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
2004-01-03 02:49:24 C 02 14 19.88 -15 22 22.9 18.4 c 704
2004-01-03 03:07:50 C 02 14 23.88 -15 20 38.8 17.8 c 704
2004-01-05 05:33:44 C 02 24 49.86 -10 46 32.3 c 926
2004-01-05 05:34:41 C 02 24 50.08 -10 46 27.1 c 926
2004-01-05 05:35:38 C 02 24 50.29 -10 46 22.1 c 926
2004-01-10 05:15:43 C 02 46 07.59 -01 20 11.6 o 699
2004-01-10 05:44:22 C 02 46 12.12 -01 18 10.7 o 699
2004-01-10 06:13:07 C 02 46 16.67 -01 16 08.3 o 699
2004-01-10 06:41:52 C 02 46 21.22 -01 14 08.4 o 699
2004-01-11 03:14:11 C 02 49 37.15 +00 10 45.5 c 670
2004-01-11 03:35:09 C 02 49 40.31 +00 12 10.4 c 670
2004-01-13 02:09:46 C 02 56 41.89 +03 12 11.3 17.9 c 644
2004-01-13 02:39:40 C 02 56 46.11 +03 14 01.2 17.7 c 644
2004-01-13 04:12:24 C 02 56 59.23 +03 19 42.3 17.8 c 644
2004-01-17 19:19:56 C 03 12 06.65 +09 24 22.5 r 941
2004-01-17 19:21:13 C 03 12 06.84 +09 24 27.1 r 941
2004-01-17 19:22:29 C 03 12 07.00 +09 24 30.9 r 941
2004-01-17 19:23:07 C 03 12 07.08 +09 24 32.7 r 941
2004-01-17 19:25:40 C 03 12 07.39 +09 24 39.6 r 941
2004-01-23 17:53:39 C 03 29 08.40 +15 25 41.8 c 113
2004-01-23 17:54:59 C 03 29 08.52 +15 25 44.5 c 113
2004-01-23 17:56:19 C 03 29 08.67 +15 25 47.5 c 113
2004-01-24 00:48:44 C 03 29 54.70 +15 40 45.4 c 830
2004-01-24 01:23:40 C 03 29 58.51 +15 42 00.8 c 830
2004-01-24 02:02:02 C 03 30 02.68 +15 43 23.0 c 830
2004-01-25 00:13:14 C 03 32 30.54 +16 30 08.9 c 830
2004-01-25 02:09:48 C 03 32 42.99 +16 34 06.5 c 830
2004-01-25 02:58:10 C 03 32 48.18 +16 35 46.8 c 830
2004-01-26 02:54:55 C 03 35 24.87 +17 23 47.8 o 699
2004-01-26 03:20:07 C 03 35 27.61 +17 24 36.9 o 699
2004-01-26 03:45:23 C 03 35 30.22 +17 25 26.5 o 699
2004-01-26 04:10:36 C 03 35 32.84 +17 26 15.2 o 699
2006-05-21 09:06:09 C 14 32 20.87 +33 21 04.2 d 291
2006-05-21 09:15:17 C 14 32 20.18 +33 21 02.1 d 291
2006-05-21 09:22:41 C 14 32 19.61 +33 21 01.0 d 291
2007-01-02 03:26:08 C 03 09 25.91 -07 18 55.2 o 644
2007-01-02 03:57:00 C 03 09 29.77 -07 16 00.6 o 644
2007-01-02 04:27:52 C 03 09 33.63 -07 13 05.9 o 644
2007-01-08 06:25:51 C 03 26 27.42 +04 26 16.2 r 703
2007-01-08 06:36:48 C 03 26 28.50 +04 26 59.8 r 703
2007-01-08 06:47:46 C 03 26 29.61 +04 27 43.5 r 703
2007-01-08 06:58:45 C 03 26 30.73 +04 28 28.2 r 703
2007-01-13 19:28:08 C 03 39 15.43 +12 01 39.5 18.1 r 130
2007-01-13 19:30:18 C 03 39 15.63 +12 01 45.8 18.0 r 130
2007-01-13 19:33:11 C 03 39 15.86 +12 01 54.2 17.9 r 130
2007-01-13 19:34:38 C 03 39 15.99 +12 01 58.3 18.1 r 130
2007-01-14 03:32:01 C 03 39 58.70 +12 24 56.9 18.2 c 704
2007-01-14 03:51:19 C 03 40 00.32 +12 25 52.4 18.8 c 704
2007-01-14 04:10:27 C 03 40 01.96 +12 26 47.3 18.8 c 704
2007-01-14 04:30:10 C 03 40 03.63 +12 27 42.7 19.0 c 704