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
2021-06-28 07:36:11 C 14 00 38.30 +22 51 43.5 V T08
2021-06-28 07:45:31 C 14 00 37.79 +22 51 33.4 V T08
2021-06-28 07:59:38 C 14 00 37.03 +22 51 17.4 V T08
2021-07-06 07:18:46 C 13 52 34.827 +19 05 25.59 U F51
2021-07-06 07:39:02 C 13 52 34.086 +19 05 00.14 U F51
2021-07-06 07:59:14 C 13 52 33.349 +19 04 34.74 U F51
2021-07-06 08:19:30 C 13 52 32.615 +19 04 09.21 U F51
2021-11-19 14:07:23 C 09 35 39.46 -20 09 22.6 V T05
2021-11-19 14:12:03 C 09 35 38.97 -20 09 11.1 V T05
2021-11-19 14:20:01 C 09 35 38.14 -20 08 50.6 V T05
2021-11-19 14:34:32 C 09 35 36.60 -20 08 13.5 V T05
2021-11-20 15:08:25 C 09 33 08.06 -19 04 47.5 V T05
2021-11-20 15:14:26 C 09 33 07.39 -19 04 31.7 V T05
2021-11-20 15:25:41 C 09 33 06.20 -19 04 02.1 V T05
2021-11-20 15:46:22 C 09 33 04.03 -19 03 08.7 V T05
2021-11-21 13:47:48 C 09 30 50.24 -18 05 16.3 V T08
2021-11-21 13:55:46 C 09 30 49.37 -18 04 55.8 V T08
2021-11-21 14:01:05 C 09 30 48.79 -18 04 41.6 V T08
2021-11-21 14:20:50 C 09 30 46.67 -18 03 49.3 V T08
2021-11-22 03:56:34 S 09 29 21.607 -17 27 20.88 L C51
2021-11-22 07:04:42 S 09 29 02.143 -17 18 57.02 L C51
2021-11-22 08:38:46 S 09 28 52.414 -17 14 45.17 L C51
2021-11-22 14:36:55 C 09 28 16.63 -16 59 00.6 V T08
2021-11-22 14:37:35 C 09 28 16.51 -16 58 59.0 V T08
2021-11-22 14:44:58 C 09 28 15.72 -16 58 39.4 V T08
2021-11-22 14:45:38 C 09 28 15.64 -16 58 37.1 V T08
2021-11-22 14:55:13 S 09 28 13.517 -16 57 52.96 L C51
2021-11-22 15:19:06 C 09 28 11.93 -16 57 08.1 V T08
2021-11-24 12:07:31 C 09 23 29.90 -14 54 26.7 V T05
2021-11-24 12:17:40 C 09 23 28.79 -14 53 58.1 V T05
2021-11-24 12:24:59 C 09 23 27.98 -14 53 38.4 V T05
2021-11-24 12:47:18 C 09 23 25.51 -14 52 36.0 V T05
2021-11-26 14:12:07 C 09 18 02.04 -12 32 48.8 V T08
2021-11-26 14:22:45 C 09 18 00.78 -12 32 17.4 V T08
2021-11-26 14:28:03 C 09 18 00.16 -12 32 02.8 V T08
2021-11-26 14:45:07 C 09 17 58.16 -12 31 13.7 V T08
2021-11-28 14:18:16 C 09 12 34.84 -10 12 11.6 V T05
2021-11-28 14:20:54 C 09 12 34.53 -10 12 03.9 V T05
2021-11-28 14:24:52 C 09 12 34.02 -10 11 51.9 V T05
2021-11-28 14:33:26 C 09 12 32.99 -10 11 26.6 V T05
2021-11-29 11:15:47 C 09 10 07.91 -09 09 36.6 V 703
2021-11-29 11:23:20 C 09 10 07.04 -09 09 13.8 V 703
2021-11-29 11:30:54 C 09 10 06.07 -09 08 51.6 V 703
2021-11-29 11:38:28 C 09 10 05.10 -09 08 28.5 V 703
2021-12-02 09:14:58 C 09 01 37.50 -05 34 48.6 V 703
2021-12-02 09:22:30 C 09 01 36.51 -05 34 25.0 V 703
2021-12-02 09:30:02 C 09 01 35.51 -05 34 01.3 V 703
2021-12-02 09:37:34 C 09 01 34.54 -05 33 38.1 V 703
2021-12-03 10:18:42 C 08 58 26.05 -04 15 57.1 V G96
2021-12-03 10:26:10 C 08 58 25.04 -04 15 33.6 V G96