jonpsy
/ tof_repeats.py
Created
February 23, 2020 21:21
Highlighting the issue #840 , tof provided by the user ( 2 hr or 7200.0 secs ) exceeds the upper bound tof( 1989.6321243010739 secs ) for the given r0,rf.
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| from poliastro.iod.vallado import lambert as vallado | |
| from astropy import units as u, constants as c | |
| if __name__ == "__main__": | |
| k = (c.GM_earth.to(u.km ** 3/ u.s ** 2)) | |
| r0 = [10000., 0, 0] * u.km | |
| rf = [8000., -5000, 0] * u.km | |
| tof = 2 * u.hour | |
| numiter = 10**3 |
jonpsy
/ izzo_vallado_compare.py
Created
February 23, 2020 21:16
Izzo and Vallado algorithm are used for the Lambert Problem. Both yield different answers
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| from poliastro.iod.vallado import lambert as lambert_v | |
| from poliastro.iod.izzo import lambert as lambert_i | |
| from astropy import units as u, constants as c | |
| if __name__ == "__main__": | |
| k = (c.GM_earth.to(u.km ** 3/ u.s ** 2)) | |
| r0 = ([10000., 0, 0] * u.km) | |
| rf = ([8000., -5000, 0] * u.km) | |
| tof = 2*u.hour |
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