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Russell Borogove
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Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º28.5º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28.5º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

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Russell Borogove
  • 171.9k
  • 14
  • 606
  • 714

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60  -ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60  ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

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Jens
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sIs there any current launch system that could get a 75,000 kg kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km km x 35786 km km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-  ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m m/s of ∆v. If this is done with hypergolic propellants at ~300 s s specific impulse, the rocket equation tells me it would require about 28 tons tons of propellant, so something like 30 tons tons of useful payload could have been put into GSO by a Saturn V.

s there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60-ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

Is there any current launch system that could get a 75,000 kg object to geostationary orbit?

No. (Starship/Super Heavy can, of course, do anything, but it's not a current launch system.)

If not, am I correct in assuming the Saturn V could have gotten such an object there?

No.

According to the Silverbird calculator, a Saturn V could get about 60 metric tons to a geostationary transfer orbit of 185 km x 35786 km and 28º inclination, that is, an orbit with apogee at geostationary altitude but with a very low perigee.

That 60  ton payload could circularize and plane-change into equatorial GSO, requiring about 1811 m/s of ∆v. If this is done with hypergolic propellants at ~300 s specific impulse, the rocket equation tells me it would require about 28 tons of propellant, so something like 30 tons of useful payload could have been put into GSO by a Saturn V.

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Russell Borogove
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