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Questions tagged [payload]

Questions regarding equipment or other material to be transported during space exploration.

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Did the ISS CREAM experiment actually get relocated?

A recent update (May 22) to the database for the NASA visualization tool DOUG shows that the CREAM payload has been relocated to the top of the Japanese Experiment Logistics Module - Pressurized ...
Organic Marble's user avatar
4 votes
1 answer
287 views

What is the significance of a heat flux value of 1135 W/m^2 when jettisoning the payload fairing? [duplicate]

I have seen that many rockets jettison their payload fairing at an altitude where the aerothermal heatflux is leass than or equal to 1135 W/m^2. What is the reason behind considering this particular ...
Tejaswi's user avatar
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4 votes
1 answer
140 views

What are the safe structural elements of spacecraft that could be used for on-orbit capture?

I know this depends on the general configuration of a spacecraft, but I am hoping to gain some insights. Assuming you have a servicer spacecraft with an abstracted capture mechanism (i.e., end ...
Ibrahima's user avatar
4 votes
1 answer
197 views

Has Spacex released any reports describing how they are going to secure the payload on Starship?

SpaceX has announced that Starship will be able to lift around 100 to 150 tons of cargo into Leo. When the spacecraft is landing or taking off you don’t want the payload just floating insecurely in a ...
The Rocket fan's user avatar
0 votes
1 answer
67 views

Does the payload capacity of an interplanetary launch rocket increase with decreasing fuel mass or with increasing escape velocity?

Does the payload capacity of an interplanetary launch rocket increase with decreasing fuel mass or with increasing escape velocity? I was thinking that the escape velocity has nothing to do with it ...
FalconHeavy321's user avatar
1 vote
1 answer
86 views

Dosimeter in a CubeSat

I heard that a dosimeter could be used to detect cosmic ray particles and estimate the radiation dose received by the devices onboard. In this way, one can determine the average amount of ionising ...
Golden_Hawk's user avatar
2 votes
1 answer
107 views

Radio Pollution Payload for CubeSat

I was thinking of a spectrum analyzer as a radio pollution monitoring payload (for a CubeSat) that aims at making a global map of spectrum usage. My question is: Of which spectrum range can a CubeSat ...
Golden_Hawk's user avatar
4 votes
1 answer
546 views

Inclination vs payload capacity of a rocket

I am learning about Space exploration and I have the following question: When you are launching a rocket into space with maximal inclination, is the payload capacity then the highest? Thanks!
FalconHeavy321's user avatar
1 vote
1 answer
150 views

Is the critical inclination the same on every planet in the solar system?

I am learning about Space exploration. Is the critical inclination the same on every planet (in the solar system) or does it depend on the planet?
FalconHeavy321's user avatar
2 votes
1 answer
150 views

How much mass will Artemis landers deliver to the moon?

Is there an estimate of the mass Artemis Landers must be able to deliver to the Lunar surface? I am interested in the total mass - vehicle and payload on arrival - as well as a breakdown of how much ...
Ken Fabian's user avatar
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1 vote
3 answers
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Why weren't super heavy lift launch vehicles used for deep space missions?

According to this PDF Cassini-HuygensPDF, we would need to launch 70 tons if we wanted to do a Saturn transfer orbit from a low earth orbit. It says that there are no vehicles in NASA’s stable even ...
A. N Asker's user avatar
-4 votes
2 answers
176 views

Why do we launch similar payloads on different models of rocket?

Why don’t we just use one launch vehicle to carry different payloads? For example, to launch payloads in the size range of supplies for a Martian base or something made to destroy a Dimorphos size ...
A. N Asker's user avatar
1 vote
1 answer
537 views

Why hasn’t SpaceX sent anything to Mars yet?

SpaceX has the rockets to send some payload to Mars. The Falcon heavy can carry up to 16.8 tons to Mars according to this answer: Why can Falcon Heavy bring 4.2 times as much mass to Mars than F9, but ...
The Rocket fan's user avatar
8 votes
1 answer
290 views

Have there been any rockets whose payload fairings consisted of more than two parts?

Most cargo rockets, such as Falcon 9, Delta IV, and many others, incorporate payload fairings to protect payloads from aero forces and heating during ascent. All of these rockets' fairings split in ...
WarpPrime's user avatar
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4 votes
4 answers
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Could a third stage be added to Starship?

SpaceX has predicted that Starship will be able to lift up to 150 tons to LEO. Could some of the payload that it will carry have a third stage? If so could that save another flight of Starship since ...
The Rocket fan's user avatar
0 votes
1 answer
123 views

Are there payloads that went to orbit without a protective fairing?

Reading about the Ultralight Starshade Structural Design, It seems some solution among others could be an umbrella based concept Since the starshade has to be roughly 100m in diameter, one could ...
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3 votes
1 answer
182 views

3U CubeSat components

as a project for school, we are designing a preliminary conceptual 3U CubeSat design. The mission is to launch in orbit at 1,000 km and Maintain orbit for 1 month. After orbit is maintained for 1 ...
GEAUXTIGHAS's user avatar
3 votes
0 answers
81 views

Info needed on PSLV launch adaptors and configurations

I want to understand how satellites are accommodated in PSLV. I know about few configurations and adaptors that've been used in the past. Is there any document which gives detailed info on Multiple ...
Suyash's user avatar
  • 31
1 vote
1 answer
284 views

How would an SSTO adapt to various payloads?

Yet another kerbal question here. Background: I've built many SSTOs before, mainly small, light-payload or crew delivery ones (either boosted by a rocket or by itself). The reason why I've been shying ...
WarpPrime's user avatar
  • 3,125
4 votes
0 answers
91 views

What was South Korea's Nuri's dummy payload and where did it end up?

Wikipedia's Nuri (rocket) explains that it is a South Korean, three-stage all indigenously developed launch vehicle, and says: On 21 October 2021, it had its first flight at 08:00 UTC and it launched ...
uhoh's user avatar
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what is revisit rate

I want to understand what the revisit rate is. If the payload is required to make the revisit rate of 5 hours. The orbit is LEO (altitude less than 2000 kms). What does this mean? Revisit time - the ...
geetha's user avatar
  • 251
4 votes
1 answer
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what kind of valves are used in payload fairing for venting?

I wanted to know that there have been a handful of literature that mentions vent openings in the rocket payload fairings. However, none specify the kind of valves used in those fairings? does anyone ...
Shamoon's user avatar
  • 41
3 votes
0 answers
80 views

What was the STS mid-deck cargo capacity?

What was the normal cargo capacity of the Shuttle mid-deck, in terms of mass and volume? STS-135 apparently carried more than usual in the mid-deck, how much and how?
user40799's user avatar
  • 108
5 votes
1 answer
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What are the longest current rocket payload fairings, capable of carrying long space station sections?

Space News' China launches Tianhe space station core module into orbit China successfully launched a 22-metric-ton module April 28, beginning an intense period of missions for constructing the nation’...
uhoh's user avatar
  • 148k
4 votes
2 answers
516 views

Crew Dragon: Could launch escape thrust determine payload capacity?

The superdracos in Dragon's launch escape system each produce $\color{black}{\texttt{71.2 kN}}$ (16,000 lbf) of thrust. There are eight superdracos, giving a combined thrust of $\color{black}{\texttt{...
user avatar
5 votes
1 answer
280 views

Interplanetary secondary payload

Have there been any interplanetary secondary payloads? If there were none, are any such payloads planned? I consider two options: launcher rocket's destination is Earth's orbit (LEO etc.), then ...
Kozuch's user avatar
  • 1,493
2 votes
1 answer
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Why wasn't there a 2nd attempt for the Viking-DS (VDS) test payload before the real Viking 1 and 2 were launched?

Per Gunter's Space Page for Viking-DS (VDS): Viking-DS or VDS (Viking Dynamic Simulator) was a vehicle evaluation payload, which was to represent the dynamic properties of the Viking spacecraft. It ...
uhoh's user avatar
  • 148k
1 vote
1 answer
145 views

Payload capacity of Electron rocket?

I can only find the Electron capacity for LEO and SSO: 300 and 200 kg And for Venus: 15 kg (which links to here) But what is the capacity for GTO, Moon and Mars? LEO = Low Earht Orbit SSO = Sun-...
Joe Jobs's user avatar
  • 2,650
1 vote
1 answer
88 views

Payload Capacity definition

Does the payload capacity of a rocket include the satellite and the adaptator or is it just the satellite ?
RockyFxs's user avatar
4 votes
4 answers
2k views

Payload capacity of a rocket

Why does a rocket have far more payload capacity when placing an object in LEO compared to when it's placing the object in farther orbits, like on the Moon? If a rocket has sufficient thrust to take ...
Niranjan's user avatar
  • 3,796
4 votes
2 answers
158 views

Let's say I build an orbit-capable launch vehicle, what tests/certifications would the LV have to acquire to be allowed to launch payloads into orbit?

For the purpose of the question, let's assume said launch vehicle is 100% identical to Electron. What sort of tests/certifications would I have to send the rocket through in order to make it legal to ...
jfield0815's user avatar
3 votes
1 answer
382 views

What is the correct rough estimation for the payload to kick-off a sustainable Mars colony?

In this talk, Elon Musk explains our current global capacity required to kick-off a sustainable Mars colony, should be about 1 000 000 tons (including humans). While this is for sure just some rough ...
J. Doe's user avatar
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3 votes
1 answer
167 views

How much payload capacity is available for a Rocketlab Photon interplanetary mission to Venus?

I've been quite interested in Rocketlab's Photon satellite bus, which they claim to be able to send to Venus. I'm trying to get some kind of an idea of what kind of payload might possible be able to ...
PearsonArtPhoto's user avatar
  • 121k
3 votes
1 answer
261 views

What does the connector supports on the payload adapter do?

Good day, I am currently doing a project for university in which I have to redesign the connector support for the Payload Adapter (PLA 1194 VG) for the Vega(picture shown). I would like some ...
Kaif's user avatar
  • 31
2 votes
1 answer
221 views

Space Shuttle missions for satellite deployment?

Was there any Space Shuttle mission whose primary target were e deploying satellites (space stations do not count).
Joe Jobs's user avatar
  • 2,650
3 votes
1 answer
118 views

Are there any images of SOOS?

SOOS--Stacked Oscar On Scout--was what it was called when the 1985 decision was made to replenish the Operational (Oscar) Transit constellation with unflown first-production models. Early Oscars were ...
Anton Hengst's user avatar
  • 10.9k
6 votes
1 answer
144 views

Who started conducting multiple-payload launches routinely, and on which vechicle?

I know multiple-payload launches are routine these days, and everyone seems to have their own reignitable kick-stage. But who were the first to start doing that? This is similar to this question, but ...
Greg's user avatar
  • 4,287
3 votes
1 answer
172 views

Determine envelopes for the payloads?

I am a mechanical engineer who is trying to expand my domain knowledge in aerospace and am currently reading a book to increase my understanding of it. I am mostly interested in studying the design of ...
D R's user avatar
  • 33
2 votes
0 answers
81 views

Would the 6.5 ton capable Blue Moon lander fit in New Glenn?

As the 2 massive projects of the same company, are they designed to be compatible for NASA's CLPS program ? New Glenn's said to have a 7 m payload fairing diameter but as far as I know, Blue Moon's ...
Atakan Okan's user avatar
5 votes
1 answer
528 views

Was the Space Shuttle balanced experimentally before flight?

Even spacecraft that are designed and optimized for a single mission need to be carefully balanced experimentally, and have ballast added before flight. Why did New Horizons have to be spin-balanced ...
uhoh's user avatar
  • 148k
5 votes
1 answer
704 views

Which kind of launch vehicle has put the most total payload mass in space?

Examples of "kinds of launch vehicles" include Ariane 5, Electron, Pegasus, Falcon 9, Space Shuttle, Saturn V, etc.; small variations shouldn't be counted as separate. Question: Which kind of launch ...
uhoh's user avatar
  • 148k
2 votes
2 answers
153 views

Can communication satellite carry payload other than it's own boards?

Can we attach payload to communication satellite and detach it in space after having gained a specific altitude? What is probability that it will fail?
Sahil Chaudhari's user avatar
4 votes
1 answer
341 views

What's the largest rocket that was carried to space inside a Space Shuttle?

Why did the Ulysses probe reach Jupiter much faster than Galileo? got me wondering about the largest rocket that was carried to space inside a Space Shuttle. Largest in terms of some performance ...
uhoh's user avatar
  • 148k
9 votes
1 answer
2k views

Is it possible to build a rocket with 2kg payload? [duplicate]

Is it possible to build a small rocket that carries 1 cubesat into orbit? And how small the rocket would be, if it is possible?
Olpas's user avatar
  • 149
2 votes
1 answer
245 views

Can a lighter rocket lift more than a heavier rocket?

Let us consider two launch vehicles - "A" and "B". If "A" has a larger wet mass than "B", does this imply "A" has a higher payload capacity to a particular orbit, from a particular launch site than "B"...
Vishnu's user avatar
  • 3,296
2 votes
1 answer
214 views

Why use an air conditioning blanket instead of supplying air into the fairing?

This answer explains that some Atlas payloads were covered in an air coditioning blanket before launch. I can imagine that the payload has some thermal requirements, but a blanket looks lust plain ...
filo's user avatar
  • 1,442
7 votes
1 answer
1k views

Orbital insertion accuracy for SpaceX payloads

What is the orbital insertion accuracy of SpaceX for positioning its payload (for example satellites)? How close do they get to the requested or target orbital parameters? I tried to research this on ...
Åke's user avatar
  • 71
3 votes
0 answers
105 views

Are there examples of cargo being damaged during re-entry?

Are there examples of items being brought to or returned to Earth that were damaged in the re-entry process? For example, lunar samples during Apollo, or something being returned in the Shuttle ...
DrSheldon's user avatar
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4 votes
2 answers
2k views

Why was the Energia’s payload capacity to lunar orbit greater than its payload capacity to geosynchronous orbit?

The Energia rocket, developed in the 1970s and 1980s to launch the Soviet Buran space shuttle, had the second-highest payload capacity (100 tonnes to LEO) of any rocket ever flown (and the highest-...
Vikki's user avatar
  • 4,157
17 votes
2 answers
2k views

What is the largest number of identical satellites launched together?

What is the largest number of (essentially) identical satellites launched together? Form factor alone (e.g. 1U, 3U cubesat) is not enough to make satellites identical, they need to be the same design,...
uhoh's user avatar
  • 148k