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
2017-07-25 05:33:21 C 19 12 45.13 -11 49 54.1 U H21
2017-07-25 05:37:40 C 19 12 45.64 -11 50 04.8 U H21
2017-07-25 05:42:00 C 19 12 46.15 -11 50 15.6 U H21
2017-07-25 05:46:20 C 19 12 46.62 -11 50 26.7 U H21
2017-07-25 05:50:39 C 19 12 47.13 -11 50 37.6 U H21
2017-07-25 05:54:59 C 19 12 47.62 -11 50 48.6 U H21
2017-07-25 06:32:57 C 19 12 52.11 -11 52 22.3 q H45
2017-07-25 06:34:10 C 19 12 52.24 -11 52 25.4 q H45
2017-07-25 06:35:37 C 19 12 52.40 -11 52 28.9 q H45
2017-07-25 06:36:54 C 19 12 52.56 -11 52 32.1 q H45
2017-07-25 06:40:05 C 19 12 52.88 -11 52 40.7 q H45
2017-07-25 06:41:37 C 19 12 53.06 -11 52 44.3 q H45
2017-07-25 10:18:36 C 19 13 20.54 -12 01 40.2 L T08
2017-07-25 10:31:22 C 19 13 21.88 -12 02 11.6 L T08
2017-07-25 10:58:06 C 19 13 24.89 -12 03 18.1 L T08
2017-07-27 07:27:54 C 19 18 37.37 -13 46 35.2 q H45
2017-07-27 07:29:22 C 19 18 37.50 -13 46 38.0 q H45
2017-07-27 07:30:31 C 19 18 37.61 -13 46 40.3 q H45
2017-07-27 07:31:48 C 19 18 37.77 -13 46 42.9 q H45
2017-07-27 07:33:47 C 19 18 37.96 -13 46 47.5 q H45
2017-07-28 00:06:04 C 19 20 26.14 -14 21 25.1 q C23
2017-07-28 00:12:18 C 19 20 26.72 -14 21 37.7 q C23
2017-07-28 00:55:31 C 19 20 30.99 -14 23 02.9 q C23
2017-07-29 05:30:30 C 19 23 28.36 -15 18 04.5 U 654
2017-07-29 05:43:26 C 19 23 29.49 -15 18 28.5 U 654
2017-07-29 05:55:43 C 19 23 30.57 -15 18 51.1 U 654
2017-07-29 06:46:05 C 19 23 34.96 -15 20 23.8 U 654
2017-07-30 06:39:39 C 19 25 51.47 -16 02 28.6 q H45
2017-07-30 06:41:16 C 19 25 51.61 -16 02 31.8 q H45
2017-07-30 06:43:52 C 19 25 51.86 -16 02 36.1 q H45
2017-07-30 06:46:12 C 19 25 52.04 -16 02 39.9 q H45
2017-07-30 06:48:13 C 19 25 52.16 -16 02 43.4 q H45
2017-07-30 06:49:48 C 19 25 52.34 -16 02 45.5 q H45
2017-07-31 05:10:33 C 19 27 56.74 -16 39 16.9 U 654
2017-07-31 05:44:38 C 19 27 59.42 -16 40 11.2 U 654
2017-07-31 06:14:40 C 19 28 01.78 -16 40 58.6 U 654
2017-07-31 08:36:10 C 19 28 12.86 -16 44 39.0 U 654
2017-08-01 09:40:45 C 19 30 23.52 -17 22 08.2 L T08
2017-08-01 09:52:43 C 19 30 24.33 -17 22 25.6 L T08
2017-08-01 10:04:35 C 19 30 25.18 -17 22 43.4 L T08
2017-08-01 10:15:04 C 19 30 25.96 -17 22 58.3 L T08
2017-08-24 08:50:35 C 20 03 58.022 -23 47 41.06 L F51
2017-08-24 09:06:41 C 20 03 58.754 -23 47 45.03 L F51
2017-08-24 09:22:48 C 20 03 59.476 -23 47 48.91 L F51
2017-08-24 09:38:56 C 20 04 00.205 -23 47 52.79 L F51
2017-09-12 01:18:37 C 20 27 03.83 -24 25 27.4 u 807
2017-09-12 01:24:57 C 20 27 04.18 -24 25 27.2 u 807
2017-09-12 01:31:06 C 20 27 04.51 -24 25 26.6 u 807
2018-12-07 11:07:33 C 04 27 39.52 +11 59 42.3 W T09
2018-12-07 13:33:11 C 04 27 30.57 +11 59 29.7 W T09
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)