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MoreLater |
Mission To An Asteroid
Asteroids are much more accessable than Mars - as well as better potential resources and more strategically important (Mars won't hit Earth anytime soon).
The NASA JPL Center for Near Earth Object Studies has a Really Cool Accessable Near Earth Asteroid online mission planner.
Here's a mission to 99942 Apophis:
Next Arecibo approach |
2020-10 |
Next Goldstone approach |
2021-03 |
Launch date |
2028-06-01 |
Estimated Diameter |
200-893 m |
Est Hectares |
13 - 251 |
Total mission delta V |
6.92 km/s |
Total mission duration |
322 days |
Outbound flight time |
225 days |
Stay time |
32 days |
Inbound flight time |
65 days |
Earth departure dV |
3.824 km/s |
NEA arrival dV |
2.032 km/s |
NEA departure dV |
0.435 km/s |
Earth return dV |
0.625 km/s |
Entry speed |
12 km/s |
NHATS Trajectory ID |
102090 |
If we miss that opportunity, we can go to 2001 CQ36 in 2031, a 282 day mission.