Help Shape the Future of Space Exploration

Join The Planetary Society Now Join Now!

Join our eNewsletter for updates & action alerts

   Please leave this field empty
Blogs

Headshot of Emily Lakdawalla

How to follow MESSENGER's orbit insertion today

Posted by Emily Lakdawalla

17-03-2011 14:11 CDT

Topics: Mercury, mission status, MESSENGER

The day is finally here! In only five and a half hours, at 00:45 on March 18 (according to the spacecraft's clock), MESSENGER must ignite its main engine and run though a third of its fuel in only 15 minutes in order to enter its planned orbit around Mercury. One-way light time will be about 9 minutes, so it'll be about 00:54 (just before 6 p.m., my time) when the Deep Space Network antennas in Canberra that'll be tracking MESSENGER's signal should hopefully see the Doppler shift in MESSENGER's broadcast frequency that'll signal that the burn is happening.I erred previously in saying that NASA TV would be covering this -- they won't. Turns out NASA TV will, in fact, be broadcasting tonight. Sigh.

So here is how I plan to follow MESSENGER's Mercury Orbit Insertion (referred to as "MOI" by acronym-happy NASA types):

I linked to the official mission timeline before, but here's a short version, of the key events I'll be looking for this evening.

Time (SCET, UTC)Time (ERT, PDT)Event
00:15 17:24 Turn spacecraft to burn attitude and configure attitude control for burn execution
00:25 17:34 Configure solar arrays for burn execution
00:40 17:49 Configure spacecraft fault protection for burn execution
00:45 17:54 Engine ignition
01:00 18:09 Engine shutdown
01:12 18:12 Turn to Earth and acquire post-maneuver data
01:23 18:32 Reconfigure spacecraft systems for normal post-maneuver operations

MESSENGER at Mercury

NASA / JHUAPL / CIW

MESSENGER at Mercury
 
See other posts from March 2011

 

Or read more blog entries about: Mercury, mission status, MESSENGER

Facebook Twitter Email RSS AddThis

Blog Search

LightSail - Flight by Light

Support LightSail!

In 2016, The Planetary Society’s LightSail program will take the technology a step further.

I want to help!

Featured Images

Expedition 42 crew poster

Soyuz TMA-15M goes vertical
Soyuz TMA-15M timelapse
Soyuz TMA-15M liftoff
More Images

Featured Video

View Larger »

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!