Remote NDT on Mars using Telerobotic scanners
Date: 26 Jun 1997 19:07:03 -0700
From: Yoseph Bar-Cohen
To: nde@swrinde.nde.swri.edu (IPM Return requested) (Receipt notification requested)
Subject: NASA-JPL's Mars Pathfinder on July 4
Sender: owner-nde@swrinde.nde.swri.edu
Mark your calendar if you would like to know about the upcoming
landing on Mars. On July 4, 1997, at approximately 10:07 a.m. U.S.
Pacific Standard Time (Earth receive time), the Mars Pathfinder
spacecraft will land on Mars. The follows is some of the expected
events that will occur:
shortly before landing
----------------------
. Spacecraft rapidly decelerates in the atmosphere using the
heatshield . Parachute deploys
. Heat shield separates and Lander releases from backshell
. Airbags inflate
. Rocket-assisted deceleration (RAD) engines fire. Bridle cable is cut
10:07 a.m.: Landing on surface of Mars in Ares Vallis. Transmitter
turned off shortly after landing to save power.
After touchdown
--------------
. Lander bounces and rolls to a stop
. Airbags deflate and are retracted up against the petals . Petals
open
2 p.m.: Sunrise at the landing site.
A rover on board the Lander will be doing local NDE and send data to
earth. The type of operation we can do at a distance of 500 millions
km distance from earth could be adapted to remote inspection on earth
using telerobotic scanners.
Yosi
JPL
1. July 1997 Rolf Diederichs, rd@ultrasonic