138937 (2001 BK16)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6779799601 ± 2.67e-08
Semi-major axis (a)2.0723812401 AU ± 1.62e-09
Inclination (i)31.81272239° ± 7.68e-06
Long. of Asc. Node (Ω)98.82942656° ± 3.34e-06
Arg. of Perihelion (ω)252.42382053° ± 6.09e-06
Mean Anomaly (M)139.15541447° ± 2.92e-06
Mean Motion (n)0.3303754729°/day ± 3.88e-10
Perihelion dist (q)0.66734829 AU ± 5.54e-08
Aphelion dist (Q)3.47741419 AU ± 5.55e-08
Orbital Period2.98335187 yr ± 3.51e-09
Physical Parameters
H (abs. magnitude)17.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.809″
Uncertainty0
Orbit TypeApollo
MOID0.062171 AU
Observations Used3037
Oppositions18
Arc Total1998-2025
First Observation Used1998-01-27
Last Observation Used2025-02-25
Observations (5212)
Date Type RA Dec Mag Band Observatory
2012-12-31 09:28:22 C 05 05 24.60 +10 51 32.4 q E89
2013-01-04 04:56:54 C 05 00 41.18 +16 06 30.8 u 703
2013-01-04 05:06:42 C 05 00 40.75 +16 07 00.2 u 703
2013-01-04 05:16:28 C 05 00 40.28 +16 07 30.3 u 703
2013-01-04 05:26:15 C 05 00 39.81 +16 08 00.0 u 703
2013-01-05 01:48:14 C 04 59 51.20 +17 07 45.2 17.5 r 726
2013-01-05 01:51:37 C 04 59 51.04 +17 07 54.6 17.1 r 726
2013-01-05 01:55:00 C 04 59 50.89 +17 08 04.4 17.2 r 726
2013-01-05 19:42:48 C 04 59 11.62 +17 57 45.1 w I57
2013-01-05 19:43:54 C 04 59 11.55 +17 57 47.1 w I57
2013-01-05 19:46:09 C 04 59 11.46 +17 57 53.5 w I57
2013-01-07 01:10:41 C 04 58 13.69 +19 14 44.7 17.3 r 726
2013-01-07 01:14:04 C 04 58 13.57 +19 14 53.6 17.2 r 726
2013-01-08 01:54:05 C 04 57 31.49 +20 14 56.1 u H21
2013-01-08 02:01:28 C 04 57 31.26 +20 15 13.5 u H21
2013-01-08 02:08:15 C 04 57 31.05 +20 15 29.7 u H21
2013-01-08 02:15:38 C 04 57 30.81 +20 15 47.2 u H21
2013-01-08 02:21:49 C 04 57 30.63 +20 16 01.7 u H21
2013-01-08 19:00:27 C 04 57 05.83 +20 54 16.6 q A13
2013-01-08 19:32:32 C 04 57 04.96 +20 55 28.5 q A13
2013-01-12 20:39:12 C 04 55 27.27 +24 08 42.8 u C39
2013-01-12 21:13:27 C 04 55 26.83 +24 09 43.4 u C39
2013-01-12 21:37:15 C 04 55 26.48 +24 10 25.8 u C39
2013-01-13 05:11:03 C 04 55 22.15 +24 23 38.6 r G96
2013-01-13 05:18:42 C 04 55 22.04 +24 23 51.7 r G96
2013-01-13 05:26:20 C 04 55 21.93 +24 24 04.8 r G96
2013-01-13 05:33:57 C 04 55 21.82 +24 24 17.9 r G96
2013-01-25 08:05:27 C 04 57 13.525 +30 28 38.06 L F51
2013-01-25 08:23:48 C 04 57 13.813 +30 28 54.52 L F51
2014-03-07 07:29:39 C 12 17 39.92 +42 36 48.7 u H21
2014-03-07 07:59:42 C 12 17 38.31 +42 37 00.5 u H21
2014-03-07 08:30:44 C 12 17 36.78 +42 37 12.5 u H21
2015-04-01 11:22:10 C 16 03 01.30 +24 33 22.0 q G96
2015-04-01 11:28:03 C 16 03 01.26 +24 33 25.4 q G96
2015-04-01 11:33:57 C 16 03 01.09 +24 33 28.8 q G96
2015-04-01 11:39:51 C 16 03 01.01 +24 33 32.9 q G96
2015-05-26 05:32:54 C 14 45 38.70 +32 21 51.4 q 448
2015-05-26 06:29:13 C 14 45 33.87 +32 21 38.9 q 448
2015-05-26 06:47:10 C 14 45 32.669 +32 21 35.99 L F51
2015-05-26 07:05:22 C 14 45 31.103 +32 21 32.02 L F51
2015-05-26 07:15:18 C 14 45 29.80 +32 21 28.0 q 448
2015-05-26 07:23:30 C 14 45 29.524 +32 21 28.23 L F51
2015-06-04 09:15:59 C 14 27 43.775 +31 03 48.34 L F51
2015-06-04 09:21:50 C 14 27 43.326 +31 03 45.71 L F51
2015-06-04 09:34:54 C 14 27 42.282 +31 03 39.18 L F51
2015-06-04 09:40:51 C 14 27 41.816 +31 03 36.17 L F51
2015-06-04 09:59:55 C 14 27 40.290 +31 03 26.96 L F51
2015-06-04 10:13:07 C 14 27 39.253 +31 03 20.66 L F51
2015-06-04 10:19:03 C 14 27 38.805 +31 03 17.60 L F51
2015-07-03 06:50:03 C 13 50 44.528 +21 43 25.80 L F51