Dawn Cruise |
Dawn Cruise |
 Sep 27 2007, 12:31 PM
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#1
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 Member  Group: Members Posts: 100 Joined: 11-October 04 From: Oxford, UK (Glasgow by birth) Member No.: 101  |
Pushing out of Earth orbit now...........
-------------------- "There are 10 types of people in the world - those who understand binary code, and those who don't."
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Aug 31 2008, 03:31 AM
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#2
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 Member Group: Members Posts: 340 Joined: 11-April 08 From: Sydney, Australia Member No.: 4093 |
BTW, whilst getting the Dawn data from the Horizons system, I noticed the following description of the propulsion system. I particularly love the bold part, leaves every high-performance car lover drooling!
PROPULSION Dawn uses 3 ion thrusters to reach Vesta once separated from the Delta II. It will use the thrusters to spiral to lower altitudes on Vesta, leave Vesta, cruise to Ceres, and spiral to a low altitude orbit at Ceres. Weight : 8.9 kg each Dimensions : 33 cm long, 41 cm diameter Specific impulse : 3100 s Thrust : 19-91 mN Acceleration : 0-60 mph in 4 days Operational time : 2000 days of thrust (entire mission) -------------------- |
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SkyeLab Dawn Cruise Sep 27 2007, 12:31 PM
elakdawalla loon reports from the Cape that AOS happened about... Sep 27 2007, 02:39 PM
ustrax Horst Uwe Keller, Dawn's FC Team Leader report... Sep 27 2007, 02:55 PM climber May be little OT...and that's the reason of th... Sep 27 2007, 04:10 PM punkboi Godspeed, Dawn! Sep 27 2007, 04:18 PM Rakhir QUOTE (climber @ Sep 27 2007, 04:10 PM) W... Sep 27 2007, 08:49 PM dvandorn Well -- I missed the launch (6:34 am is a little e... Sep 27 2007, 05:18 PM stevesliva Amazing! Given the incredible complexity of t... Sep 27 2007, 05:39 PM Toma B Just as I thought...nobody in the press conference... Sep 28 2007, 07:33 AM ugordan QUOTE (Toma B @ Sep 28 2007, 09:33 AM) I ... Sep 28 2007, 07:36 AM stevesliva QUOTE (ugordan @ Sep 28 2007, 03:36 AM) I... Sep 28 2007, 04:57 PM elakdawalla QUOTE (Toma B @ Sep 28 2007, 12:33 AM) I ... Sep 28 2007, 04:35 PM Greg Hullender jabe: No, that's not it, but this has already ... Sep 29 2007, 05:46 AM jabe QUOTE (Greg Hullender @ Sep 29 2007, 05:4... Sep 29 2007, 11:56 AM Del Palmer Latest Dawn journal:
http://dawn.jpl.nasa.gov/mis... Oct 2 2007, 05:14 PM punkboi Interesting journal. Hopefully, a "Where is ... Oct 2 2007, 05:41 PM Stephen QUOTE (punkboi @ Oct 3 2007, 03:41 AM) In... Oct 3 2007, 02:38 AM djellison It doesn't need a subforum until it starts doi... Oct 3 2007, 06:59 AM Stephen QUOTE (djellison @ Oct 3 2007, 04:59 PM) ... Oct 4 2007, 02:03 AM jamescanvin QUOTE (Stephen @ Oct 4 2007, 03:03 AM) I ... Oct 4 2007, 08:50 AM djellison QUOTE (Stephen @ Oct 4 2007, 03:03 AM)
... Oct 4 2007, 10:54 AM Stephen QUOTE (djellison @ Oct 4 2007, 08:54 PM) ... Oct 5 2007, 01:49 AM volcanopele I could see the creation of a new thread though Oct 3 2007, 07:09 AM ugordan QUOTE (volcanopele @ Oct 3 2007, 09:09 AM... Oct 3 2007, 08:47 AM Greg Hullender I think it's simpler than that; it's becau... Oct 4 2007, 04:57 AM CAP-Team Here's where Dawn is now:
Earth as seen fro... Oct 4 2007, 10:00 AM punkboi QUOTE (CAP-Team @ Oct 4 2007, 03:00 ... Oct 4 2007, 05:27 PM ugordan QUOTE (punkboi @ Oct 4 2007, 07:27 PM) I ... Oct 4 2007, 05:56 PM CAP-Team QUOTE (punkboi @ Oct 4 2007, 07:27 PM) Co... Oct 4 2007, 09:20 PM volcanopele Wow, you're right, Dawn is available on the NA... Oct 4 2007, 09:27 PM belleraphon1 Sweetness and LIGHT.....
First ion thruster test... Oct 9 2007, 11:56 PM Marz Marc cracks me up!!!
"The drama ... Oct 10 2007, 04:32 AM peter59 Science Instruments Checked Out
October 15 - 19
Da... Oct 20 2007, 07:40 AM peter59 Second Ion Thruster Checkout Completed Successfull... Oct 27 2007, 06:36 AM nprev Thanks for the update, Peter. Green bird, baby, gr... Oct 27 2007, 01:32 PM brellis QUOTE (nprev @ Oct 27 2007, 06:32 AM) has... Oct 27 2007, 02:06 PM punkboi New journal up:
http://dawn.jpl.nasa.gov/mission/... Oct 27 2007, 06:45 PM peter59 More Ion Thrusting Tests Completed
November 12 - 1... Nov 20 2007, 08:59 PM punkboi A week late, but whatever:
http://dawn.jpl.nasa.g... Nov 20 2007, 09:04 PM peter59 Main Antenna Checked Out and New Software Uploaded... Nov 24 2007, 07:35 AM punkboi "Where is Dawn now?" page finally up:
h... Nov 29 2007, 06:48 PM peter59 "Dawn has started IPS cruise thrusting to Ves... Dec 19 2007, 09:56 PM punkboi http://www.planetary.org/blog/article/00001266/
N... Dec 20 2007, 09:15 AM IM4 Good news everyone!
Extended version of the D... Jan 8 2008, 09:33 PM tedstryk That is still 7 million miles, but it could be don... Jan 9 2008, 11:53 AM elakdawalla The latest Dawn Journal is now up at JPL and TPS w... Feb 1 2008, 07:28 PM JTN (I'm not normally into fields'n'partic... Feb 10 2008, 09:17 PM Holder of the Two Leashes In a word, no.
If Vesta appears unusually brigh... Feb 14 2008, 07:28 PM ugordan QUOTE (Holder of the Two Leashes @ Feb 14 200... Feb 14 2008, 07:31 PM Holder of the Two Leashes The weathering being referred to here is the gener... Feb 14 2008, 07:51 PM punkboi New Dawn journal up:
http://dawn.jpl.nasa.gov/mis... Mar 5 2008, 02:09 AM peter59 I nearly forgot about these cancelled missions.
P... Mar 20 2008, 04:34 PM dmuller QUOTE (peter59 @ Mar 21 2008, 02:34 AM) P... Jun 30 2008, 06:41 AM 3488 QUOTE (jasedm @ Jul 1 2008, 11:30 AM) I... Jul 1 2008, 03:42 PM ElkGroveDan QUOTE (3488 @ Jul 1 2008, 07:42 AM) No de... Jul 1 2008, 04:55 PM Del Palmer QUOTE (ElkGroveDan @ Jul 1 2008, 05:55 PM... Jul 1 2008, 05:01 PM Del Palmer QUOTE (3488 @ Jul 1 2008, 04:42 PM) No de... Jul 1 2008, 04:56 PM 3488 QUOTE (ElkGroveDan @ Jul 1 2008, 05:55 PM... Jul 1 2008, 06:47 PM tedstryk This is another Hubble view. During the 2001 obse... Jul 3 2008, 06:21 PM peter59 Dawn Completes Another Month of Thrusting
March 31... Apr 1 2008, 03:38 PM Stu QUOTE (peter59 @ Apr 1 2008, 04:38 PM) Da... Apr 1 2008, 04:11 PM Greg Hullender I just noticed that Dawn has substantially upgrade... Apr 30 2008, 04:01 AM Holder of the Two Leashes Yes, the diagrams are much better now, especially ... May 1 2008, 04:26 PM mps Meanwhile somewhere on the vicinity of Mars...
Da... May 30 2008, 11:46 AM punkboi New Dawn journal up:
http://dawn.jpl.nasa.gov/mis... Jun 30 2008, 03:17 AM nprev ...Dr. Rayman is a hoot! He sure can write an ... Jun 30 2008, 11:11 AM Greg Hullender QUOTE (nprev @ Jun 30 2008, 04:11 AM) ..... Jun 30 2008, 12:41 PM ugordan QUOTE (Greg Hullender @ Jun 30 2008, 02:4... Jun 30 2008, 12:48 PM MahFL He sounds like a typical slightly nutty scientist ... Jun 30 2008, 01:01 PM ilbasso He is indeed quite an entertaining writer.
Maybe ... Jun 30 2008, 12:10 PM djellison See this...
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That's a ... Jun 30 2008, 01:11 PM jasedm I'm just pleased that we get regular updates o... Jul 1 2008, 10:30 AM Del Palmer Latest Dawn update:
http://dawn.jpl.nasa.gov/miss... Aug 27 2008, 02:00 PM Greg Hullender Hmmm. He raises the point that Dawn will cross Ma... Aug 27 2008, 03:35 PM djellison The Mars flyby is mainly about changing the orbita... Aug 27 2008, 04:20 PM Greg Hullender That makes sense -- I'd wondered why the proje... Aug 27 2008, 04:44 PM 3488 Also as Doug before you said, it is about changing... Aug 27 2008, 07:25 PM Greg Hullender QUOTE (3488 @ Aug 27 2008, 12:25 PM) Also... Aug 29 2008, 06:02 PM BrianJ QUOTE (Greg Hullender @ Aug 29 2008, 06:0... Aug 29 2008, 09:15 PM Greg Hullender QUOTE (BrianJ @ Aug 29 2008, 01:15 PM) Hi... Aug 30 2008, 06:01 PM BrianJ QUOTE (Greg Hullender @ Aug 30 2008, 06:0... Aug 30 2008, 11:09 PM Greg Hullender QUOTE (BrianJ @ Aug 30 2008, 04:09 PM) Er... Sep 1 2008, 05:57 PM dmuller QUOTE (Greg Hullender @ Aug 31 2008, 04:0... Aug 31 2008, 02:08 AM dmuller QUOTE (Greg Hullender @ Aug 30 2008, 04:0... Aug 30 2008, 09:37 AM dmuller My two cents worth:
Dawn is picking up speed from... Aug 30 2008, 01:36 AM tasp I will reiterate my ignorance about such matters, ... Aug 30 2008, 06:04 AM siravan QUOTE (tasp @ Aug 30 2008, 01:04 AM) So, ... Aug 30 2008, 03:19 PM djellison QUOTE (siravan @ Aug 30 2008, 04:19 PM) I... Aug 30 2008, 03:36 PM Hungry4info @ tasp
They may not due that so as to conserve fu... Aug 30 2008, 04:12 PM vjkane QUOTE (Hungry4info @ Aug 30 2008, 05:12 P... Aug 30 2008, 04:58 PM tasp Just wanted to comment how much fun it is to have ... Aug 30 2008, 10:40 PM siravan Regarding ion engines and circular orbits, one may... Aug 31 2008, 02:59 AM dmuller Since there is much talk about the Dawn cruise, I ... Aug 31 2008, 04:37 AM Toma B I still haven't found what I was looking for..... Sep 1 2008, 09:08 PM Phil Stooke Earlier discussions of this mission, before launch... Sep 1 2008, 09:39 PM kwp QUOTE (Phil Stooke @ Sep 1 2008, 01:39 PM... Sep 2 2008, 04:01 AM Marz QUOTE (kwp @ Sep 1 2008, 11:01 PM) I aske... Oct 3 2008, 06:20 PM djellison Yes - an extensive campaign is planned for Dawn at... Oct 3 2008, 06:28 PM |
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