Author Topic: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)  (Read 75271 times)

Offline Rondaz

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #260 on: 07/05/2022 10:10 pm »
So at this time CAPSTONE isn't talking to the ground, it could be dead, it might be confused, it might wake up any time.
Now I'm wondering whether Photon can enter NRHO and achieve some of the mission goals. It has the propellent, but lacks the avionics needed to talk to  LRO.

https://twitter.com/DJSnM/status/1544370319254700033

Online ccdengr

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #261 on: 07/05/2022 10:17 pm »
NASA interfering with the free market
CAPSTONE was funded through the NASA Small Spacecraft Technology program and a Phase III Small Business Innovation Research (SBIR) contract.  So I'd say NASA is supporting the free market, although as near as I can tell, this wasn't a competed AO.
https://www.nasa.gov/press-release/nasa-funds-cubesat-pathfinder-mission-to-unique-lunar-orbit

But maybe I'm not understanding what "free market" means to you.

Online FutureSpaceTourist

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #262 on: 07/05/2022 11:34 pm »
https://twitter.com/tlpn_official/status/1544462439319629825

Quote
CAPSTONE UPDATE: 2-way comm's with #NASA's #CAPSTONE
restored for a brief moment on DSS 25. 

Signals are now back to outbound only.

Edit to add:

twitter.com/planet4589/status/1544459265657782273

Quote
Am I reading this right? 2-way comm with CAPS(TONE)  on DSS 25  (and nice to see VGR1 talking to Madrid on 63, and our very own Chandra on 56). Good news if so (not sure they distinguish between Photon Lunar and Capstone though)

https://twitter.com/coastal8049/status/1544465590789689344

Quote
Hi Jonathan, Lunar Photon isn't being tracked by DSN.  SSC at the altitude it's at is the service doing their work.    Not sure what that was on DSN NOW.  But no signals seen as I'm also listening in real time now for over the last couple of hours...
« Last Edit: 07/05/2022 11:51 pm by FutureSpaceTourist »

Offline TrevorMonty

Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #263 on: 07/05/2022 11:53 pm »

It would be interesting if Rocket Lab's Photon could somehow help resolve the CAPSTONE issues.

How?  It just an upper stage.

It's an upgraded upper stage that can function on its own like a satellite.

A meaningless point. Even if there were another satellite on the mission, it doesn't mean it would be able to do anything relative to CAPSTONE.
Photon is like the old Agenas: a satellite bus and upper stage in one. Photon would not be able to test CAPS - lacking the radio for that particular function - but it would still be able to enter NRHO and monitor orbit stability (using ground-based positioning). Not a full CAPSTONE replacement, but able to accomplish a portion of the mission.

Whether it can get to NRHO at this point would depend on how soon a decision to do so would need to be made with whatever delta V it has remaining, and how soon a contract could be drafted with Rocket Lab to do so (since they have their own mission they want to accomplish with Photon that they would need to cancel). Getting to NRHO would be a solid 'maybe', but getting a contract ready in time seems unlikely.
If a constraint is added that nothing would happen until efforts to recover CAPSTONE (if indeed there is a problem in the first place, which is not confirmed) had been deemed as failed, then using Photon as a NRHO demonstrator seems even less likely.
Photon should have DV and comms to enter NRHO but designing course correction burns isn't 5 minute job. It was on same trajectory as Capstone but RL may have changed that by now to achieve close flyby of moon for photo shot.

Be surprised if RL, NASA and Capstone team aren't seriously considering this option now.


Somebody on twitter said solar arrays didn't deploy in which case batteries maybe dead by now.

Peter Beck did confirm Photon could enter NRHO but comms to earth would be limited. Could still acheive some of Capstones objectives ie station keeping.  Lot depends on if Photon hasn't alter course for its secondary mission. Not clear if Beck made this statement before or after issues with Capstone spacecraft.
« Last Edit: 07/21/2022 01:35 am by zubenelgenubi »

Offline XRZ.YZ

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #264 on: 07/06/2022 12:22 am »
https://advancedspace.com/capstone-mission-05-july-2022-update/
Quote
During commissioning activities an anomaly was experienced related to the communication subsystem; the operations team is actively working this issue with the Deep Space Network and determining the best next steps.

As a result of this anomaly, the first trajectory correction maneuver – originally scheduled for the morning of July 5th – has been delayed. This maneuver is designed to more accurately target the transfer orbit to the Moon. This maneuver is the first in a series that are designed to make small corrections to increase the accuracy of the transfer orbit to the Moon. The spacecraft remains on the overall intended ballistic lunar transfer (BLT) while this targeting maneuver is delayed.
One of the benefits of the BLT, the designed trajectory, is its robustness to delays such as this.
The mission transfer approach and system margins provide time to resolve and understand this anomaly before proceeding with the first trajectory correction maneuver.
At the time of publication, the CAPSTONE spacecraft is currently approximately 285,000 km from Earth (~8 times GEO) on its planned ballistic transfer orbit to the Moon.
Spacecraft was commissioning nominally for the first 11 hours.

Spacecraft was deployed successfully from the launch vehicle.
Spacecraft successfully deployed solar arrays, achieved three-axis stabilization, and entered a battery charging mode.
Spacecraft successfully executed Earth-pointing mode, communicated with DSN stations in Madrid Spain and the operations team began check-out and commissioning of the spacecraft.
The operations team was able to determine spacecraft state (position and velocity) and design initial trajectory correction maneuver.
Propulsion system was commissioned and prepared for the first trajectory correction maneuver.
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Offline russianhalo117

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #265 on: 07/06/2022 02:05 am »
https://advancedspace.com/capstone-mission-05-july-2022-update/
Quote
During commissioning activities an anomaly was experienced related to the communication subsystem; the operations team is actively working this issue with the Deep Space Network and determining the best next steps.

As a result of this anomaly, the first trajectory correction maneuver – originally scheduled for the morning of July 5th – has been delayed. This maneuver is designed to more accurately target the transfer orbit to the Moon. This maneuver is the first in a series that are designed to make small corrections to increase the accuracy of the transfer orbit to the Moon. The spacecraft remains on the overall intended ballistic lunar transfer (BLT) while this targeting maneuver is delayed.
One of the benefits of the BLT, the designed trajectory, is its robustness to delays such as this.
The mission transfer approach and system margins provide time to resolve and understand this anomaly before proceeding with the first trajectory correction maneuver.
At the time of publication, the CAPSTONE spacecraft is currently approximately 285,000 km from Earth (~8 times GEO) on its planned ballistic transfer orbit to the Moon.
Spacecraft was commissioning nominally for the first 11 hours.

Spacecraft was deployed successfully from the launch vehicle.
Spacecraft successfully deployed solar arrays, achieved three-axis stabilization, and entered a battery charging mode.
Spacecraft successfully executed Earth-pointing mode, communicated with DSN stations in Madrid Spain and the operations team began check-out and commissioning of the spacecraft.
The operations team was able to determine spacecraft state (position and velocity) and design initial trajectory correction maneuver.
Propulsion system was commissioned and prepared for the first trajectory correction maneuver.
Corresponding NASA release:
https://blogs.nasa.gov/artemis/2022/07/05/further-details-on-communications-issues-with-nasas-capstone/

Offline Rondaz

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #266 on: 07/06/2022 02:06 am »
Further Details on Communications Issues with NASA’s CAPSTONE

Sarah Frazier Posted on July 5, 2022 8:00 pm

NASA’s Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE) experienced communications issues following its deployment on July 4. This is an update on the spacecraft health and efforts to regain contact between CAPSTONE and NASA’s Deep Space Network (DSN). 

Following CAPSTONE’s initial deployment on July 4, the spacecraft successfully deployed solar arrays, was stabilized, and began charging its onboard battery. CAPSTONE’s propulsion system was also readied for the spacecraft’s first maneuver.  CAPSTONE made initial contact with the DSN ground station in Madrid, Spain, followed by a partial contact with the Goldstone ground station in California. From these contacts, mission operators have been able to determine CAPSTONE’s approximate position and velocity in space. 

As a result of the communications issues, CAPSTONE’s first trajectory correction maneuver – originally scheduled for the morning of July 5 – has been delayed. This maneuver is the first in a series that are designed to make small corrections to increase the accuracy of the transfer orbit to the Moon, and the spacecraft remains on the overall intended ballistic lunar transfer while awaiting this trajectory correction. 

Teams are working to resolve CAPSTONE’s communications issues. 

https://blogs.nasa.gov/artemis/2022/07/05/further-details-on-communications-issues-with-nasas-capstone/

Online Navier–Stokes

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #267 on: 07/06/2022 02:12 am »
Quote
Beck noted that Lunar Photon could, for example, enter the same halo orbit that CAPSTONE plans to use. “A piece of cake,” he said when asked about that scenario. “We have plenty of propellant for that, so if required, we could do that, no problem.
https://spacenews.com/capstone-suffers-communications-problem/
« Last Edit: 07/06/2022 02:12 am by Navier–Stokes »

Offline seb21051

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #268 on: 07/06/2022 02:36 am »
Quote
Beck noted that Lunar Photon could, for example, enter the same halo orbit that CAPSTONE plans to use. “A piece of cake,” he said when asked about that scenario. “We have plenty of propellant for that, so if required, we could do that, no problem.
https://spacenews.com/capstone-suffers-communications-problem/

Just a pity that they can't go back to CAPSTONE and fix the communications issue, unless a slap on the side of its head would do the trick.

Offline Comga

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #269 on: 07/06/2022 02:52 am »
NASA interfering with the free market
CAPSTONE was funded through the NASA Small Spacecraft Technology program and a Phase III Small Business Innovation Research (SBIR) contract.  So I'd say NASA is supporting the free market, although as near as I can tell, this wasn't a competed AO.
https://www.nasa.gov/press-release/nasa-funds-cubesat-pathfinder-mission-to-unique-lunar-orbit

But maybe I'm not understanding what "free market" means to you.

We are veering off topic, but the MAIN goal of Capstone was to demonstrate the NRHO for Artemis.
NASA’s secondary purpose of the SST SBIR was to stimulate new entrants into the market.
Unless things improve, NASA will have failed at the main goal.
It’s not clear how well they will have done on the secondary goal of fostering a startup if their first spacecraft fails while being front and center for everyone paying attention to Artemis.
This was not a self funded demo like the early launches of Falcon 1 or Electron.
If it’s really important, you should go with the proposal with the highest probability of success, in your best judgment.


In hindsight, a backup deep space interconnect on Photon could have been cheap insurance.
« Last Edit: 07/06/2022 02:54 am by Comga »
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline nzguy

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #270 on: 07/06/2022 03:33 am »
Is the radio on Photon not compatible with DSN? I was wondering about Peter Beck's comment that comms is going to be the hardest thing for Photon.

Offline XRZ.YZ

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #271 on: 07/06/2022 03:42 am »
NASA interfering with the free market
CAPSTONE was funded through the NASA Small Spacecraft Technology program and a Phase III Small Business Innovation Research (SBIR) contract.  So I'd say NASA is supporting the free market, although as near as I can tell, this wasn't a competed AO.
https://www.nasa.gov/press-release/nasa-funds-cubesat-pathfinder-mission-to-unique-lunar-orbit

But maybe I'm not understanding what "free market" means to you.

We are veering off topic, but the MAIN goal of Capstone was to demonstrate the NRHO for Artemis.
NASA’s secondary purpose of the SST SBIR was to stimulate new entrants into the market.
Unless things improve, NASA will have failed at the main goal.
It’s not clear how well they will have done on the secondary goal of fostering a startup if their first spacecraft fails while being front and center for everyone paying attention to Artemis.
This was not a self funded demo like the early launches of Falcon 1 or Electron.
If it’s really important, you should go with the proposal with the highest probability of success, in your best judgment.


In hindsight, a backup deep space interconnect on Photon could have been cheap insurance.
Launch contract is separate from satellite manufacturing contract.
So you can not design your spacecraft depends on special features of a particular launch vehicle.

Most upper stage won't be alive for long after payload separation.
« Last Edit: 07/21/2022 01:40 am by zubenelgenubi »
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Online trimeta

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #272 on: 07/06/2022 04:19 am »
Launch contract is separate from satellite manufacturing contract.
So you can not design your spacecraft depends on special features of a particular launch vehicle.

Most upper stage won't be alive for long after payload separation.

I think the suggestion is that separate from the contract to Advanced Space to build CAPSTONE, NASA's contract with Rocket Lab could have included a few upgrades to Photon to make it more serviceable as a secondary backup payload should CAPSTONE fail. Of course, "include a whole dissimilarly-redundant second spacecraft to cover the primary mission" isn't exactly Standard Operating Procedure in space missions, so I can see why NASA wouldn't have thought of it. Plus the full range of Photon's capabilities (and how close it was to already being that second spacecraft) may not have been known far enough in advance for such a contract modification anyway.

Offline TrevorMonty

Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #273 on: 07/06/2022 08:18 am »

NASA interfering with the free market
CAPSTONE was funded through the NASA Small Spacecraft Technology program and a Phase III Small Business Innovation Research (SBIR) contract.  So I'd say NASA is supporting the free market, although as near as I can tell, this wasn't a competed AO.
https://www.nasa.gov/press-release/nasa-funds-cubesat-pathfinder-mission-to-unique-lunar-orbit

But maybe I'm not understanding what "free market" means to you.

We are veering off topic, but the MAIN goal of Capstone was to demonstrate the NRHO for Artemis.
NASA’s secondary purpose of the SST SBIR was to stimulate new entrants into the market.
Unless things improve, NASA will have failed at the main goal.


Failure of Capstone satellite is far from total mission failure.
This Photon bus is basis of ESCAPADE mission to Mars. So far this side of the tech demo is working as planned, still few months to go before they can say its a success.

RL privately funded Venus mission next year will provide one more test of Photon which will be closer to Mars in distance and endurance.
« Last Edit: 07/21/2022 01:41 am by zubenelgenubi »

Offline Zed_Noir

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #274 on: 07/06/2022 09:43 am »
Is the radio on Photon not compatible with DSN? I was wondering about Peter Beck's comment that comms is going to be the hardest thing for Photon.
Guessing the radio on the Photon don't have a high data rate.

Offline edzieba

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #275 on: 07/06/2022 11:08 am »
Launch contract is separate from satellite manufacturing contract.
So you can not design your spacecraft depends on special features of a particular launch vehicle.

Most upper stage won't be alive for long after payload separation.

I think the suggestion is that separate from the contract to Advanced Space to build CAPSTONE, NASA's contract with Rocket Lab could have included a few upgrades to Photon to make it more serviceable as a secondary backup payload should CAPSTONE fail. Of course, "include a whole dissimilarly-redundant second spacecraft to cover the primary mission" isn't exactly Standard Operating Procedure in space missions, so I can see why NASA wouldn't have thought of it. Plus the full range of Photon's capabilities (and how close it was to already being that second spacecraft) may not have been known far enough in advance for such a contract modification anyway.
The Photon/Electron stack was operation right on the edge of performance to fly this mission (e.g. stripping off extra mass like on-board cameras to gain margin). Putting extra equipment onto Photon would have meant removing that equipment from CAPSTONE to make up the mass budget. That would then be an entirely new mission (hosted payload on Photon rather than independent cubesat).

Offline Rondaz

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #276 on: 07/06/2022 11:38 am »
CAPSTONE Mission: 05 July 2022 Update

Jul 5, 2022

On July 4, 2022, CAPSTONE (Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment) separated successfully from the launch vehicle and is heading to the Moon on behalf on NASA. The Advanced Space Operations Center and the Mission Operations Center at Terran Orbital are in full swing beginning mission operations, the DSN, and mission partners. We are proud of the hard work the operations team has been doing.

During commissioning activities an anomaly was experienced related to the communication subsystem; the operations team is actively working this issue with the Deep Space Network and determining the best next steps.

As a result of this anomaly, the first trajectory correction maneuver – originally scheduled for the morning of July 5th – has been delayed. This maneuver is designed to more accurately target the transfer orbit to the Moon. This maneuver is the first in a series that are designed to make small corrections to increase the accuracy of the transfer orbit to the Moon. The spacecraft remains on the overall intended ballistic lunar transfer (BLT) while this targeting maneuver is delayed.
One of the benefits of the BLT, the designed trajectory, is its robustness to delays such as this.
The mission transfer approach and system margins provide time to resolve and understand this anomaly before proceeding with the first trajectory correction maneuver.
At the time of publication, the CAPSTONE spacecraft is currently approximately 285,000 km from Earth (~8 times GEO) on its planned ballistic transfer orbit to the Moon.

Spacecraft was commissioning nominally for the first 11 hours.
Spacecraft was deployed successfully from the launch vehicle.
Spacecraft successfully deployed solar arrays, achieved three-axis stabilization, and entered a battery charging mode.
Spacecraft successfully executed Earth-pointing mode, communicated with DSN stations in Madrid Spain and the operations team began check-out and commissioning of the spacecraft.

The operations team was able to determine spacecraft state (position and velocity) and design initial trajectory correction maneuver.

Propulsion system was commissioned and prepared for the first trajectory correction maneuver.

The CAPSTONE mission team has been working around the clock and through the holiday weekend to support this important mission. With CAPSTONE utilizing the BLT, it will take four months to reach the planned Near Rectilinear Halo Orbit (NRHO) around the Moon. As further details emerge, we will make them available.

https://advancedspace.com/capstone-mission-05-july-2022-update/

Offline jimvela

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #277 on: 07/06/2022 01:38 pm »
Is the radio on Photon not compatible with DSN? I was wondering about Peter Beck's comment that comms is going to be the hardest thing for Photon.

The radio being compatible with DSN is different than the mission being DSN-capable. 

The spacecraft would have needed compatibility testing with DSN pre-launch, which would not have been done for a mission not planning to use DSN.

Further, the ground segment (mission operations center) would also need to have been prepared to make use of the DSN.  That involves setting up the required network (data and voice) connectivity to DSN, and again preparing for and demonstrating compatibility pre-launch. 

When performing passes with DSN, there is coordination required as each station on each pass will need to follow a briefing and prepare the station equipment for the upcoming contact. 

With none of that completed, it would be extremely difficult (and not quickly possible) to use DSN for mission communications.

Not impossible, but almost certainly not going to happen in time for any near-term mission communications.
« Last Edit: 07/06/2022 02:39 pm by jimvela »

Online FutureSpaceTourist

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #278 on: 07/06/2022 03:30 pm »
https://twitter.com/advancedspace/status/1544704660191465473

Quote
We have re-established communications with CAPSTONE.
The spacecraft is looking happy and healthy.

 More details to come.
« Last Edit: 07/06/2022 03:31 pm by FutureSpaceTourist »

Offline nzguy

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Re: Electron : CAPSTONE : LC-1 : 28 June 2022 (09:55 UTC)
« Reply #279 on: 07/06/2022 04:15 pm »
Confirmed by NASA:

https://twitter.com/NASAAmes/status/1544706636882796545

Quote
MISSION UPDATE: Communications are back!

Operators have successfully re-established contact with our #CAPSTONE spacecraft. Additional updates to come on the #Artemis blog: https://go.nasa.gov/3P0wLu4

Quote
CAPSTONE Update: Communications Re-Established
Mission operators have re-established contact with NASA’s  Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE) spacecraft. Additional updates will be provided.

Hooray!!! Well done to the hard working people who managed to recover the sat.

DSN Now still seems to be having maintenance so it is not possible to confirm which tracking station made the contact.

It will be interesting to find out what the cause and fix was.

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