods" are
necessary to allow each of three crystal samples to develop in the
best possible growth conditions.
Originally posted by Balez
The complete study has not been available to me until now.
I've read it and it changes nothing.
Are you sure that it could not be surrounded by ice particles during that time? Do you know what time it was they made that footage? Without that information we are still guessing.
Originally posted by spacefan
i show quite clearly why flight 75 could not be surrounded by ice particles during the time the footage was shot and the response is to try and drown my posts out with nonesense kinda speaks volumes really.
Can we be sure of that? Could you please point me to where that is written, I missed it.
Originally posted by spacefan
the footage was shot at about midnight 29/2 1/3 armap.
Originally posted by ArMaP
Can we be sure of that? Could you please point me to where that is written, I missed it.
Originally posted by spacefan
the footage was shot at about midnight 29/2 1/3 armap.
And for old pages you can always use the Wayback Machine, I tried the first two links and they are there.
Originally posted by wmd_2008
reply to post by spacefan
No it doesn't have to be ice any small point source of light which is out of focus will look like that so it could be ice,dust,particles from tiles as long as it reflects enough light to be seen SO cut the ice only CR@P!
Originally posted by spacefan
i havent checked for exact figures there i only strongly think from memory that they are correct.
Originally posted by JimOberg
I still can't figure out what you meant by "chuffed" and instead of explaining when politely asked to, you throw insults at people who ask for clarification, as if our problem in figuring out what you are trying to say in your posts is because we're the stupid ones.
Originally posted by spacefan
ok i will work on that site function thanks.
timeline as promised so where did the ice come from jim.
day 1 thursday the 22/2
Columbia will remain in a near circular 160 nautical mile orbit for
most of the mission, circling the Earth every 90 minutes to provide
the crew with views of a sunrise and sunset 16 times each day.
day 2 friday the 23/2
details of various experiments and staff shifts x3
day 3 saturday the 24/2
problems with tether computor control system.
Troubleshooting a balky experiment data relay box was the focus of work aboard Columbia throughout Friday night and into this morning as the astronauts and flight controllers attempted to track down the problem and preserve their options for deploying the tethered satellite at 2:37 this afternoon.
this is the tops camera experiment.
the SPREE experiment, conducted
by David Hardy of the Department of the Air Force, will
measure the charged particle quantities around Columbia
before and during active tethered satellite operations.
day 4 sunday the 25/2
Columbia's crew will begin the deploy sequence of the Tethered
Satellite System about 2:45 this afternoon after a one-day delay
first waste water flush and fes experiment.
Another investigation of Columbia's surroundings made use of the orbiter's Flash Evaporator System (FES). To accomplish this experiment, the crew participated in activating and deactivating the orbiter's water release systems and manually operating the Shuttle's attitude control system jets. This provided a controlled means of studying the distribution of neutral and charged particles in the vicinity of the payload bay during Shuttle water dumps.
The tether on the Italian Tethered Satellite broke about 7:30 p.m. CST
Sunday as the satellite was nearing the full extent of its deployment
from the Shuttle. The satellite, which was nearing the end of its
planned 12.8 mile distance, immediately began accelerating away from
Columbia at a rapid rate as a result of normal orbital forces. TSS is
separating from Columbia at a rate of 420 miles each 90 minute orbit.
even tho they had a waste water dump/flush prior as part of the tops experiment that day you dont see any ice/debris
in the break footage its pristine because fes does not produce ice when fully functional and is performingas expected and releasing steam only.
Following the break, Mission Control asked the astronauts to record television of the boom and broken tether for post-flight analysis
Its this footage that has been edited into the later footage at the beginning of all the longer versions of martins clips.
day 5 monday 26/2
day 6 tuesday 27/2
day 7 wednesday 28/2
NASA managers decided today not to return Columbia to the Tethered
Satellite for either a close inspection or a possible retrieval after
concluding that propellant margins would not be adequate to support
the operations.
The Tethered Satellite is currently 7,100 nautical miles ahead of
Columbia with the distance between the two spacecraft closing at the
rate of 340 nm with every revolution of the Earth. The two spacecraft
will pass within 50 nm of one another about 11:48 p.m. Thursday, at a
Mission Elapsed Time of 7/09:30.