Author Topic: NASA TV HD Thread  (Read 269194 times)

Offline rdale

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Re: NASA TV HD Thread
« Reply #540 on: 11/17/2009 10:31 PM »
Thanks, I'm just curious if it's good enough just to upgrade to a sat service that has HDNET, or keep cable and put in a big-dish. If it's not a terribly different image, I'll go cheap and easy ;)

Offline Andrewwski

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Re: NASA TV HD Thread
« Reply #541 on: 11/17/2009 10:40 PM »
HDNet doesn't give quite the same coverage though.  They generally only cover the last half hour or so of the count, and most of it is commentated by Greg Dobbs - only the last three minutes or so are NASA audio.  They also have cut off the ET cam before MECO before and shown static shots of the pad while recapping the launch - while it is still occurring!
NEW MUSIC VIDEO:
STS-125 DREAMS in HD!

Offline rdale

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Re: NASA TV HD Thread
« Reply #542 on: 11/17/2009 10:44 PM »
That's not a big deal, I don't care about HD coverage of a still shot for hours ahead of time :)

Offline dshaffer

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Re: NASA TV HD Thread
« Reply #543 on: 11/18/2009 01:33 AM »
Before sleep today, crew downlinked approx 5 min of HD Crew Choice from FD1 & 2.

Offline rdale

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Re: NASA TV HD Thread
« Reply #544 on: 11/18/2009 02:28 AM »
...and Spacevidcast is carrying HD feed 105 now, looks like through the mission, so should be able to see the downlinks live if all works out!

http://www.spacevidcast.com/nasahd/

Offline ChrisC

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Re: NASA TV HD Thread
« Reply #545 on: 11/18/2009 02:35 AM »
Prior to launch coverage, NASA's HD service is just sitting on the pad shot, true, but once the PAO coverage starts (5 hours prior this time) it's all in HD.  All the camera shots, all the packages, etc.  That's far better than the 30 minutes you get from HDNet.

The cameras may have very well been supplied by HDNet early on, but I'd bet my wallet that they are all set to 720p,and HDNet converts for their 1080i distribution.  NASA wants progressive frames, period, so there's no time imbiguity (i.e. interlace issues) in what is essentially a documentation system for them.

What's a better question is what bitrates are they using to distribute, and how new are their video encoders?  NASA is compressing at a low 12 Mbps (MPEG2) and using fairly old encoders, I believe.  And I think the picture shows it -- it's frankly terribly grainy and I see a lot of mosquito noise on those pads shots.

I've been saying for far too long (since page 2 of this thread!) that they could easily cut the SD services back from the excessive 8-9 Mbps to 6-7 Mbps with no loss of quality, and give that to the HD service which sorely needs it. And leave it up like that 24-7.  Ferchrissakes, leave it up so that the cable companies can start using it.  If it's occasional they'll never take it into their systems.


But I still can't stop watching it :)
« Last Edit: 11/18/2009 02:41 AM by ChrisC »
How to embed photos from outside sources (e.g. Twitter)
NASA TV in HD:  history and FAQ (from 2007-2010 startup period)

Offline rsmath

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Re: NASA TV HD Thread
« Reply #546 on: 11/18/2009 10:37 AM »
Thanks, I'm just curious if it's good enough just to upgrade to a sat service that has HDNET

If all you wanted was HDNET's launch and landing coverage, you can get the feeds from the cape to HDNET's master control with a 3-4' dish and a FTA receiver that supports HD transmissions.  If you want the movies and sports and other programming HDNET offers, then you need DIRECTV, DISH, or cable.


Offline ChrisC

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Re: NASA TV HD Thread
« Reply #547 on: 11/18/2009 04:28 PM »
What satellite and frequency does HDNet do their backhauls on?  MPEG2 or MPEG4?
How to embed photos from outside sources (e.g. Twitter)
NASA TV in HD:  history and FAQ (from 2007-2010 startup period)

Offline lcs

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Re: NASA TV HD Thread
« Reply #548 on: 11/19/2009 12:25 AM »
This was the answer in 2005:

ANIK - F2 - Ku 10
11985 V
SR 14031

33/36/33 AC3
HDNET

Lately it is Horizons 2, with 14029 for the SR.

Source: Google
« Last Edit: 11/19/2009 12:27 AM by lcs »

Offline dshaffer

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Re: NASA TV HD Thread
« Reply #549 on: 11/19/2009 01:52 AM »
First HD Highlights (FD 3) will be shown at 11:00 pm est (04:00 GMT) - 2 hrs from now. Approx 15 minutes in length.

Offline rdale

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Re: NASA TV HD Thread
« Reply #550 on: 11/19/2009 03:38 AM »
I didn't see them on the SVC HD feed... Slate dropped at 11pm but it's been black since then.

Offline rsmath

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Re: NASA TV HD Thread
« Reply #551 on: 11/19/2009 12:24 PM »

STS-129 Launch Engineering HD - H264 format, about 1.2 MB in size.

I use HJSPLIT to split the files.  The same program, or other methods, can be used to rejoin them.

http://www.filefront.com/14947207/sts129-launch-engineering-hd.mp4.001/

http://www.filefront.com/14951897/sts129-launch-engineering-hd.mp4.002/

http://www.filefront.com/14952017/sts129-launch-engineering-hd.mp4.003/



Offline rsmath

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Re: NASA TV HD Thread
« Reply #552 on: 11/19/2009 12:29 PM »

STS-129 Flight Day 3 Highlights HD - H264 format, about 690 MB in size.

I use HJSPLIT to split the files.  The same program, or other methods, can be used to rejoin them.

http://www.filefront.com/14952771/sts129-fd3-hd.mp4.001/

http://www.filefront.com/14953035/sts129-fd3-hd.mp4.002/

Offline rsmath

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Re: NASA TV HD Thread
« Reply #553 on: 11/20/2009 07:46 AM »

STS-129 Flight Day 4 HD highlights - only about 5 minutes worth so a short file of about 165 MB.  H264 format.

http://www.filefront.com/14958351/sts129-fd4-hd.mp4


Offline rsmath

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Re: NASA TV HD Thread
« Reply #554 on: 11/21/2009 12:17 PM »
STS-129 Flight Day 5 HD Highlights - H264 and 255mb - pretty short because of no PAO in the package

First 2m30sec has timecode on one of the stereo audio channels.  The easy fix is to select the audio channel that doesn't have the timecode on it (I think it might be the R channel).

http://www.filefront.com/14964827/sts129-fd5-hd.mp4

If I find the HD feed later in the day, I may try a recapture/reencode if the timecode is missing from a later airing on NASA HD.





 



Offline rsmath

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Re: NASA TV HD Thread
« Reply #555 on: 11/22/2009 02:45 AM »
I might have missed the FD6 HD opportunity.  I didn't record in time the FD6 as listed in the TV sked.  I will monitor the channel until I go to bed and I"ll set up a recording for the normal morning-after time and see if they refeed it then or if they don't plan to since they didn't list a refeed in the tv schedule.


Offline rsmath

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Re: NASA TV HD Thread
« Reply #556 on: 11/23/2009 02:28 AM »
This might possibly be STS-129 FD 6 HD footage.  I missed the HD feed as scheduled and I set up a recording looking for a refeed.  There was no title screen and just this footage during the time I captured looking for a refeed.

If this is not FD6 HD footage, there might not have been a feed or there may be a refeed later in the mission if FD6 HD exists.

H264 format, about 150mb.

http://www.filefront.com/14978061/sts129-possibly%20fd6-hd.mp4





Offline lcs

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Re: NASA TV HD Thread
« Reply #557 on: 11/23/2009 02:59 AM »
Can anyone viewing these HD highlights estimate the fraction of video that shows views of the earth?  My guess is about 1%.  To me the only reason for taking an HD camera up there is to show earth views.  For all I know we could be looking at pictures of a nuclear submarine crew.   

Offline dshaffer

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Re: NASA TV HD Thread
« Reply #558 on: 11/23/2009 03:10 AM »



FD6 HD crew choice downlink was approx 12 min in length - as shown on live NASA TV before crew sleep.

This might possibly be STS-129 FD 6 HD footage.  I missed the HD feed as scheduled and I set up a recording looking for a refeed.  There was no title screen and just this footage during the time I captured looking for a refeed.

If this is not FD6 HD footage, there might not have been a feed or there may be a refeed later in the mission if FD6 HD exists.

H264 format, about 150mb.

http://www.filefront.com/14978061/sts129-possibly%20fd6-hd.mp4






Offline rdale

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Re: NASA TV HD Thread
« Reply #559 on: 11/23/2009 03:10 AM »
Can anyone viewing these HD highlights estimate the fraction of video that shows views of the earth?

Very little.

Quote
To me the only reason for taking an HD camera up there is to show earth views.

No way. We have hi-res views of the Earth from a boatload of satellite-based cameras 24/7. Wouldn't you want to see the shuttle / ISS ops in hi-def as opposed to a hi-def cloud for 5 minutes? Have you downloaded any of these links?

Quote
For all I know we could be looking at pictures of a nuclear submarine crew.   

Huh? HDTV won't see nuclear sub crews. No TV will.

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