IPB

Welcome Guest ( Log In | Register )

Gut feeling...
SFJCody
post May 22 2008, 08:15 PM
Post #1


Member
***

Group: Members
Posts: 813
Joined: 8-February 04
From: Arabia Terra
Member No.: 12



Something I have not posted online before...
Back in 2003, as four spacecraft approached Mars, I wrote down on a piece of paper my guess (based on nothing more than public information & gut feeling) at what each craft's chance of success (either at landing or orbital insertion) might be.
My guesses were:

Nozomi: 15%
Beagle 2: 20%
MER A: 60%
MER B: 60%
Mars Express: 85%

In 2005 I guessed that MRO had a 90% chance of success

Now, in 2008, I'm going to put a figure on Phoenix. That figure is:

55%


What do you think? Too low? Too high?
Go to the top of the page
 
+Quote Post

Posts in this topic
- SFJCody   Gut feeling...   May 22 2008, 08:15 PM
- - john_s   Too low according to my gut, which reports in at a...   May 22 2008, 08:23 PM
|- - SFJCody   QUOTE (john_s @ May 22 2008, 09:23 PM) To...   May 22 2008, 08:26 PM
- - djellison   I've been trying to figure this out for myself...   May 22 2008, 08:54 PM
|- - ElkGroveDan   I'll say 83% which is the ratio of successful ...   May 22 2008, 09:03 PM
||- - centsworth_II   QUOTE (ElkGroveDan @ May 22 2008, 05:03 P...   May 22 2008, 09:23 PM
||- - SFJCody   QUOTE (ElkGroveDan @ May 22 2008, 10:03 P...   May 22 2008, 09:42 PM
||- - climber   QUOTE (ElkGroveDan @ May 22 2008, 11:03 P...   May 23 2008, 04:04 AM
||- - dvandorn   QUOTE (ElkGroveDan @ May 22 2008, 04:03 P...   May 23 2008, 04:41 AM
||- - climber   QUOTE (dvandorn @ May 23 2008, 06:41 AM) ...   May 23 2008, 04:53 AM
||- - kwan3217   Quotes removed. Better use the "add reply...   May 23 2008, 06:28 AM
||- - tim53   QUOTE (kwan3217 @ May 22 2008, 10:28 PM) ...   May 23 2008, 02:42 PM
||- - djellison   QUOTE (tim53 @ May 23 2008, 03:42 PM) I j...   May 23 2008, 03:22 PM
|- - tedstryk   With all the MPL discussion and the fact that we h...   May 22 2008, 09:04 PM
||- - mcaplinger   QUOTE (tedstryk @ May 22 2008, 01:04 PM) ...   May 22 2008, 09:43 PM
|- - ugordan   My greatest paranoia, when it comes to Mars lander...   May 22 2008, 09:08 PM
||- - ustrax   My gut feeling...having into account the previous ...   May 22 2008, 09:22 PM
|- - climber   QUOTE (djellison @ May 22 2008, 10:54 PM)...   May 24 2008, 12:51 PM
|- - nprev   QUOTE (climber @ May 24 2008, 04:51 AM) B...   May 24 2008, 12:59 PM
|- - climber   QUOTE (nprev @ May 24 2008, 02:59 PM) Oka...   May 24 2008, 02:31 PM
- - kwan3217   Around 90%. I have seen many movies and animations...   May 22 2008, 09:30 PM
- - SpaceListener   I have high trust about the Phoenix's EDL plan...   May 22 2008, 10:53 PM
- - nprev   Gotta go with 90% or greater. They've learned ...   May 23 2008, 02:20 AM
|- - centsworth_II   QUOTE (nprev @ May 22 2008, 09:20 PM) Got...   May 23 2008, 02:23 AM
- - nprev   Thanks for the nod, Climber, but it was actually C...   May 23 2008, 04:35 AM
- - mike   I say the odds of a successful landing are 100%.   May 23 2008, 04:45 AM
- - Decepticon   Nozomi: 10% Beagle 2: 50% MER A: 90% MER B: 90% Ma...   May 23 2008, 07:31 AM
|- - akuo   QUOTE (Decepticon @ May 23 2008, 08:31 AM...   May 23 2008, 08:49 AM
||- - ugordan   QUOTE (akuo @ May 23 2008, 10:49 AM) What...   May 23 2008, 09:24 AM
|- - climber   QUOTE (Decepticon @ May 23 2008, 09:31 AM...   May 23 2008, 10:35 AM
|- - MahFL   Frankly I am amazed ANY of them ever work, because...   May 23 2008, 12:49 PM
- - Zvezdichko   With regards to your opinion, the powered descent ...   May 23 2008, 07:38 AM
|- - Decepticon   QUOTE (Zvezdichko @ May 23 2008, 03:38 AM...   May 23 2008, 03:47 PM
|- - centsworth_II   QUOTE (Decepticon @ May 23 2008, 11:47 AM...   May 23 2008, 03:56 PM
- - Tesheiner   Well, after a very detailed and accurate analysis ...   May 23 2008, 08:02 AM
- - edstrick   I'll go with a guess at something like 85%. ...   May 23 2008, 08:10 AM
- - edstrick   Mars 6 (1973) used a similar system to Pathfinder ...   May 23 2008, 09:34 AM
- - djellison   5mph they keep saying - 2.5ish m/sec 2.5 m/sec to...   May 23 2008, 01:26 PM
- - Stu   To be honest I can't even bring myself to thin...   May 23 2008, 01:32 PM
- - djellison   I am genuinely beginning to get a physical reactio...   May 23 2008, 02:11 PM
- - nprev   Be chilly, you guys, keep an even keel...really, i...   May 23 2008, 02:23 PM
- - jamescanvin   Me too, I've already got that nervous-butterfl...   May 23 2008, 02:29 PM
- - Zvezdichko   Same here. I woke up early with a stomach pain ...   May 23 2008, 02:41 PM
- - nprev   What's weird is that I sweated blood before bo...   May 23 2008, 02:56 PM
- - tanjent   This is what markets are good for. We can all exch...   May 23 2008, 03:31 PM
|- - imipak   QUOTE (tanjent @ May 23 2008, 04:31 PM) A...   May 23 2008, 07:31 PM
|- - mcaplinger   QUOTE (imipak @ May 23 2008, 11:31 AM) Th...   May 23 2008, 08:36 PM
- - Zvezdichko   You are right, of course, but this technology hasn...   May 23 2008, 03:59 PM
|- - centsworth_II   QUOTE (Zvezdichko @ May 23 2008, 11:59 AM...   May 23 2008, 04:03 PM
|- - ugordan   QUOTE (centsworth_II @ May 23 2008, 06:03...   May 23 2008, 04:19 PM
- - nprev   One thing to remember is that flight control algor...   May 23 2008, 04:25 PM
|- - Zvezdichko   QUOTE (nprev @ May 23 2008, 04:25 PM) The...   May 23 2008, 05:44 PM
- - climber   This topic is definitely the "hotest" to...   May 23 2008, 04:30 PM
|- - MahFL   So if one of the legs hits a 0.5 meter high rock d...   May 23 2008, 05:03 PM
|- - centsworth_II   QUOTE (MahFL @ May 23 2008, 01:03 PM) So ...   May 23 2008, 05:25 PM
|- - ustrax   QUOTE (MahFL @ May 23 2008, 06:03 PM) So ...   May 23 2008, 06:14 PM
- - Alex Chapman   My personal feeling is that the landing is going t...   May 23 2008, 09:17 PM
- - centsworth_II   I love peanuts, I eat them every day. I'm eati...   May 23 2008, 10:01 PM
|- - SFJCody   QUOTE (centsworth_II @ May 23 2008, 11:01...   May 23 2008, 10:18 PM
- - climber   Back to the original question, if one would try to...   May 24 2008, 03:10 AM
- - Nice Guy   I worked on MPL, and MER (and Mars Observer as wel...   May 24 2008, 05:12 AM
|- - centsworth_II   QUOTE (Nice Guy @ May 24 2008, 01:12 AM) ...   May 24 2008, 05:40 AM
|- - climber   QUOTE (Nice Guy @ May 24 2008, 07:12 AM) ...   May 24 2008, 12:58 PM
- - climber   Welcome to UMSF Nice Guy! You couldn't hav...   May 24 2008, 05:25 AM
- - edstrick   The EDL landing simulation video is 1.) time compr...   May 24 2008, 09:59 AM
|- - dmuller   QUOTE (edstrick @ May 24 2008, 07:59 PM) ...   May 24 2008, 10:46 AM
|- - ugordan   QUOTE (dmuller @ May 24 2008, 12:46 PM) I...   May 24 2008, 10:56 AM
|- - dmuller   QUOTE (ugordan @ May 24 2008, 08:56 PM) I...   May 24 2008, 11:09 AM
- - Sunspot   QUOTE (SFJCody @ May 22 2008, 09:15 PM) N...   May 24 2008, 11:01 AM
- - Zvezdichko   Beagle 2 - I gave about 30% MER A or MER B - 85%, ...   May 24 2008, 11:06 AM
|- - Doc   QUOTE (Zvezdichko @ May 24 2008, 02:06 PM...   May 24 2008, 11:15 AM
|- - Zvezdichko   QUOTE (Doc @ May 24 2008, 11:15 AM) This ...   May 24 2008, 11:21 AM
||- - tedstryk   QUOTE (Zvezdichko @ May 24 2008, 12:21 PM...   May 24 2008, 01:07 PM
|- - dmuller   QUOTE (Doc @ May 24 2008, 09:15 PM) This ...   May 24 2008, 11:32 AM
|- - Doc   QUOTE (dmuller @ May 24 2008, 02:32 PM) I...   May 24 2008, 11:50 AM
|- - Alex Chapman   QUOTE (Doc @ May 24 2008, 12:50 PM) From ...   May 24 2008, 03:45 PM
|- - imipak   QUOTE (Alex Chapman @ May 24 2008, 04:45 ...   May 24 2008, 05:42 PM
- - Doc   A quote from the recent post on the Planetary Soci...   May 24 2008, 11:06 AM
- - Doc   BTW-will the mission website provide realtime data...   May 24 2008, 11:28 AM
|- - SFJCody   Seems strange that powered descent + landing legs ...   May 24 2008, 11:32 AM
- - Zvezdichko   I think it's because the powered descent hasn...   May 24 2008, 11:47 AM
- - PhilCo126   Well, it's not just EDL but EDFL ( Entry + Des...   May 24 2008, 12:10 PM
- - Juramike   QUOTE (climber @ May 24 2008, 08:58 AM) W...   May 24 2008, 04:32 PM
- - Nice Guy   I would like to point out that we try to learn fro...   May 25 2008, 03:18 AM
- - edstrick   There is one point of concern regarding hearing th...   May 25 2008, 10:45 AM
|- - Stu   QUOTE (edstrick @ May 25 2008, 11:45 AM) ...   May 25 2008, 10:48 AM
- - Shaka   I've got a gut feeling I ate too many peanuts....   May 25 2008, 06:59 PM
- - marsbug   I'm still on my first bag, good luck and godsp...   May 25 2008, 07:28 PM
- - ElkGroveDan   Let's take it over to the EDL discussion http...   May 25 2008, 10:17 PM


Closed TopicStart new topic

 



RSS Lo-Fi Version Time is now: 18th April 2024 - 04:28 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.