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#380
by
Jorge
on 13 Jun, 2007 22:57
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kneecaps - 13/6/2007 4:46 PM
Just a quickie. What is an OI TFL...I know the OI bit..but whats a TFL?
Thanks in advance!
Telemetry Format Load. It defines what parameters get included in the downlist.
These are all defined in the Orbit Ops C/L Flight Supplement, which for STS-117 can be downloaded here:
http://www.nasa.gov/centers/johnson/pdf/174660main_orb_ops_117_f.pdf(it is linked from this page:)
http://www.nasa.gov/centers/johnson/news/flightdatafiles/index.htmlThe format definitions are in the COMM/INST section, starting on p. 15 of the PDF.
The Flight Plan contains the callouts for changing the TFL. Nominally INCO commands this from the ground, but the crew can also do it.
The current TFL is 199, the prime docked format, which supports the Orbiter Interface Unit (OIU) and Sequential Still Video (SSV).
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#381
by
kneecaps
on 13 Jun, 2007 23:24
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Jorge - 13/6/2007 11:57 PM
kneecaps - 13/6/2007 4:46 PM
Just a quickie. What is an OI TFL...I know the OI bit..but whats a TFL?
Thanks in advance!
Telemetry Format Load. It defines what parameters get included in the downlist.
These are all defined in the Orbit Ops C/L Flight Supplement, which for STS-117 can be downloaded here:
http://www.nasa.gov/centers/johnson/pdf/174660main_orb_ops_117_f.pdf
(it is linked from this page:)
http://www.nasa.gov/centers/johnson/news/flightdatafiles/index.html
The format definitions are in the COMM/INST section, starting on p. 15 of the PDF.
The Flight Plan contains the callouts for changing the TFL. Nominally INCO commands this from the ground, but the crew can also do it.
The current TFL is 199, the prime docked format, which supports the Orbiter Interface Unit (OIU) and Sequential Still Video (SSV).
Again thanks for the information! I'm going to digest the info in the orbit ops C/L
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#382
by
ZeeNL
on 13 Jun, 2007 23:25
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I wonder which TDRS satellites are used now (during the STS-117 mission)? From the execution packages and orbitron, I figure TDRS East is TDRS 5, TDRS West is TDRS 4 and TDRS Z is TDRS 3. If I am right, why aren't they using the newer TDRS satellites?
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#383
by
Ankle-bone12
on 14 Jun, 2007 00:26
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How long would it have taken for the Galileo space probe to reach Jupiter were it not for the saftey revisions restricting fuel for payloads after Callenger?
I know its not about the shuttle directly but i couldn't find anywhere else to ask and I didn't want to start a thread.
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#384
by
DaveS
on 14 Jun, 2007 00:43
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Ankle-bone12 - 14/6/2007 2:26 AM
How long would it have taken for the Galileo space probe to reach Jupiter were it not for the saftey revisions restricting fuel for payloads after Callenger?
I know its not about the shuttle directly but i couldn't find anywhere else to ask and I didn't want to start a thread.
With Centaur, it would have been a direct flight(IE, no slingshots) so around 2 years.
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#385
by
psloss
on 14 Jun, 2007 01:23
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DaveS - 13/6/2007 8:43 PM
Ankle-bone12 - 14/6/2007 2:26 AM
How long would it have taken for the Galileo space probe to reach Jupiter were it not for the saftey revisions restricting fuel for payloads after Callenger?
I know its not about the shuttle directly but i couldn't find anywhere else to ask and I didn't want to start a thread.
With Centaur, it would have been a direct flight(IE, no slingshots) so around 2 years.
FWIW,
this JPL press release says 30 months.
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#386
by
Do Shuttles Dream
on 15 Jun, 2007 16:42
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Sorry if this has been answered, but I didn't see it.
When Atlantis uses her thrusters to help the ISS attitude, then the force must be translated through the docking port? What sort of stresses does that put on that small area?
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#387
by
brahmanknight
on 15 Jun, 2007 16:48
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I noticed a "notch" in the back of the payload bay. Most of the bay is curved, except that part. Why is it there?
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#388
by
mjp25
on 16 Jun, 2007 00:24
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Correct me if I'm wrong, but wouldn't an orbiter that landed in Australia have to be brought back on some ship? The range of the SCA is greatly reduced with an orbiter on board. In fact, doesn't it make 2 refueling stops on the way from CA to FL? Maybe I don't know my south Pacific/Asian large airports well enough, but I'm not seeing how the orbiter could get home on the SCA from Austraila. While I'm at it, anybody know the route for a return after a TAL abort?
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#389
by
brahmanknight
on 16 Jun, 2007 00:38
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As far as returning from a TAL, I know when Enterprise went to Paris in the early 80's, the SCA crossed the Atlantic from Newfoundland to the British Isles. As far as from Australia, I'm not sure. Maybe fly up north from Indonesia to Vietnam to China to Japan to Russia. Then cross to Alaska and come back down.
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#390
by
ichilton
on 16 Jun, 2007 21:30
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Hi,
I'm interested in how the ground communicates with the shuttle and the ISS. I've heard mention about Ku-band, S-band, Air to Ground 2 etc.
What are these, what are the difference between them and what is the full list of what's available?
Is communication available all the time?
How do they downlink photos & video's? What about the NASA TV coverage?
How much bandwidth is available and when?
Do they have internet & email access up there?
Any explanation, information or links to more info would be appreciated.
Thanks
Ian
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#391
by
Danny Dot
on 17 Jun, 2007 00:53
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Just before MECO, the main engines on the shuttle throttle back to maintain 3Gs. Why?
(I am not talking about the throttle back early for max-q. I am talking about the later one)
Danny Deger
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#392
by
yinzer
on 17 Jun, 2007 01:25
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Because they want to limit loads on the structure, payload, and astronauts.
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#393
by
Danny Dot
on 17 Jun, 2007 02:06
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Danny Dot - 16/6/2007 7:53 PM
Just before MECO, the main engines on the shuttle throttle back to maintain 3Gs. Why?
(I am not talking about the throttle back early for max-q. I am talking about the later one)
Danny Deger
The answer is a joke I used to tell the Navy Test Pilot class, "So Navy Fighter Pilots can fly the shuttle" :-)
Danny Deger
P.S. I flew F-4Es for the Air Force.
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#394
by
vt_hokie
on 17 Jun, 2007 03:14
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Danny Dot - 16/6/2007 10:06 PM
P.S. I flew F-4Es for the Air Force.
I'm jealous!
The F-4's always been one of my favorite aircraft!
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#395
by
MKremer
on 17 Jun, 2007 04:18
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Do Shuttles Dream - 15/6/2007 11:42 AM
Sorry if this has been answered, but I didn't see it.
When Atlantis uses her thrusters to help the ISS attitude, then the force must be translated through the docking port? What sort of stresses does that put on that small area?
Not a lot - the small vernier thrusters are used, and just a few short pulses are needed.
Attitude control movements can generally be described as very slow and ponderous - 20 minutes or more per 180 degree rotation.
Not much difference than the force the Russian side's docking ports experience when using that side's thrusters for attitude control.
(Plus, the docking ports on both sides are pretty beefy constructions in their own right - thick steel rings, heavy clamps and support structures.)
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#396
by
MKremer
on 17 Jun, 2007 04:19
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brahmanknight - 15/6/2007 11:48 AM
I noticed a "notch" in the back of the payload bay. Most of the bay is curved, except that part. Why is it there?
I still can't figure out what "notch" you see - got any pic links to better describe what you're asking about?
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#397
by
MKremer
on 17 Jun, 2007 04:34
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ichilton - 16/6/2007 4:30 PM
Hi,
I'm interested in how the ground communicates with the shuttle and the ISS. I've heard mention about Ku-band, S-band, Air to Ground 2 etc.
What are these, what are the difference between them and what is the full list of what's available?
Is communication available all the time?
How do they downlink photos & video's? What about the NASA TV coverage?
How much bandwidth is available and when?
Do they have internet & email access up there?
Any explanation, information or links to more info would be appreciated.
Thanks
Ian
Um, not to sound insulting, but much of that info is already available through internet searches (Google, etc.) - lots of NASA and industry pages, pdf documents and reports that describe and detail the various comm channels, bandwidths, and what and how data is radiated back and forth.
Searching this site will find some of the same and additional details, plus there are some of the official manuals available through L2 here that include further technical and operational descriptions.
There is no *one* overall document/manual/report that lists absolutely every detail available. You'll have to do the overall research and reading on your own, but I can guarantee that folks here will be glad to answer any *specific*, detailed operational or technical questions that haven't already been covered or answered previously.
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#398
by
brahmanknight
on 18 Jun, 2007 03:47
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#399
by
Jim
on 18 Jun, 2007 16:29
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It is the wing pass thru
