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Questions tagged [payload-deployment]

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1answer
39 views

help understanding this complicated structure that will deploy HySIS

This ISRO page for the HysYS spacecraft says: HysIS, the primary satellite of PSLV-C43 mission, weighing about 380 kg, is an earth observation satellite configured around ISRO’s Mini Satellite-2 (...
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0answers
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What are the things that can be done in future mass-cubesat deploys to make them less irksome to orbital space debris experts?

In the first group of questions below the block quotes, I've illustrated situations where a large number of cubesats are deployed at one launch (56 an 104 satellites) and it seemed to take quite a ...
4
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1answer
163 views

What is this “space ring”? Is it SHERPA or something new, or just “art”?

In the orbitalreflector.com website there is a picture of a ring that looks like it can deploy smallsats as part of a more complex launch. Reverse image search turns up another view, both shown below. ...
1
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1answer
99 views

Are the cubesats deployed from the ISS always directed “nadir and retrograde”?

@Tristan's answer to What are the orbital mechanical consideration behind hand-launched nanosatellites from the ISS? includes: If you launch nadir and retrograde, you will put the object into a ...
4
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1answer
86 views

Typical time for a cubesat to start up after it is deployed

How long do cubesat take to start up completely after they are deployed? I know the cubesat standard requires 30 minutes after initial separation from the launcher to deploy deployables such as ...
17
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2answers
637 views

What was the outcome of the launch of ZUMA by SpaceX, to the best of the public's knowledge?

Now, I realise this question is inherently unanswerable due to the classified nature of the mission, and speculation is also not desirable, but that's okay — because we can at least assemble official ...
1
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1answer
97 views

Have there been individual satellites that have been deployed and recovered more than twice?

Have there been individual satellites that have been deployed into Earth orbit (or beyond) and recovered safely back to Earth's surface more than twice? Deployed means it's not a launch vehicle ...
7
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1answer
431 views

What are the orbital mechanical consideration behind hand-launched nanosatellites from the ISS?

The NASA Spaceflight article Extended Russian EVA complete – conducts satellite deployments says: The first order of the day was for Ryazanskiy to head into the manual deployment of five ...
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0answers
169 views

Why isn't the JWST mirror bigger?

What's behind the choice of not designing the largest possible folding mirror for the James Webb space telescope, since something like a 13m diameter mirror could also fit in Ariane's fairing?
6
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1answer
265 views

ISRO's PSLV-C37 with 104 satellites - after 56 hours only six TLEs, which factor is greatest challenge?

It's been 24 hours 56 hours since ISRO's PSLV-C37 launched from Satish Dhawan Space Centre (SRI) at 09:28 local time (03:58 UTC). I see satcat numbers and object names for 105 total objects; ...
5
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2answers
267 views

Why would the future Nanoracks airlock be built so that it must be removed from the ISS to deploy cubesats?

I am sure there are a number of safety and engineering considerations, as well as future integration and flexibility to consider, but I can't think of any so far. When I think of an airlock, I think ...
5
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2answers
526 views

What is the final conclusion about 'object M'? What happened?

I've looked at Is Iridium launch object M a test satellite? and I don't understand what seems to have happened. The Iridium launch produced 11 orbiting objects when only 10 Iridium satellites were ...
8
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0answers
140 views

What goes into the planning and execution of the deployment of groups of LEO satellites?

I was among many watching SpaceX's exciting OrbComm-2 mission (Falcon-9 Flight 20, 22-Dec-2015), and besides the first successful landing of a 1st stage after an orbital mission, the deployment of the ...
5
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1answer
818 views

How were the 10 Iridium NEXT satellites deployed by SpaceX?

Can someone explain (in general or specific terms) how SpaceX deployed these 10 satellites? I'm trying to imagine the mechanisms and process of launching these objects with the required precision. Is ...
5
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1answer
357 views

What pattern of satellite release will the pentagonal Iridium arrangement use?

The first ten of eleven OrbComm satellites were deployed in opposing pairs at five different times. The 2nd stage performed roll maneuvers to make sure the initial velocity and/or attitude were ...
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4answers
733 views

Can a blimp dead drop on Mars or Earth this way?

I saw a space jump where someone had exceeded the speed of sound before the air slowed him down enough to deploy a parachute, because the air was not dense enough to tear him apart in the upper ...
7
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3answers
867 views

What kinds of things have been tossed out of the ISS?

Cubesats are (ir-)regularly deployed at very low velocity from the ISS, and they don't usually have propulsion. This tells me that the delta-v is enough to guarantee to those in charge that their ...
11
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2answers
2k views

Are cubesats deployed with fully discharged batteries? Even those on Sherpa?

I'm pretty sure that at least some large satellites are deployed with their batteries charged so that they can initialize themselves, get their own attitude and position, and possibly establish some ...
3
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1answer
851 views

How will Sherpa and Formosat-5 be configured as payload and launched?

I was reading the comments in this Reddit and I'm confused. How will Sherpa and Formosat-5 be configured inside the Fairing, and then deployed. One comment seems to suggest that Formosat-5 is one of ...
8
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0answers
315 views

What caused this shadow on Falcon 9 stage 2 w/Jason-3 before circularization burn?

While the image appears bright, the light is just reflected sunlight (from the earth, per the webcast). The circularization burn doesn't start until about T+ 00:55:16 per the SpaceX webcast. But at ...
5
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1answer
181 views

Are these objects other satellites in the SpaceX webcast of Jason-3 deployment?

I realize there is a whole lot of stuff in low earth orbit, but didn't imagine that it would be so visible. Here are the two brighter objects that passed by during the deployment of Jason-3 by SpaceX. ...
2
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1answer
353 views

DId the Falcon 2nd stage turn around [UPDATED] and point “backwards” before the Orbcomm-2 deployement started?

It looks to me like the camera used for the deployment part of the Webcast shown on YouTube is located near the "bottom" of the payload area (closer to the engine & tanks) - in which case, did ...
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2answers
3k views

How did Falcon 9 deploy 11 satellites?

Falcon 9 Flight 20 has successfully deployed 11 ORBCOMM satellites into orbit. I can easily imagine a rocket deploying 1 or 2 satellites. But how did Falcon deploy 11 satellites in a single flight? ...
17
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1answer
1k views

What was the distant bright light in the SpaceX webcast of Orbcomm OG2 deployment?

As I was watching the SpaceX launch today on YouTube, I have noticed a bright distant light as the satellites were being deployed. What was that light? Also, after each deployment there was something ...
6
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1answer
401 views

How do the secondary payload abilities of different launchers compare?

ULA with their Atlas V seems to be the leading launch service provider for secondary payloads. This FISO presentation is convincing anyway. And good for them since miniaturization of satellites ...
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2answers
7k views

How does a single rocket place multiple satellites into orbit?

Nowadays, many rockets transport more than one satellite in orbit. But how does a single rocket place multiple satellites into their orbits? Do all rockets which place multiple satellites into orbit ...