2017 BM31

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4933082146 ± 1.55e-08
Semi-major axis (a)1.7826693545 AU ± 4.50e-08
Inclination (i)6.61019468° ± 2.72e-06
Long. of Asc. Node (Ω)132.60606018° ± 1.18e-05
Arg. of Perihelion (ω)96.12247670° ± 1.26e-05
Mean Anomaly (M)204.16251545° ± 4.24e-05
Mean Motion (n)0.4141008082°/day ± 1.57e-08
Perihelion dist (q)0.90326392 AU ± 3.58e-08
Aphelion dist (Q)2.66207479 AU ± 7.26e-08
Orbital Period2.38016025 yr ± 9.01e-08
Physical Parameters
H (abs. magnitude)20.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.240″
Uncertainty0
Orbit TypeApollo
MOID0.064524 AU
Observations Used346
Radar Obs Used3
Oppositions1
Arc Total2015-2022
First Observation Used2015-10-08
Last Observation Used2022-09-27
Observations (360)
Date Type RA Dec Mag Band Observatory
2018-12-08 10:45:14 C 04 26 14.17 +11 57 45.3 W T09
2018-12-08 12:40:40 C 04 26 07.10 +11 57 35.6 W T09
2022-09-23 09:57:29 C 00 55 49.960 -04 49 01.86 V F52
2022-09-23 10:29:06 C 00 55 48.015 -04 49 16.88 V F52
2022-09-23 12:09:13 C 00 55 41.792 -04 50 03.46 V F52
2022-09-23 12:10:22 C 00 55 41.727 -04 50 03.95 V F52
2022-09-27 09:49:06 C 00 50 03.694 -05 32 32.99 V F51
2022-09-27 10:04:36 C 00 50 02.736 -05 32 39.94 V F51
2022-09-27 10:20:21 C 00 50 01.796 -05 32 46.92 V F51
2022-09-27 10:35:47 C 00 50 00.811 -05 32 53.62 V F51
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-07-07 02:12:00 -24997.6971 0.1 Hz 2380 -1 -1
2017-07-07 02:45:00 72266210.5 4 us 2380 -1 -1
2017-07-08 02:30:00 73502265.06 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)