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Mercury Orbit Insertion, Events and Discussion leading up to MOI |
Nov 25 2009, 05:30 AM
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#1
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1018 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590 |
Excerpts from a new press release from the Messenger Team:
QUOTE Deep-Space Maneuver Positions MESSENGER for Mercury Orbit Insertion The Mercury-bound MESSENGER spacecraft completed its fifth and final deep-space maneuver of the mission today, providing the expected velocity change needed to place the spacecraft on course to enter into orbit about Mercury in March 2011. . . . today's maneuver began at 4:45 p.m. EST. Mission controllers at The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., verified the start of the maneuver about 12 minutes, 49 seconds later, when the first signals indicating spacecraft thruster activity reached NASA's Deep Space Network tracking station outside Goldstone, Calif. "The team was well-prepared for the maneuver," said MESSENGER Mission Systems Engineer Eric Finnegan, of APL. "Initial data analysis indicates an extremely accurate maneuver execution. After sifting through all the post-burn data I expect we will find ourselves right on target." --Greg |
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Jun 25 2010, 02:31 PM
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#2
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Member ![]() ![]() ![]() Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
Mercury is about to pass behind the Sun in its pursuit of Messenger at the halfway point between the 3rd flyby and orbit insertion. Mercury is at periapsis and Messenger at apoapsis. Go Messenger!
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Jun 25 2010, 03:49 PM
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#3
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
If it is the planet pursuing the craft, shouldn't it be "Go Mercury" ?
-------------------- If Occam had heard my theory, things would be very different now.
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Jun 27 2010, 01:29 AM
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#4
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Member ![]() ![]() ![]() Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
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Greg Hullender Mercury Orbit Insertion Nov 25 2009, 05:30 AM
MarkG Also from the release...
"A 3.3-minute firin... Dec 2 2009, 05:43 PM
maschnitz Oh, that's easy - it's called the Oberth e... Dec 2 2009, 07:32 PM
MarkG I think the Oberth effect is only an oblique influ... Dec 3 2009, 05:58 AM
brellis Is there a bigger/better communication window at p... Dec 3 2009, 07:42 AM
elakdawalla I know someone I can ask this question -- let me s... Dec 3 2009, 05:21 PM
elakdawalla That was quick! This is from Jim McAdams, MES... Dec 4 2009, 05:13 PM
MahFL "is required to place the spacecraft in the s... Dec 4 2009, 06:35 PM
elakdawalla QUOTE (MahFL @ Dec 4 2009, 10:35 AM) The ... Dec 4 2009, 06:40 PM
helvick Well I can't speak for anyone else but posts l... Dec 4 2009, 10:15 PM
Stu One of the (many) joys of UMSF (and, it has to be ... Dec 4 2009, 10:40 PM
remcook I think it's more efficient at Mercury'... Dec 5 2009, 11:07 AM
scalbers A quick read tells me the perihelion option would ... Dec 6 2009, 01:40 AM
infocat13 QUOTE (scalbers @ Dec 5 2009, 08:40 PM) A... Apr 7 2010, 05:50 PM
MarkG That was a great reply and discussion about captur... Dec 8 2009, 01:36 AM
Greg Hullender Just a few weeks over one year away now, Messenger... Feb 27 2010, 03:56 PM
Greg Hullender A new post from the Messenger team, noting that we... Mar 18 2010, 05:38 PM
Explorer1 And a new map of some of the newly named craters t... Mar 18 2010, 07:41 PM
MarkG Over the next few months, Mercury will appear to g... Apr 6 2010, 05:39 PM
ElkGroveDan I'd love it if someone could locate (or create... Apr 7 2010, 05:54 PM
djellison http://messenger.jhuapl.edu/the_mission/mo...andti... Apr 7 2010, 06:21 PM
Greg Hullender Yesterday was the sixth anniversary of Messenger... Aug 4 2010, 03:47 PM
stevesliva Still looking for Vulcanoids. From Twitter:
@MESS... Aug 12 2010, 09:48 PM
MarkG Messenger is pulling away from Mercury for the las... Nov 19 2010, 07:47 AM
peter59 100 days before orbit insertion !
I hope that... Dec 7 2010, 10:47 AM
peter59 One Year until Mercury Orbit Insertion !
Relax... Dec 19 2010, 09:37 AM
tasp It's just amazing they racked up over 4 billio... Dec 19 2010, 04:14 PM
MarkG Messenger is at its last Aphelion before capture i... Jan 25 2011, 02:18 PM
Phil Stooke 35 million km away... I wonder if there will be an... Jan 25 2011, 09:35 PM
MarkG At Messenger's current distance from Mercury, ... Feb 22 2011, 12:00 AM
jasedm A little over three weeks to go! - have been g... Feb 22 2011, 09:03 AM
stevesliva Come on, Juno, you're late. Feb 22 2011, 04:33 PM
jabe Been trying to find what the Delta-V is for the bu... Feb 23 2011, 09:16 PM

B Bernatchez QUOTE (jabe @ Feb 23 2011, 04:16 PM) Been... Feb 23 2011, 11:07 PM

jabe QUOTE (B Bernatchez @ Feb 23 2011, 11:07 ... Feb 24 2011, 07:43 PM
climber QUOTE (stevesliva @ Feb 22 2011, 05:33 PM... Feb 24 2011, 12:28 AM
machi QUOTE (climber @ Feb 24 2011, 01:28 AM) A... Feb 24 2011, 11:31 AM
ElkGroveDan QUOTE (machi @ Feb 24 2011, 03:31 AM) Fun... Feb 24 2011, 02:11 PM
machi Updated Feb 24 2011, 02:13 PM
SolarSystemRubble Quiet here in this thread, less that 2 weeks from ... Mar 7 2011, 02:53 AM
Astro0 Everyone's just cruisin' I guess! Mar 7 2011, 02:58 AM
nprev No news is good news now. I expect the future Mess... Mar 7 2011, 04:55 AM
stevesliva I thought we had established that Dione is totally... Mar 7 2011, 05:00 AM
Bjorn Jonsson There's not even a single planet/satellite/ast... Mar 7 2011, 11:27 AM
JohnVV QUOTE I thought we had established that Dione is t... Mar 8 2011, 05:09 AM
volcanopele Nope Rhea is boring. But it's monotonous surf... Mar 8 2011, 05:24 AM
Astro0 I've been rummaging through some boxes and fou... Mar 8 2011, 11:02 AM
Explorer1 I wonder what happens if you dial that number at t... Mar 8 2011, 10:53 PM
Phil Stooke I used to do that! For Voyager, not Mariner 1... Mar 9 2011, 01:10 PM
kwp QUOTE (Phil Stooke @ Mar 9 2011, 05:10 AM... Mar 10 2011, 02:22 AM
Hungry4info QUOTE (kwp @ Mar 9 2011, 08:22 PM) ...do ... Mar 10 2011, 07:32 AM
kwan3217 QUOTE (Hungry4info @ Mar 10 2011, 01:32 A... Mar 13 2011, 05:36 AM
nprev I'd hardly call that a "morbid" inte... Mar 10 2011, 02:41 AM
DFinfrock QUOTE (nprev @ Mar 10 2011, 02:41 AM) Kno... Mar 11 2011, 12:59 AM
gndonald She's getting closer Mar 12 2011, 03:04 PM
As old as Voyager QUOTE (DFinfrock @ Mar 11 2011, 12:59 AM)... Mar 13 2011, 08:43 AM
tasp The Pioneer Venus craft experienced large perturba... Mar 10 2011, 02:06 PM
Phil Stooke Ingenious idea but impossible! Remember, we d... Mar 13 2011, 12:16 PM
centsworth_II QUOTE (Phil Stooke @ Mar 13 2011, 07:16 A... Mar 13 2011, 04:39 PM
nprev If I understand things correctly (and I probably d... Mar 13 2011, 04:52 PM
Explorer1 The sun-grazer and long-period comets are an extre... Mar 13 2011, 07:13 PM
nprev Yeah, basically. The stuff way out there is barely... Mar 13 2011, 09:25 PM
siravan If I have calculated correctly, you need a delta-V... Mar 14 2011, 03:14 AM
MarkG At the present time (this Sunday Evening), Mercury... Mar 14 2011, 06:06 AM
dmuller The cheapest (in terms of energy) way to get a spa... Mar 14 2011, 08:54 AM
Astro0 Not far now!
BTW - I love Eyes on the Solar... Mar 15 2011, 04:16 AM
ElkGroveDan QUOTE (Astro0 @ Mar 14 2011, 09:16 PM) No... Mar 15 2011, 07:57 PM
mchan The orientation of the day side is to the right vs... Mar 15 2011, 04:43 AM
djellison QUOTE (mchan @ Mar 14 2011, 08:43 PM) EOT... Mar 15 2011, 04:55 AM
MarkG QUOTE (mchan @ Mar 14 2011, 09:43 PM) The... Mar 15 2011, 03:05 PM
mchan QUOTE (MarkG @ Mar 15 2011, 07:05 AM) Act... Mar 16 2011, 03:54 AM
Holder of the Two Leashes QUOTE (mchan @ Mar 15 2011, 09:54 PM) Agr... Mar 16 2011, 05:45 AM
Greg Hullender QUOTE (mchan @ Mar 15 2011, 08:54 PM) Agr... Mar 17 2011, 03:10 AM
nprev A minor milestone just occurred to me: Not only wi... Mar 16 2011, 04:03 AM
Ron Hobbs nprev,
The milestone is that every planet known t... Mar 16 2011, 04:44 AM
nprev QUOTE (Ron Hobbs @ Mar 15 2011, 08:44 PM)... Mar 16 2011, 06:11 AM
nprev And apologies for those who have seen this before,... Mar 16 2011, 07:43 AM
tasp nprev:
The galaxy beckons. Mar 16 2011, 12:27 PM![]() ![]() |
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