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
2017-07-12 20:47:11 C 18 07 41.28 +11 25 23.4 q K14
2017-07-12 20:47:52 C 18 07 40.60 +11 25 10.4 q 107
2017-07-12 20:51:52 C 18 07 42.00 +11 24 39.0 q 107
2017-07-12 20:53:56 C 18 07 43.61 +11 24 30.8 q K14
2017-07-12 20:55:53 C 18 07 43.43 +11 24 08.4 q 107
2017-07-12 20:59:54 C 18 07 44.92 +11 23 36.6 q 107
2017-07-12 21:00:18 C 18 07 45.87 +11 23 40.8 q K14
2017-07-12 21:06:50 C 18 07 48.18 +11 22 50.1 q K14
2017-07-12 23:14:52 C 18 08 32.95 +11 06 02.8 q 203
2017-07-12 23:30:29 C 18 08 38.90 +11 03 53.9 q C23
2017-07-12 23:36:30 C 18 08 41.08 +11 03 07.2 q C23
2017-07-12 23:40:58 C 18 08 42.63 +11 02 32.8 q C23
2017-07-13 00:05:27 C 18 08 50.84 +10 59 29.3 q 203
2017-07-13 10:15:37 C 18 12 33.19 +09 42 45.2 L T08
2017-07-13 10:27:41 C 18 12 37.16 +09 41 14.5 L T08
2017-07-13 10:39:44 C 18 12 41.13 +09 39 44.1 L T08
2017-07-13 20:46:53 C 18 16 15.44 +08 24 52.3 q A48
2017-07-13 20:48:49 C 18 16 16.04 +08 24 38.5 q A48
2017-07-13 20:50:10 C 18 16 16.48 +08 24 29.0 q A48
2017-07-13 20:51:55 C 18 16 17.07 +08 24 15.8 q A48
2017-07-14 21:26:23 C 18 24 09.51 +05 35 16.6 q 160
2017-07-14 21:28:28 C 18 24 10.10 +05 35 03.0 q 160
2017-07-14 21:30:33 C 18 24 10.69 +05 34 49.5 q 160
2017-07-14 22:11:15 C 18 24 22.65 +05 30 14.2 q C23
2017-07-14 22:17:03 C 18 24 24.31 +05 29 36.6 q C23
2017-07-14 22:21:40 C 18 24 25.65 +05 29 06.0 q C23
2017-07-15 06:03:04 C 18 26 41.31 +04 39 45.5 U H21
2017-07-15 06:06:34 C 18 26 42.28 +04 39 23.3 U H21
2017-07-15 06:10:03 C 18 26 43.22 +04 39 01.0 U H21
2017-07-15 06:13:32 C 18 26 44.16 +04 38 38.9 U H21
2017-07-15 06:16:52 C 18 26 45.09 +04 38 17.8 U H21
2017-07-15 06:22:06 C 18 26 46.53 +04 37 44.6 U H21
2017-07-15 06:24:43 C 18 26 47.23 +04 37 27.8 U H21
2017-07-15 10:15:54 C 18 27 54.88 +04 13 38.8 L T05
2017-07-15 10:41:56 C 18 28 01.75 +04 10 56.1 L T05
2017-07-15 10:54:57 C 18 28 05.20 +04 09 34.6 L T05
2017-07-15 20:23:28 C 18 30 49.21 +03 11 03.3 q 107
2017-07-15 20:26:31 C 18 30 49.98 +03 10 45.2 q 107
2017-07-15 20:30:02 C 18 30 50.92 +03 10 24.1 q 107
2017-07-16 05:50:41 C 18 33 21.81 +02 15 30.9 U 654
2017-07-16 06:34:04 C 18 33 32.42 +02 11 20.3 U 654
2017-07-16 06:50:17 C 18 33 36.37 +02 09 46.7 U 654
2017-07-16 07:01:34 C 18 33 39.12 +02 08 41.7 U 654
2017-07-16 07:19:49 C 18 33 43.56 +02 06 56.6 U 654
2017-07-16 07:36:34 C 18 33 47.64 +02 05 20.1 U 654
2017-07-16 22:20:28 C 18 37 34.30 +00 42 52.7 q 160
2017-07-16 22:22:33 C 18 37 34.78 +00 42 41.3 q 160
2017-07-16 22:24:38 C 18 37 35.25 +00 42 29.9 q 160
2017-07-17 06:16:56 C 18 39 29.12 +00 00 33.3 U H21
2017-07-17 06:19:18 C 18 39 29.63 +00 00 21.0 U H21
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)