Posts: 3693 From: Belfast, United Kingdom Registered: Feb 2002
posted 09-27-2023 03:47 PM
It does sound like they have considered the possibility of contamination (but were those precautions always planned, or were any of them added to address the issue of the "one-way door" that apparently wasn't?)
I can't help thinking about Jack Schmitt's concerns about the effects of lunar dust on the seals and joints of the Apollo EVA suit. As I recall, he thought the suits would have handled a fourth EVA, but maybe not 5 or 6...
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 09-27-2023 04:00 PM
I believe the contamination practices were driven more by what NASA experienced with the Genesis mission and its recovery than what they saw happen at Bennu.
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 09-28-2023 05:10 PM
quote:Originally posted by Robert Pearlman: Michael is the son of cS member Larry Puzio (cS: lspooz)!
After years of anticipation and hard work by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security – Regolith Explorer) team, a capsule of rocks and dust collected from asteroid Bennu returned to Earth on Sept. 24 in a targeted area of the Department of Defense’s Utah Test and Training Range near Salt Lake City.
A few hours before the landing, OSIRIS-REx took some of its final views of its own sample return capsule.
Above: This image of the OSIRIS-REx sample return capsule still attached to the spacecraft’s instrument deck was captured by the spacecraft’s StowCam camera on Sept. 23 at 10:37:55 a.m. EDT (14:37:55 UTC), less than 24 hours before the capsule’s release. (NASA/Goddard/University of Arizona/Lockheed Martin)
Above: This black-and-white sequence of OSIRIS-REx’s sample return capsule descent toward Earth comes from TAGCAMS’s NavCam 1 and was taken in the moments after the capsule’s release from the spacecraft on Sept. 24, 2023. The Sun is visible at the top of the frame, and a thin “crescent Earth” can be seen at the left edge of the image. This sequence of images has been processed to remove most of the scattered sunlight, bring out more detail of the capsule and release debris cloud, and prevent the Earth crescent from saturating. (NASA/Goddard/University of Arizona/Lockheed Martin)
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 10-10-2023 10:32 AM
I am confused about what is happening tomorrow regarding the OSIRIS-REX asteroid samples. I have read that there will be an Unveiling Event at 11am EDT and a media teleconference at 2:30pm EDT. Is this correct? Will both be televised?
I am assuming that the Unveiling Event will just show the asteroid sample materials. Will the total mass of the samples be given at this time or must we wait until the Media Teleconference later in the day? Robert, since this will be in Houston, will you be attending?
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 10-10-2023 10:43 AM
The 11 a.m. EDT event on Wednesday (Oct. 10) will provide a first look at the sample returned to Earth and the science team will discuss an initial analysis of the sample (including, presumably, the total mass and other statistics as they are known). The event will air on NASA TV (and we will have an embedded video link here before the event begins).
The 2:30 p.m. EDT media teleconference will be an opportunity for the press to ask further questions about what is revealed at the unveiling event. Audio of the call will stream live (and again, we will have an embedded feed before it begins tomorrow).
I do intend to be at Johnson for the morning event.
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 10-11-2023 07:10 AM
NASA video
The first asteroid sample collected in space by a U.S. spacecraft and brought to Earth is unveiled to the world at NASA’s Johnson Space Center in Houston on Wednesday, Oct. 11.
The science team from NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security – Regolith Explorer) mission will provide results from an initial analysis of the sample, which landed on Sunday, Sept. 24, in the Utah desert. News conference participants include:
NASA Administrator Bill Nelson
Lori Glaze, NASA Planetary Directorate Science Division Director
Dante Lauretta, OSIRIS-REx principal investigator, University of Arizona, Tucson
Francis McCubbin, OSIRIS-REx Head Astromaterials curator, NASA Johnson
Daniel Glavin, OSIRIS-REx sample analysis lead, NASA Goddard Space Flight Center, Greenbelt
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 10-11-2023 12:27 PM
NASA photo release (NASA/Erika Blumenfeld and Joseph Aebersold)
A view of the outside of the OSIRIS-REx sample collector. Sample material from asteroid Bennu can be seen on the middle right. Scientists have found evidence of both carbon and water in initial analysis of this material. The bulk of the sample is located inside.
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 10-11-2023 04:48 PM
NASA media teleconference audio
Following a public unveiling of the United States’ first asteroid sample, NASA hosted a media teleconference to share more findings from the science team.
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 11-27-2023 11:52 AM
Has there been any progress getting the last two fasteners out and disassembling the OSIRIS-REX TAGSAM head? It has been almost five weeks since we have last heard anything about the disassembly and collection process.
Robert Pearlman Editor
Posts: 52040 From: Houston, TX Registered: Nov 1999
posted 11-27-2023 12:44 PM
I expect there may be an update available when the next Bennu samples go on public display (Nov. 30 in Arizona and on a date still be announced in Houston).
lspooz Member
Posts: 480 From: Greensboro, NC USA Registered: Aug 2012
posted 12-05-2023 08:32 PM
...NASA found that inconsistent wiring label definitions in the design plans likely caused engineers to wire the parachutes' release triggers such that signals meant to deploy the drogue chute fired out of order.
Wow, that was a close call (and explains why the drogue chute seems to have been deployed, with the drogue and its cover found approximately 120 meters from the SRC).
ejectr Member
Posts: 1999 From: Killingly, CT Registered: Mar 2002
posted 12-06-2023 11:31 AM
Good thing it landed safely or there would be a couple engineers for hire.
Blackarrow Member
Posts: 3693 From: Belfast, United Kingdom Registered: Feb 2002
posted 12-06-2023 11:53 AM
Although the delivery was successful, the landing sequence did not go entirely according to plan...
NASA's comment seems to be an extreme example of understatement.
I know it's easily said after the event, but when I watched the event live, I wasn't sure if the drogue had failed to deploy, or if the capsule was descending on the drogue only, with no main parachute deployed. As the system was clearly designed to require both drogue and main parachutes, it seems like only the "robustness" of the system allowed a safe landing, but in non-scientific terms, it looks like NASA got lucky.
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 12-06-2023 12:36 PM
As I watched the OSIRIS-REX return capsule plummet through the atmosphere after the drogue was supposed to have been deployed, I started having a serious flashback of seeing the Genesis return capsule auger into the desert floor back in Sept. 2004. Thank goodness this mission ended better.
Blackarrow Member
Posts: 3693 From: Belfast, United Kingdom Registered: Feb 2002
posted 12-06-2023 04:33 PM
Yes, I was thinking of "Genesis" too!
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 01-11-2024 08:12 PM
Apparently technicians finally removed the two "stuck" fasteners holding the TAGSAM together today. Now the disassembly process can continue.
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 01-23-2024 10:20 AM
I would be interested in finding out why those last two fasteners stuck so tenaciously. Was it due to contamination, cross-threading, cold welding, what?
The amount of "extra" material found inside of the TAGSAM head is a real boon to scientists still awaiting their allotment. The papers they write should be fascinating to read.
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012
posted 02-15-2024 02:29 PM
I see that NASA has announced that the total mass of the OSIRIS-REX sample return from the asteroid Bennu is 4.29 ounces (121.6 grams), almost double that of the "success" mass goal of 60 grams.
apolloengr New Member
Posts: 5 From: Boulder, CO, USA Registered: Jul 2016
posted 03-09-2024 12:57 PM
About 10 years ago, I received an e-mail from NASA announcing the OSIRIS-REx project. Included was an option to sign up to have your name put aboard both the spacecraft and return lander. You also were to get certificates of participation.
I thought that would be a fun thing to do with my grandkids, so I signed myself, grandson Nicholas (6) and granddaughter Sophia (10) up. I received our three certificates via e-mail, all signed by Bill Nye and a Dr. Dante Loretta, the principal investigator.
Last September, I received an e-mail from Sophia, now a 20-year old sophomore at the University of Arizona asking me if I was aware of this spacecraft that had been to an asteroid which was going to land very soon and that one of her professors at UA was "involved" in the project. She did not realize I had been following the mission closely for 7 years, including the launch, the arrival, the sample pickup, and the departure, so I was well prepared for the landing in Utah.
I reminded her about the certificates and her name being aboard the spacecraft. She was naturally quite surprised, since it had been 10 years since I first told her about it. Upon examining the certificates, I realized that her astrobiology professor at Arizona was the principal investigator who had signed it 10 years earlier! I watched the landing, and Sophia, after several weeks of waiting for Dr. Loretta to return from Houston, took her certificate in and had him resign it as well as some other mission souvenirs he gave her.
There's an extra bonus; unknown to me, she took my certificate in and had him resign it, too. Then she had it framed for my Christmas present. It is now up on my den wall with all of my Apollo memorabilia. And for my recent birthday, she gave me an OSIRIS-REx medallion that Dr. Lauretta gave her to give to me.
Headshot Member
Posts: 1291 From: Vancouver, WA, USA Registered: Feb 2012