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New Horizons Jupiter Encounter
Guest_AlexBlackwell_*
post Jan 10 2007, 09:47 PM
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I thought I'd start a new thread for this:

Jupiter Encounter Begins
January 10, 2007
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Rakhir
post Jan 24 2007, 10:24 AM
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Just 3 HB to launch 1kg to LEO (or 10 to GTO) ? blink.gif
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Bob Shaw
post Jan 24 2007, 12:45 PM
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I hope no teenagers (AKA 'The Great Unwashed') have been reading the Hot Bath observations; they can now point out that sitting slumped in front of the TV (unwashed) for a fortnight is as green as having only one bath. I forsee major domestic issues here...


Bob Shaw


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AndyG
post Jan 24 2007, 01:42 PM
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Don't worry, Bob. It's also a quality of life indicator. My figures suggest that the US energy use for 1999 (the last year I could reliably get in a few minutes' googlin') equates to 1 HB per capita every twenty minutes.

And yes, Rakhir, that is the energy to orbit. Not much. Just "difficult".

Andy
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dvandorn
post Jan 24 2007, 06:29 PM
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QUOTE (AndyG @ Jan 24 2007, 07:42 AM) *
And yes, Rakhir, that is the energy to orbit. Not much. Just "difficult".

Yep -- while the energy costs to get "up the hill" are high, they're not much higher, relatively, than a lot of other things. For example, I've seen numbers that say a fully-fueled 747 has enough energy available, in its fuel tanks, to put the plane into orbit. It takes that much energy to fly a 747 halfway across the globe. But in flying at airliner speeds, the 747 releases the total energy much more slowly than needed to accelerate to orbital velocity.

If you could expend all of the energy in a 747's tanks in about six or seven minutes, you could, indeed, put it into orbit... (shades of Star Smashers of the Galaxy Rangers!)

-the other Doug


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tty
post Jan 24 2007, 07:29 PM
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QUOTE (dvandorn @ Jan 24 2007, 07:29 PM) *
If you could expend all of the energy in a 747's tanks in about six or seven minutes, you could, indeed, put it into orbit... (shades of Star Smashers of the Galaxy Rangers!)


Unfortunately there are other complications. A 747 doesn't have to take oxidant along and it's engines need only function in a narrow speed range (subsonic). If someone would please invent a multicycle engine that can morph from turbofan to ramjet to scramjet to rocket then SSTO (and back) wouldn't be too difficult.

tty
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ElkGroveDan
post Jan 24 2007, 10:43 PM
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QUOTE (tty @ Jan 24 2007, 11:29 AM) *
If someone would please invent a multicycle engine that can morph from turbofan to ramjet to scramjet to rocket then SSTO (and back)

Well I'm real busy with the concrete walk and back patio these days, but I promise I'll have a look as soon as I'm done (probably May if we don't have too much rain this winter) ....unless of course Doug finishes the UMSF shed first, then maybe he'll have time.


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Posts in this topic
- AlexBlackwell   New Horizons Jupiter Encounter   Jan 10 2007, 09:47 PM
- - climber   I didn't realize encounter will be up to June....   Jan 10 2007, 10:44 PM
- - djellison   New Horizons launched on Jan 19th 2006 and will fl...   Jan 11 2007, 10:22 AM
|- - ugordan   QUOTE (djellison @ Jan 11 2007, 11:22 AM)...   Jan 11 2007, 10:32 AM
- - djellison   To Plutonian distances - McNaught is several years...   Jan 11 2007, 10:50 AM
- - general   How come NH is slowing down, now that it's app...   Jan 15 2007, 07:55 PM
- - djellison   The 'sphere of influence' for Jupiter hasn...   Jan 15 2007, 08:02 PM
|- - yaohua2000   QUOTE (djellison @ Jan 16 2007, 04:02 AM)...   Jan 18 2007, 11:11 PM
- - climber   Call it aphelium of the Hohmann orbit... (ok, I...   Jan 15 2007, 11:43 PM
- - remcook   QUOTE (climber @ Jan 15 2007, 11:43 PM) C...   Jan 16 2007, 09:36 AM
|- - Bob Shaw   QUOTE (remcook @ Jan 16 2007, 09:36 AM) e...   Jan 16 2007, 11:49 AM
|- - climber   QUOTE (Bob Shaw @ Jan 16 2007, 12:49 PM) ...   Jan 17 2007, 07:18 AM
- - AlexBlackwell   NASA Spacecraft En Route to Pluto Prepares for Jup...   Jan 18 2007, 06:22 PM
|- - stevesliva   The Jupiter & Io LORRI photo caption mentions ...   Jan 18 2007, 07:08 PM
|- - volcanopele   I didn't think Jupiter had seasons per se, sin...   Jan 18 2007, 07:12 PM
- - elakdawalla   Did anyone else watch the press conference? I was...   Jan 18 2007, 11:18 PM
|- - helvick   Helluva rollercoaster ride that.   Jan 18 2007, 11:31 PM
|- - yaohua2000   QUOTE (elakdawalla @ Jan 19 2007, 07:18 A...   Jan 18 2007, 11:46 PM
|- - Sunspot   QUOTE (elakdawalla @ Jan 18 2007, 11:18 P...   Jan 19 2007, 01:30 AM
||- - ugordan   Umm... is there a link to the native resolution ve...   Jan 19 2007, 10:13 AM
||- - john_s   QUOTE (ugordan @ Jan 19 2007, 10:13 AM) U...   Jan 20 2007, 10:11 PM
|- - Littlebit   QUOTE (elakdawalla @ Jan 18 2007, 04:18 P...   Jan 19 2007, 07:44 PM
- - elakdawalla   Indeed...I guess New Horizons is now entering that...   Jan 18 2007, 11:44 PM
- - djellison   I missed it totally ( hope spaceflightnow.com put ...   Jan 18 2007, 11:48 PM
- - dvandorn   I will point out that in the "NASA Gallery...   Jan 18 2007, 11:56 PM
- - elakdawalla   Here you go, a minute and a half from the conferen...   Jan 19 2007, 12:02 AM
- - climber   That's the advantage of NOT been able to get N...   Jan 19 2007, 10:24 AM
|- - AlexBlackwell   Pluto Mission News January 19, 2007 http://pluto.j...   Jan 19 2007, 10:05 PM
- - elakdawalla   In some senses, Alan said, they were pushing the s...   Jan 19 2007, 04:38 PM
|- - JRehling   QUOTE (elakdawalla @ Jan 19 2007, 08:38 A...   Jan 19 2007, 08:21 PM
- - djellison   It is on Spaceflightnow.com as a MOV now (I don...   Jan 19 2007, 04:42 PM
- - elakdawalla   That's a good question. It would seem unlikel...   Jan 19 2007, 08:01 PM
|- - john_s   QUOTE (elakdawalla @ Jan 19 2007, 08:01 P...   Jan 20 2007, 09:49 PM
- - Analyst   This is a question for someone from the New Horizo...   Jan 20 2007, 08:29 AM
- - mars loon   I enjoyed watching the press conference live. Lot...   Jan 20 2007, 06:20 PM
|- - JRehling   Not to moan at a joyous time, but damn that luck o...   Jan 20 2007, 07:42 PM
- - PhilCo126   That 2nd poster is very nice ... something for the...   Jan 20 2007, 07:55 PM
- - elakdawalla   Thank you so much John!! I'll see if I...   Jan 20 2007, 10:14 PM
|- - john_s   Callirrhoe is one of the newly discovered small ou...   Jan 20 2007, 10:46 PM
- - djellison   A nice handfull of Kodak's - I'm really pr...   Jan 20 2007, 10:49 PM
|- - helvick   I think these are Kodak moments where the time in ...   Jan 20 2007, 11:02 PM
|- - djellison   Line 110 54159.48961 IO Emerging from behind Jupit...   Jan 20 2007, 11:24 PM
|- - helvick   These shots represent around 0.5% of the total dat...   Jan 20 2007, 11:45 PM
|- - JRehling   QUOTE (helvick @ Jan 20 2007, 03:45 PM) T...   Jan 21 2007, 01:03 AM
|- - Bob Shaw   A brief word to all the NH lurkers on UMSF: Keep ...   Jan 21 2007, 01:25 AM
- - hendric   I hope those Kodak moments come out well; I'm ...   Jan 21 2007, 08:06 AM
- - Analyst   Thank you very much for the timeline, John. Analy...   Jan 21 2007, 08:12 AM
- - PhilCo126   How will the Jupiter flyby affect the speed of New...   Jan 21 2007, 05:54 PM
|- - yaohua2000   QUOTE (PhilCo126 @ Jan 22 2007, 01:54 AM)...   Jan 21 2007, 07:08 PM
|- - helvick   That's true but Helios remains in orbit around...   Jan 21 2007, 08:13 PM
|- - ugordan   Exactly, if we're talking about highest speeds...   Jan 21 2007, 08:46 PM
- - Analyst   And then Voyager 1 is and will remain the fastest.   Jan 21 2007, 09:13 PM
- - climber   Agree on escape trajectory, nevertheless, for the ...   Jan 22 2007, 09:48 AM
- - Analyst   QUOTE (climber @ Jan 22 2007, 10:48 AM) W...   Jan 22 2007, 11:58 AM
|- - ugordan   QUOTE (Analyst @ Jan 22 2007, 12:58 PM) R...   Jan 22 2007, 12:24 PM
||- - Bob Shaw   QUOTE (ugordan @ Jan 22 2007, 12:24 PM) G...   Jan 22 2007, 12:57 PM
||- - ugordan   Bob, in that case it would be more fitting to talk...   Jan 22 2007, 01:06 PM
||- - Bob Shaw   QUOTE (ugordan @ Jan 22 2007, 01:06 PM) B...   Jan 22 2007, 01:22 PM
||- - AndyG   QUOTE (Bob Shaw @ Jan 22 2007, 01:22 PM) ...   Jan 24 2007, 09:27 AM
|- - climber   QUOTE (Analyst @ Jan 22 2007, 12:58 PM) R...   Jan 22 2007, 02:01 PM
- - Del Palmer   I've uploaded an audio recording of the press ...   Jan 22 2007, 02:35 PM
|- - hendric   This is perhaps the next best thing... http://www...   Jan 22 2007, 06:30 PM
- - dvandorn   Whereas we in Minneapolis get NASA-TV on our cable...   Jan 23 2007, 01:56 AM
- - edstrick   "#include standard_gripe_about_living_in_aust...   Jan 23 2007, 12:01 PM
- - edstrick   "...Perhaps one of these days NASA will creat...   Jan 23 2007, 12:04 PM
- - tasp   Helpful NASA-TV tip: I TIVO 5 hours of it every d...   Jan 23 2007, 02:46 PM
- - john_s   Hi folks- The "raw" Jupiter encounter L...   Jan 23 2007, 04:36 PM
- - elakdawalla   Hooray! Anyone want to take a crack ...   Jan 23 2007, 06:19 PM
|- - punkboi   Off-topic, but let us know how the Phoenix landing...   Jan 23 2007, 06:35 PM
- - djellison   Anim Gif of the Jan 15th sequence.   Jan 23 2007, 07:00 PM
- - djellison   50% size of the 8th-to-10th jan sequence. Doug   Jan 23 2007, 08:41 PM
- - djellison   And the 14th jan sequence - at 100%   Jan 23 2007, 09:11 PM
|- - JRehling   QUOTE (djellison @ Jan 23 2007, 01:11 PM)...   Jan 24 2007, 05:31 PM
- - NMRguy   The new PI Perspective is up. http://pluto.jhuapl...   Jan 24 2007, 12:10 AM
- - Decepticon   It's interesting to see small detail on the Ga...   Jan 24 2007, 09:24 AM
- - Rakhir   Just 3 HB to launch 1kg to LEO (or 10 to GTO) ?   Jan 24 2007, 10:24 AM
|- - Bob Shaw   I hope no teenagers (AKA 'The Great Unwashed...   Jan 24 2007, 12:45 PM
|- - AndyG   Don't worry, Bob. It's also a quality of l...   Jan 24 2007, 01:42 PM
|- - climber   QUOTE (AndyG @ Jan 24 2007, 02:42 PM) My ...   Jan 24 2007, 03:35 PM
|- - dvandorn   QUOTE (AndyG @ Jan 24 2007, 07:42 AM) And...   Jan 24 2007, 06:29 PM
|- - tty   QUOTE (dvandorn @ Jan 24 2007, 07:29 PM) ...   Jan 24 2007, 07:29 PM
|- - ElkGroveDan   QUOTE (tty @ Jan 24 2007, 11:29 AM) If so...   Jan 24 2007, 10:43 PM
- - PhilCo126   QUOTE The solar probe Helios 2 was the fastest tra...   Jan 24 2007, 04:01 PM
- - BPCooper   It is the craft to leave Earth with the highest re...   Jan 24 2007, 04:41 PM
|- - Alan Stern   QUOTE (BPCooper @ Jan 24 2007, 04:41 PM) ...   Jan 24 2007, 05:21 PM
|- - BPCooper   QUOTE (Alan Stern @ Jan 24 2007, 12:21 PM...   Jan 24 2007, 08:57 PM
- - djellison   Bit of an anim of I think four consecutive Jols ( ...   Jan 24 2007, 05:36 PM
|- - helvick   QUOTE (djellison @ Jan 24 2007, 05:36 PM)...   Jan 24 2007, 09:30 PM
- - john_s   Lovely!   Jan 24 2007, 05:40 PM
- - volcanopele   The PI Perspective notes that we haven't seen ...   Jan 24 2007, 05:42 PM
- - djellison   You can see dark material swirling around the GRS ...   Jan 24 2007, 05:48 PM
- - PhilCo126   http://www.yaohua2000.org/cgi-bin/New%20Horizons.p...   Jan 24 2007, 07:05 PM
- - Alan Stern   Yes, we'll slow after Jupiter. See the Press K...   Jan 24 2007, 09:46 PM
- - elakdawalla   I just asked Mark Showalter at the PDS Rings Node ...   Jan 24 2007, 10:35 PM
- - john_s   Here's a simplified and slightly updated versi...   Jan 25 2007, 12:19 AM
- - djellison   And new images added to the SOC gallery up to the ...   Jan 25 2007, 10:21 AM
- - peter59   Two satellites and two shadows ! First details...   Jan 25 2007, 04:50 PM
- - volcanopele   Here is a rotation movie for January 21: http://p...   Jan 25 2007, 05:30 PM
- - J.J.   Based on the approximate orbital velocity of Pluto...   Jan 25 2007, 11:41 PM
- - ugordan   Why do these NH images look somewhat blurrier than...   Jan 26 2007, 09:40 AM
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