[X] My Assistant

[Guest_Zvezdichko_*]

Daniel,

I found something that may be useful:

http://www.youtube.com/watch?v=sUCJkF9aW7g

This clip is almost 7 minutes long and in my opinion represent the EDL sequence relatively accurately.

EDIT : I missed the upper post with the simulation movie. Unfortunately it doesn't display on my machine correctly, checking it several hours later on another console.

Best wishes,

Svetlio.

[djellison]

I think the Phoenix teams own EDL real-time-with-height/speed is more useful to be honest.


Daniel - I say add an event into the time line that just says 'Beginning of Phoenix EDL simulation movie' or something like that, and we can all click play together


Doug

[Stu]

EDITED: I am going to get some music links during landing day at spacEurope, if you guys have any suggestions those are welcome...it doesn't need to be Mars related...I'm choosing some positive, strong tracks...

Here's one for ya... a YouTuber made an alternative opening title sequence for ENTERPRISE... events are now shown in proper chronological order, and there's s well-deserved guest appearance by... well, you'll just have to watch it, won't you..?

[dmuller]

A rather long post with several replies:

That's one of the most exciting, inspiring and TERRIFYING animations I've seen from any mission

I agree it's by far the best. I actually wrote my script because real (i.e. not teaser) animations like that were hard to find, and I cannot recall any landing where there is some sort of speed/altitude continuous progress shown.
Actually, I found the animation COMFORTING rather than TERRIFYING ... I did test-"land" my script, and I knew speed and altitude will go down to 0 at landing (I programmed it, didn't I), but the numbers were running so fast until touchdown that I really thought it's gonna "crash".

I am going to get some music links during landing day at spacEurope, if you guys have any suggestions those are welcome...it doesn't need to be Mars related...I'm choosing some positive, strong tracks...

IMHO the best space related background music is still from the IMAX movie "Hail Columbia". Full of power and optimism. Unfortunately it's not freeware :-(

I found something that may be useful:

I think the Phoenix teams own EDL real-time-with-height/speed is more useful to be honest.

Thanks Svetlio. Yes I saw it as well, but the Phoenix team's own EDL gives me altitude and speed second by second. Will spend most of my weekend plugging the numbers from there

I say add an event into the time line that just says 'Beginning of Phoenix EDL simulation movie' or something like that, and we can all click play together

I will do that

We are now 8 days 22 hours 20 minutes (ERT) from landing on Mars. Altitude above Mars 2.08 million km, distance to fly 16.9 million km. It was a mere 286 days ago when the final launch poll heard "Go Phoenix".

Daniel

[dmuller]

needless to say the landing scenario in the EDL movie does NOT match the nominal timeline published earlier this week. Doug, you're gonna be landing a few times on Mars (the movie, the script which follows the nominal timeline, and NASA TV)

[climber]

I'll realy enjoy these views! I hope we'll be surprised anyway.

I have a question here : what kind of tones do we expect during EDL?
Will they be similar to the MERs which mean more or less this way :
Differents tones for speed reductions
Parachutte opens
Heatshield jetissons
Legs deploy
Radar starts
Lander separates
Retros start
Engines stop (this will be actualy different from MERs)
Can we expect to receive basicaly this (I guess from the orbiters) or something different? Will they be played "live" from the orbiters?
Anyway, for the one who want to listen again Spirit landing (TPS version), here it is http://www.planetary.org/radio/show/00000100/

[djellison]

what kind of tones do we expect during EDL?

We're not getting tones, it's UHF telemetry directly, and in real time, via Mars Odyssey.

Doug

[Julius]

I remember the Spirit and Opportunity landings...was up at 4 am..was in tears

[nprev]

It was early evening in Alaska for both of the MER landings (well, that time of the year up there it's evening almost all the time!), and I drove my wife & stepson nuts by alternately running upstairs to see CNN coverage & running back downstairs to my computer to try to get the NASA TV stream to work...good times, good times!!!

[climber]

We're not getting tones, it's UHF telemetry directly, and in real time, via Mars Odyssey.
Doug

Thank you Doug, I didn't get it right before. Anyway, I think the most important milestones will correspond to the (MER) tones like : parachute opens, heatshield jetissons, etc...
Difference could be in the Dopler that will tell us about the slow down "live". We didn't have this with the MER, didn't we ?

[dmuller]

Engineers are considering a maneuver that would nudge the flight path of Phoenix toward a targeted landing spot 18 kilometers to the northwest, with the goal of hitting the center of the certified landing zone. A final decision on the trajectory maneuver will be made Saturday afternoon, with execution at 9:00 pm PDT.

Does anybody know if this happened, and if it affects the landing and/or entry interface time?

Anyway, based on the EDL movie and previous timeline, I can add the following additional events that I have worked out (thus no guarantee for accuracy) .. all in UTC:


L....| SCET.................| ERT..................| Event
.....| 23-May-2008 13:18:00 | 23-May-2008 13:33:09 | Enters Mars Sphere of Influence (SOI)
.....| 25-May-2008 11:25:00 | 25-May-2008 11:40:20 | Gravitational tug of Mars exceeds that of the Sun
.....| 25-May-2008 22:00:00 | 25-May-2008 22:00:00 | NASA TV raw coverage (media channel) starts
.....| 25-May-2008 22:30:00 | 25-May-2008 22:30:00 | NASA TV coverage (public channel) with comments
.....| -------------------- | 25-May-2008 23:31:13 | Entry Interface in Spacecraft Event Time
.....| -------------------- | 25-May-2008 23:38:32 | Landing in Spacecraft Event Time
.....| 25-May-2008 23:29:13 | 25-May-2008 23:44:33 | Mars Express acquires Phoenix signal
-450 | 25-May-2008 23:31:02 | 25-May-2008 23:46:22 | EDL movie - press play now
-410 | 25-May-2008 23:31:42 | 25-May-2008 23:47:02 | Maximum speed
-358 | 25-May-2008 23:32:34 | 25-May-2008 23:47:54 | Peak Deceleration
-335 | 25-May-2008 23:32:57 | 25-May-2008 23:48:17 | Peak Heating
-236 | 25-May-2008 23:34:36 | 25-May-2008 23:49:56 | Enters 3-sigma landing ellipse if landing is nominal
.....| 25-May-2008 23:38:32 | 25-May-2008 23:53:52 | Touchdown on Mars [46sec]
+006 | 25-May-2008 23:38:38 | 25-May-2008 23:53:58 | Helium venting [46sec]
+620 | 25-May-2008 23:41:33 | 25-May-2008 23:56:53 | Mars Express looses Phoenix signal
.....| 26-May-2008 02:14:40 | 26-May-2008 02:30:00 | Possibly first picture of Phoenix solar panel


Daniel

EDIT: neat revised logo Doug, very fitting!

[Phil Stooke]

"Does anybody know if this happened"

Yes, it did - reported on Twitter.

Phil

[Decepticon]

Just to clarify will NASA television as seen on my Satellite Dish-network will carry this live?

I don't want to be Disappointed with 24/7 ISS broadcast.

[edstrick]

http://www.nasa.gov/multimedia/nasatv/MM_NTV_Breaking.html
NASA TV Schedule
The programs listed below are changes to the regular Daily Program Schedule.
All times are Eastern U.S. time.
(non phoenix posts have been deleted. The media channel is not carried on Dish Network or Direct-TV. They carry the Public channel)

May 22, Thursday
2:30 p.m. - Mars Phoenix Lander Briefing - Entry Descent and Landing Overview - JPL (Public and Media Channels)

May 24, Saturday
3 p.m. - Mars Phoenix Lander Briefing - Landing Preview - JPL (Public and Media Channels)

May 25, Sunday
3 p.m. - Mars Phoenix Lander Briefing - JPL (Public and Media Channels)
6 p.m. - Mars Phoenix Lander Landing Coverage - JPL (Media Channel)
6:30 - 8:45 p.m. - Mars Phoenix Lander Landing Coverage - JPL (Public Channel)
9:30 p.m. - Mars Phoenix Lander Briefing - First Downlink of Data - JPL (Public and Media Channels)

May 26, Monday
12 a.m. - Mars Phoenix Lander Post Landing Briefing - JPL (Public and Media Channels)
2 p.m. - Mars Phoenix Lander Update Briefing - JPL (Public and Media Channels)

[ustrax]

Eastern US?
Pacific Daylight?
Why can't they use just one single time?!

For those (for me...I get lost with this conversions...if gets useful for you the better...) in this side of the ocean I've created a landing schedule in UTC.

Guess I'll have to do the same for NASATV Schedule now...