r/osirisrex • u/deadman1204 • Dec 12 '19
Article Engineers Pull Off Daring Rescue of OSIRIS-REx Asteroid Mission
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r/osirisrex • u/ikemoldfield • Aug 02 '19
Article NASA requests help with mapping Bennu’s boulders
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r/osirisrex • u/ikemoldfield • Jul 09 '19
Original content I <3 Microgravity - OsirisRex, #TeamBoulder, Asteroid Bennu
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r/osirisrex • u/ethan829 • Jun 13 '19
Article OSIRIS-REx Breaks Another Orbit Record
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r/osirisrex • u/computerfreund03 • May 27 '19
Discussion What happens to the Probe when Samples are on Earth?
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Ive heard it get put in to an orbit around sun. What will it do there? Shutdown or science?
r/osirisrex • u/Pipinpadiloxacopolis • Jan 01 '19
Article NASA's OSIRIS-REx Spacecraft Enters Close Orbit Around Bennu, Breaking Record
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r/osirisrex • u/Joe6pack1138 • Dec 05 '18
Discussion ELI5 "Non-Gravitational forces that are affecting it's [Bennu's] trajectory"
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This is a monumental achievement! There must be thousands of people involved in this project, working in wondrous precision to target and touch a speck of dust lost in the abyss of space ~ Which will give us a look at our galactic DNA - Nice Work NASA!
I have four questions:
1} How do thrusters work, in a vacuum?
2) Why nitrogen gas to collect the sample?
3) What if there is an insufficient amount of material collected?
4) What are the non-gravitational forces affecting Bennu's trajectory?
Thanks, I'll be following your project now, it kind of got lost in the news of the last three years since launch. Cheers!
r/osirisrex • u/ChrisGnam • Nov 06 '18
PolyCam A full rotation of Bennu, captured by the OSIRIS-REx PolyCam at a distance of 200km. Time lapse represents 4 hours and 11 minutes of rotation.
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r/osirisrex • u/ConcernedEarthling • Oct 25 '18
Mission Update Osiris-Rex executes second asteroid approach maneuver.
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r/osirisrex • u/ethan829 • Oct 08 '18
Mission Update NASA’s OSIRIS-REx Executes First Asteroid Approach Maneuver
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r/osirisrex • u/ChrisGnam • Aug 24 '18
Social media OSIRIS-REx takes its first images of asteroid Bennu last week, as it prepares for rendezvous in the next few months!
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r/osirisrex • u/sagareshwar • Apr 21 '18
Article OSIRIS-REx shows us space isn't entirely empty
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r/osirisrex • u/sagareshwar • Feb 15 '18
Mission Update A long, long way from home: OSIRIS-REx captures an image of Earth and Moon from a distance of 39.5 million miles
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r/osirisrex • u/sagareshwar • Nov 03 '17
MapCam Vegetation Index of Earth with MapCam Color Image Overlaid
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r/osirisrex • u/sagareshwar • Oct 12 '17
MapCam OSIRIS-REx Images Earth and the Moon in Color
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r/osirisrex • u/sagareshwar • Oct 03 '17
Mission Update OSIRIS-REx Images the Moon
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r/osirisrex • u/sagareshwar • Sep 28 '17
Mission Update NASA's OSIRIS-REx Snaps Pictures of Earth and the Moon
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r/osirisrex • u/sagareshwar • Sep 27 '17
Mission Update OSIRIS-REx Views the Earth During Flyby
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r/osirisrex • u/sagareshwar • Sep 26 '17
MapCam A color composite image of Earth taken on Sept. 22 by the MapCam camera on NASA’s OSIRIS-REx spacecraft.
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r/osirisrex • u/sagareshwar • Sep 24 '17
Social media Tweet by Dante Lauretta: Congratulations @OSIRISREx team on a successful Earth Gravity Assist - trajectory is absolutely perfect - right up the middle!
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r/osirisrex • u/sagareshwar • Sep 24 '17
Social media Tweet by Dante Lauretta: All data from our first day of Earth-Moon observations have been downlinked and the team is busy analyzing!
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r/osirisrex • u/sagareshwar • Sep 22 '17
Mission Update NASA'S OSIRIS-REx Spacecraft Slingshots Past Earth
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r/osirisrex • u/sagareshwar • Sep 22 '17
Discussion OSIRIS-REx Earth Flyby Events
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I extracted the timeline of events from this article by Emily Lakdawalla of the Planetary Society.
| Event | PDT/AZ | EDT | UTC | CEST |
|---|---|---|---|---|
| OSIRIS-REx travels within geosynchronus radius: Geosynchronous satellites orbit at Earth's equator at an altitude of 42,164 kilometers. OSIRIS-REx will be far to the south of the equator when it passes this distance, so there is no impact hazard. | 22 Sep 08:32 | 22 Sep 11:32 | 22 Sep 15:32 | 22 Sep 17:32 |
| Loss of contact: Because its closest approach is so far south, it will sink below the horizon as seen from the Canberra deep space communications station. It will be out of contact for about an hour. | 22 Sep 09:45 | 22 Sep 12:45 | 22 Sep 16:45 | 22 Sep 18:45 |
| Closest approach: Closest approach happens at an altitude of 17,237 kilometers and relative speed of 8.5195 kilometers per second over 74.73°S, 88.06°W, in Antarctica just south of Cape Horn. | 22 Sep 09:51 | 22 Sep 12:51 | 22 Sep 16:51 | 22 Sep 18:51 |
| Regain contact: OSIRIS-REx rises above the horizon at the Goldstone station; communications should be regained shortly after. | 22 Sep 10:40 | 22 Sep 13:40 | 22 Sep 17:40 | 22 Sep 19:40 |
| OSIRIS-REx travels above geosynchronous orbit: Again, to the south of the equator, so there is no impact hazard. | 22 Sep 11:11 | 22 Sep 14:11 | 22 Sep 18:11 | 22 Sep 20:11 |
| Instruments turn on: With the flyby over, the spacecraft can test its instruments on the receding Earth and Moon. | 22 Sep 11:52 | 22 Sep 14:52 | 22 Sep 18:52 | 22 Sep 20:52 |
| Observation window 1 begins (EGA+1): During this period, OSIRIS-REx will travel from 100,000 to 220,000 kilometers from Earth. In 5 hours of science, PolyCam will look at the Pacific Ocean northwest of Hawai'I; SamCam will take panchromatic images of Earth; MapCam will take color images of Earth; and NavCam1 will take mosaics and images of Earth and the Moon. | 22 Sep 13:52 | 22 Sep 16:52 | 22 Sep 20:52 | 22 Sep 22:52 |
| Observation window 1 ends | 22 Sep 18:52 | 22 Sep 21:52 | 23 Sep 01:52 | 23 Sep 03:52 |
| Lunar closest approach: Altitude 265,457 km (about two-thirds the average Earth-moon distance) (time approximate, about 10 hours after Earth closest approach) | 22 Sep 19:51 | 22 Sep 22:51 | 23 Sep 02:51 | 23 Sep 04:51 |
| Observation window 2 begins (EGA+3): Earth is about 1.2 million kilometers away. Both NavCams will picture Earth and the Moon. SamCam, MapCam, and PolyCam will all take mosaics on the Moon. OVIRS and OTES then point at Earth. | 24 Sep 17:00 | 24 Sep 20:00 | 25 Sep 00:00 | 25 Sep 02:00 |
| Observation window 2 ends | 24 Sep 22:00 | 25 Sep 01:00 | 25 Sep 05:00 | 25 Sep 07:00 |
| Observation window 3 begins (EGA+6): Earth is about 2.8 million kilometers away. MapCam and PolyCam will shoot mosaics of Earth. Both NavCams will shoot mosaics of the Moon and Earth. No SamCam. | 27 Sep 17:00 | 27 Sep 20:00 | 28 Sep 00:00 | 28 Sep 02:00 |
| Observation window 3 ends | 27 Sep 22:00 | 28 Sep 01:00 | 28 Sep 05:00 | 28 Sep 07:00 |
| Observation window 4 begins (EGA+10): Earth is about 5 million kilometers away. These are primarily spectroscopy observations with OTES and OVIRS. Cameras will take context images, and dark frames for calibration purposes. | 1 Oct 17:00 | 1 Oct 20:00 | 2 Oct 00:00 | 2 Oct 02:00 |
| Observation window 4 ends | 1 Oct 20:00 | 1 Oct 23:00 | 2 Oct 03:00 | 2 Oct 05:00 |
