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
2017-06-19 04:45:51 C 10 40 46.75 +51 34 21.0 q I52
2017-06-25 22:01:08 C 12 20 53.90 +55 11 52.4 U 204
2017-06-25 22:15:29 C 12 21 06.29 +55 11 56.4 U 204
2017-06-25 22:41:09 C 12 21 28.54 +55 12 03.2 U 204
2017-06-27 03:02:32 C 12 47 46.67 +55 16 25.8 19.1 U H21
2017-06-27 03:07:36 C 12 47 51.49 +55 16 24.0 19.0 U H21
2017-06-27 03:12:38 C 12 47 56.28 +55 16 21.9 18.8 U H21
2017-06-28 05:11:31 C 13 14 24.50 +54 58 55.3 q G96
2017-06-28 05:18:21 C 13 14 31.51 +54 58 46.1 q G96
2017-06-28 05:24:06 C 13 14 37.45 +54 58 38.3 q G96
2017-06-28 05:29:56 C 13 14 43.48 +54 58 30.3 q G96
2017-06-29 07:12:54 C 13 42 51.96 +54 15 57.2 L T08
2017-06-29 07:32:02 C 13 43 12.68 +54 15 11.4 L T08
2017-06-29 07:47:36 C 13 43 29.42 +54 14 33.9 L T08
2017-06-29 08:01:52 C 13 43 44.92 +54 13 58.5 L T08
2017-06-30 05:31:00 C 14 08 11.66 +53 13 23.4 q 703
2017-06-30 05:38:45 C 14 08 20.27 +53 12 55.9 q 703
2017-06-30 05:46:27 C 14 08 28.89 +53 12 28.9 q 703
2017-06-30 05:54:10 C 14 08 37.51 +53 12 01.0 q 703
2017-07-02 05:15:53 C 15 02 50.16 +49 31 39.0 u H21
2017-07-02 05:17:25 C 15 02 51.84 +49 31 29.5 u H21
2017-07-02 05:19:58 C 15 02 54.63 +49 31 13.7 u H21
2017-07-03 06:48:13 S 15 30 52.52 +46 42 05.0 L C51
2017-07-03 08:22:28 S 15 32 32.13 +46 30 33.5 L C51
2017-07-03 08:43:17 C 15 32 45.60 +46 28 58.2 L T08
2017-07-03 08:59:01 C 15 33 01.44 +46 27 00.3 L T08
2017-07-03 09:13:55 C 15 33 16.51 +46 25 07.6 L T08
2017-07-03 09:26:09 C 15 33 28.88 +46 23 33.8 L T08
2017-07-03 09:56:43 S 15 34 11.20 +46 18 55.2 L C51
2017-07-03 09:56:54 S 15 34 11.41 +46 18 52.4 L C51
2017-07-03 22:11:26 C 15 46 41.80 +44 44 04.0 q Z80
2017-07-03 22:16:46 C 15 46 47.05 +44 43 20.5 q Z80
2017-07-03 22:22:05 C 15 46 52.25 +44 42 37.9 q Z80
2017-07-03 22:27:24 C 15 46 57.50 +44 41 55.2 q Z80
2017-07-03 22:32:43 C 15 47 02.71 +44 41 11.5 q Z80
2017-07-03 22:38:02 C 15 47 07.91 +44 40 28.1 q Z80
2017-07-04 20:04:11 C 16 08 02.63 +41 38 49.4 q 160
2017-07-04 20:05:57 C 16 08 04.23 +41 38 33.7 q 160
2017-07-04 20:07:41 C 16 08 05.77 +41 38 18.0 q 160
2017-07-05 09:33:03 C 16 20 13.55 +39 36 30.7 L T05
2017-07-05 09:46:47 C 16 20 25.23 +39 34 20.2 L T05
2017-07-05 10:03:02 C 16 20 38.97 +39 31 45.9 L T05
2017-07-05 10:11:47 C 16 20 46.34 +39 30 23.3 L T05
2017-07-05 20:34:25 C 16 29 50.42 +37 51 20.8 q 160
2017-07-05 20:36:27 C 16 29 52.07 +37 51 01.5 q 160
2017-07-05 20:38:27 C 16 29 53.71 +37 50 41.7 q 160
2017-07-06 07:43:45 C 16 38 56.98 +36 02 59.2 U 654
2017-07-06 08:10:15 C 16 39 17.51 +35 58 34.4 U 654
2017-07-06 08:38:57 C 16 39 39.77 +35 53 46.8 U 654
2017-07-06 09:03:59 C 16 39 59.19 +35 49 35.5 U 654
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)