Author Topic: NASA Restore-L LEO servicing  (Read 10987 times)

Offline arachnitect

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NASA Restore-L LEO servicing
« on: 06/17/2015 04:31 AM »
Descendent of RRM I guess.

Hadn't heard of it until today.
« Last Edit: 08/08/2017 03:17 PM by gongora »

Offline A_M_Swallow

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Re: NASA Restore-L LEO servicing
« Reply #1 on: 06/17/2015 04:54 AM »
The refuelling hardware on the Restore-L are government furnished equipment. Are they a copy of the equipment attached to the ISS's Dextre? Or something from the Department of Defence?

Online TrevorMonty

Re: NASA Restore-L LEO servicing
« Reply #2 on: 06/17/2015 04:58 AM »
Sounds like this is taylor made for OrbitalATK ViviSat. The picture even looks the same.

http://www.parabolicarc.com/2015/03/22/sat-servicing/


Offline arachnitect

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Re: NASA Restore-L LEO servicing
« Reply #3 on: 06/17/2015 02:28 PM »
The refuelling hardware on the Restore-L are government furnished equipment. Are they a copy of the equipment attached to the ISS's Dextre? Or something from the Department of Defence?

The people in charge of this are the people doing the experiments on ISS, so it's probably pretty similar to that.

Offline mainmind

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Re: NASA Restore-L LEO servicing
« Reply #4 on: 12/16/2015 03:05 PM »
This also gets a mention in the 2016 omnibus budget with $133 million for the effort:

http://spacenews.com/nasa-receives-19-3-billion-in-final-2016-spending-bill/

And apparently has a request for information floating out there that is related to the Asteroid Redirect mission:
http://www.coloradospacenews.com/nasa-seeks-additional-information-for-asteroid-redirect-mission-spacecraft/


Offline savuporo

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Re: NASA Restore-L LEO servicing
« Reply #5 on: 04/25/2016 02:55 AM »
NASA site

http://ssco.gsfc.nasa.gov/restore-l.html
LAUNCH DATE: Late 2019

Darpa RSGS has very similar goals. Also looks like DLR signed a 4.5M eur DEOS Phase B2 contract recently with Airbus
Orion - the first and only manned not-too-deep-space craft

Offline Comga

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Re: NASA Restore-L LEO servicing
« Reply #6 on: 11/27/2016 08:15 PM »
The refuelling hardware on the Restore-L are government furnished equipment. Are they a copy of the equipment attached to the ISS's Dextre? Or something from the Department of Defense?

The people in charge of this are the people doing the experiments on ISS, so it's probably pretty similar to that.

The lidar unit is currently planned to be another like that built for the STORRM experiment on STS-134, the one on the ISS RRM, and the one in Raven going up in STP-H5 on the upcoming SpX-10.  Modifications are minor, so yes A_M_Swallow's guess is correct.  This is coming out of NASA GSFC.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Online jacqmans

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Re: NASA Restore-L LEO servicing
« Reply #7 on: 12/06/2016 09:40 AM »
December 05, 2016
CONTRACT RELEASE C16-032

NASA Awards Contract for Refueling Mission Spacecraft

NASA has awarded the Restore-L Spacecraft Bus and Support Services contract to Space Systems/Loral of Palo Alto, California. Restore-L is a robotic spacecraft equipped with the tools, technologies and techniques needed to service satellites currently in orbit.

The contract has a firm-fixed-price and includes a three-year core period and a two-year indefinite-delivery/indefinite-quantity portion. The total maximum value of the contract is $127 million.

Space Systems/Loral will provide spacecraft bus, critical hardware and services for the development, deployment and operations of the Restore-L mission. They also will provide related services to accomplish mission integration, test, launch and operations.

The Restore-L Project is managed within NASA’s Satellite Servicing Projects Division at the agency’s Goddard Space Flight Center in Greenbelt, Maryland, for NASA’s Space Technology Mission Directorate.

The Satellite Servicing Projects Division at Goddard was established in 2009 to continue NASA’s 40-year legacy of satellite servicing and repair. Restore-L is a free-flying mission projected to launch in 2020 to perform in-orbit satellite servicing on an operational government asset in low-Earth orbit.

For information about NASA and agency programs, visit:

http://www.nasa.gov

Offline ZachS09

Re: NASA Restore-L LEO servicing
« Reply #8 on: 12/06/2016 03:09 PM »
Collectspace's similar article says that Landsat 7, which was launched in April 1999 atop a Delta II, will be refueled by Restore-L in 2020.

http://www.collectspace.com/ubb/Forum33/HTML/000661.html
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Offline zubenelgenubi

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Re: NASA Restore-L LEO servicing
« Reply #9 on: 12/08/2016 02:09 AM »
Collectspace's similar article says that Landsat 7, which was launched in April 1999 atop a Delta II, will be refueled by Restore-L in 2020.

http://www.collectspace.com/ubb/Forum33/HTML/000661.html
An interesting, indirect connection, IIRC:
One of the Vandenberg Shuttle flights was to be a refueling of Landsat 4 or 5.  They were constructed with larger than otherwise needed propellant tanks so the satellite would have sufficient propellant to lower its orbit prior to the Shuttle rendezvousing with it.
« Last Edit: 12/08/2016 02:10 AM by zubenelgenubi »
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Offline russianhalo117

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Re: NASA Restore-L LEO servicing
« Reply #10 on: 12/08/2016 02:12 AM »
Collectspace's similar article says that Landsat 7, which was launched in April 1999 atop a Delta II, will be refueled by Restore-L in 2020.

http://www.collectspace.com/ubb/Forum33/HTML/000661.html
Collectspace's similar article says that Landsat 7, which was launched in April 1999 atop a Delta II, will be refueled by Restore-L in 2020.

http://www.collectspace.com/ubb/Forum33/HTML/000661.html
An interesting, indirect connection, IIRC:
One of the Vandenberg Shuttle flights was to be a refueling of Landsat 4 or 5.  They were constructed with larger than otherwise needed propellant tanks so it would have sufficient propellant to lower its orbit prior to the Shuttle rendezvousing with it.
Restore-L's full name is Restore-Landsat Servicing Mission which was recently shortened to just Restore-L.

Offline russianhalo117

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Re: NASA Restore-L LEO servicing
« Reply #11 on: 12/08/2016 04:36 AM »
BUMP:
Manufacturing contract has been awarded: http://forum.nasaspaceflight.com/index.php?topic=41781.0

Offline gosnold

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Re: NASA Restore-L LEO servicing
« Reply #12 on: 01/14/2017 09:19 AM »
FISO presentation on sat servicing, including restore-L:

http://spirit.as.utexas.edu/%7Efiso/telecon/Reed_1-11-17/

Offline Hobbes-22

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Re: NASA Restore-L LEO servicing
« Reply #13 on: 01/14/2017 07:28 PM »
I'm kinda disappointed they didn't go with the name Restore-R  :P

Offline jongoff

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Re: NASA Restore-L LEO servicing
« Reply #14 on: 01/15/2017 03:06 AM »
FISO presentation on sat servicing, including restore-L:

http://spirit.as.utexas.edu/%7Efiso/telecon/Reed_1-11-17/

That was my first FISO telecon I had the chance to listen to live (it's usually a bad time of the week for me). I really liked some of the last slides, where they were talking about "low-hanging fruit" initiatives they were working on for making future spacecraft more readily serviceable. Like adding optical fiducial "stickers" to the back of the spacecraft, or developing a robotic fueling interface that seems to be similar size and weight to existing less-serviceable connections.

Also interesting to hear that in ~14 months they'll be launching RRM-3 to ISS, which will include a cryo methane transfer experiment.

~Jon

Offline jongoff

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Re: NASA Restore-L LEO servicing
« Reply #15 on: 01/15/2017 03:07 AM »
I'm kinda disappointed they didn't go with the name Restore-R  :P

Isn't the L for "LandSat" the satellite they're targeting for servicing?

~Jon

Offline Skyrocket

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Re: NASA Restore-L LEO servicing
« Reply #16 on: 01/15/2017 09:55 AM »
I'm kinda disappointed they didn't go with the name Restore-R  :P

Isn't the L for "LandSat" the satellite they're targeting for servicing?

~Jon

L is for "low earth orbit". There was also a study for RESTORE-G for a "geostationary orbit" mission.

Offline TakeOff

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Re: NASA Restore-L LEO servicing
« Reply #17 on: 01/18/2017 06:54 AM »
Why refuel satellites? Why not let the "Restore-L" instead tug the satellite with its own engine? It should be much easier and safer and one doesn't need to care about what fuel type the satellite originally had.

Offline Jim

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Re: NASA Restore-L LEO servicing
« Reply #18 on: 01/18/2017 12:49 PM »
Why refuel satellites? Why not let the "Restore-L" instead tug the satellite with its own engine? It should be much easier and safer and one doesn't need to care about what fuel type the satellite originally had.

Because a "tug" isn't needed.  No "engine" is need.  The propellant is for attitude control.  Attaching another spacecraft is not that simple.  The mass properties of the stack is different.  The attached spacecraft would interfere with look angles of sensors and instruments.  It would require sending commands to two spacecraft to point and take data.

Online TrevorMonty

Re: NASA Restore-L LEO servicing
« Reply #19 on: 01/18/2017 05:52 PM »
Why refuel satellites? Why not let the "Restore-L" instead tug the satellite with its own engine? It should be much easier and safer and one doesn't need to care about what fuel type the satellite originally had.

Because a "tug" isn't needed.  No "engine" is need.  The propellant is for attitude control.  Attaching another spacecraft is not that simple.  The mass properties of the stack is different.  The attached spacecraft would interfere with look angles of sensors and instruments.  It would require sending commands to two spacecraft to point and take data.
OrbitalATK intend to start with a space tug then evolve it add servicing and refuelling capabilities to it. The space tug will latch onto satellite engine bell and take over all propulsion jobs. Have signed customers for 2019-2020 launch.See OA thread for more info.

What the tugs needs is away to refuel themselves from a upper stage or newly deployed satellite. ACES would be ideal for this as it should have endurance to enable rendezvous with tug after its initial mission. Tug refuels from secondary payload tanks. As extra bonus tug could attach dead satellite to ACES for disposal.

Offline Jim

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Re: NASA Restore-L LEO servicing
« Reply #20 on: 01/18/2017 06:02 PM »

OrbitalATK intend to start with a space tug then evolve it add servicing and refuelling capabilities to it. The space tug will latch onto satellite engine bell and take over all propulsion jobs. Have signed customers for 2019-2020 launch.See OA thread for more info.


That is for GEO comsats, which have different requirements than a LEO spacecraft.  GEO Comsats only point in one direction and have the same basic design.  Also, then again, they don't need a "tug" with an engine.  Just some station keeping thrusters.

Online TrevorMonty

Re: NASA Restore-L LEO servicing
« Reply #21 on: 01/18/2017 07:01 PM »



  Also, then again, they don't need a "tug" with an engine.  Just some station keeping thrusters.

One market OA tug will address is repositioning GEO satellites. Allows satellite to conserve its fuel for station keeping.

The following is my idea may not be practical.
If tug is available to place satellite in grave yard orbit, then satellite can also use fuel reserved for disposal to extend its life.

Offline TakeOff

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Re: NASA Restore-L LEO servicing
« Reply #22 on: 01/19/2017 08:00 PM »
Why refuel satellites? Why not let the "Restore-L" instead tug the satellite with its own engine? It should be much easier and safer and one doesn't need to care about what fuel type the satellite originally had.

Because a "tug" isn't needed.  No "engine" is need.  The propellant is for attitude control.  Attaching another spacecraft is not that simple.  The mass properties of the stack is different.  The attached spacecraft would interfere with look angles of sensors and instruments.  It would require sending commands to two spacecraft to point and take data.
Hubble is pointed with reaction wheels and was boosted to higher altitude by the space shuttle. Wouldn't that be applicable to many satellites in LEO, but with a small tug in place of the shuttle? During satellite operations the tug could be undocked and at standby nearby until next orbital correction is needed, or go off to another servicing mission.

What about designing satellites such that its fuel tank with thrusters is replaceable? When it is getting empty, it is undocked and discarded while a tug brings a new identical fuel tank with thrusters to replace it. No need then to transfer fuel in microgravity.
« Last Edit: 01/19/2017 08:01 PM by TakeOff »

Offline Jim

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Re: NASA Restore-L LEO servicing
« Reply #23 on: 01/20/2017 11:07 AM »

Hubble is pointed with reaction wheels and was boosted to higher altitude by the space shuttle. Wouldn't that be applicable to many satellites in LEO, but with a small tug in place of the shuttle? During satellite operations the tug could be undocked and at standby nearby until next orbital correction is needed, or go off to another servicing mission.


Hubble was an exception.  It was designed for shuttle servicing and hence had to be in a low orbit that would require reboost.   There few to no other like Hubble.  Most spacecraft are placed is orbits driven by science and the requirements and not be low enough for shuttle servicing.  Hubble should have resided at L2 like JWST and SIRTF for scienc[quote



What about designing satellites such that its fuel tank with thrusters is replaceable? When it is getting empty, it is undocked and discarded while a tug brings a new identical fuel tank with thrusters to replace it. No need then to transfer fuel in microgravity.

That doesn't place the thrusters in the locations.  Also, the propellant is not near the CG


Online TrevorMonty

Re: NASA Restore-L LEO servicing
« Reply #24 on: 01/20/2017 02:08 PM »
Talking of JWST, guy from Restore L fiso webcast is trying to convince JWST team to paint a pattern on JWST which makes capturing it easier. JWST is not serviceable but that doesn't stop a tug attaching its self and taking over propulsion. Could even bring it back to cis lunar station for investigation if not repair.

Offline jongoff

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Re: NASA Restore-L LEO servicing
« Reply #25 on: 01/21/2017 01:52 AM »
Talking of JWST, guy from Restore L fiso webcast is trying to convince JWST team to paint a pattern on JWST which makes capturing it easier. JWST is not serviceable but that doesn't stop a tug attaching its self and taking over propulsion. Could even bring it back to cis lunar station for investigation if not repair.

It's called an optical fiducial. Basically it's a very precise shape/pattern that a machine vision system can use to tell what your relative pose (angles) and position to the object are, just by looking at it. Super useful for rendezvous and capture operations, and the stickers to do so weigh only a few grams each if done right.

~Jon

Online Robotbeat

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Re: NASA Restore-L LEO servicing
« Reply #26 on: 01/21/2017 05:28 PM »
It is, however, optional. It just makes machine vision easier. But could be done without it.
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Online TrevorMonty

Re: NASA Restore-L LEO servicing
« Reply #27 on: 01/21/2017 05:46 PM »
Repair of satellites by crews at DSH could be reality. It would require likes of OA tug to haul them from GEO to DSH. Probably not financially viable for comsats but $B government satellite is different story.

Offline Lar

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Re: NASA Restore-L LEO servicing
« Reply #28 on: 01/22/2017 03:38 AM »
It is, however, optional. It just makes machine vision easier. But could be done without it.
Worth a few grams though, I think...?
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Offline Comga

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Re: NASA Restore-L LEO servicing
« Reply #29 on: 01/22/2017 04:01 AM »
(Snip)
Hubble should have resided at L2 like JWST and SIRTF for science
(snip)

SIRTF/Spitzer is not at L2 ;D
And don't "should" all over Hubble. It is what it is for good, and not so good, reasons.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline Targeteer

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Re: NASA Restore-L LEO servicing
« Reply #30 on: 08/08/2017 03:10 PM »
https://sslmda.com/html/pressreleases/pr20170808.php

https://sspd.gsfc.nasa.gov/video/RestoreConOpsTechTakeoverRevA.m4v

SSL AND NASA SUCCESSFULLY COMPLETE PRELIMINARY DESIGN REVIEW FOR TRAILBLAZING RESTORE-L ON-ORBIT ROBOTIC SERVICING SPACECRAFT
Program Will Extend the Life of Space Assets and Benefits Science, Exploration, and National Security Missions

PALO ALTO, Calif. – August 8, 2017 — Space Systems Loral (SSL), a leading provider of innovative satellites and spacecraft systems, today announced that it successfully completed the Preliminary Design Review (PDR) for NASA’s Restore-L mission to provide satellite servicing in Low Earth Orbit (LEO).  With the completion of the PDR, Restore-L is proceeding on schedule to the next phase of development and its launch in 2020.

As announced last year, SSL is working with NASA Goddard Space Flight Center’s Satellite Servicing Projects Division (SSPD), to build a spacecraft that will change the nature of how infrastructure in space is managed by, for the first time in history, refueling a satellite in orbit that was not designed for servicing.  Restore-L will use robotics and an advanced suite of technologies to grasp and refuel an existing U.S. government satellite already in LEO with the goal of extending the operational lifetime of space assets, as well as to demonstrate the tools, technologies, and techniques that will help enable future space exploration missions and a new U.S. satellite servicing industry.

The design review took place over a three-day period at SSL’s facilities and demonstrated that the Restore-L design meets system requirements.  Due to the success of the PDR, Restore-L will now proceed to the detailed design phase.

The SSL-built spacecraft will provide the structural support, propulsion, attitude control, data and communications interface, and power to support the Restore-L robotic payload for the trailblazing on-orbit demonstration.

“Satellite servicing in Low Earth Orbit is of great value for NASA exploration and science architectures as well as national security,” said Richard White, president of SSL Government Systems.  “With the PDR successfully completed, we are on track to developing a capability that helps maintain our country’s international position as a leader in advanced space technology.  In addition to enabling high value assets to continue to be used, Restore-L will test crosscutting technologies that have applications for other important NASA missions.”

NASA is also leveraging SSL’s commercial capabilities and experience to help reduce cost on a variety of next-generation missions that enable groundbreaking robotics and automation technologies.  These include a NASA Discovery Mission to explore the asteroid Psyche, and the Dragonfly program, which will demonstrate robotic  satellite assembly on-orbit.
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Online gongora

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Re: NASA Restore-L LEO servicing
« Reply #31 on: 08/09/2017 03:21 AM »
[SpacePolicyOnline.com] RESTORE-L Passes PDR As Future Remains Cloudy
Quote
NASA’s satellite servicing technology development and demonstration mission, Restore-L, passed a milestone today, successfully clearing Preliminary Design Review (PDR).  The Trump Administration wants to downscale the program significantly however, and while the House and Senate Appropriations Committees have rallied to its defense, only one approved the money needed to keep it on course.
...

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