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
2019-01-12 21:37:42 C 06 07 28.76 +32 26 42.7 U 108
2019-01-14 09:35:08 C 06 04 34.32 +33 05 11.5 V T08
2019-01-14 09:48:11 C 06 04 33.25 +33 05 24.7 V T08
2019-01-14 09:50:52 C 06 04 33.03 +33 05 28.0 V T08
2019-01-14 22:43:48 C 06 03 34.27 +33 18 18.2 q 160
2019-01-14 22:47:14 C 06 03 34.02 +33 18 21.2 q 160
2019-01-14 22:50:42 C 06 03 33.84 +33 18 24.5 q 160
2019-01-15 05:44:02 C 06 03 03.39 +33 25 12.3 V G96
2019-01-15 05:51:30 C 06 03 02.82 +33 25 19.6 V G96
2019-01-15 05:58:59 C 06 03 02.24 +33 25 26.7 V G96
2019-01-16 08:52:31 C 06 01 07.75 +33 50 44.8 V T05
2019-01-16 08:55:33 C 06 01 07.55 +33 50 47.4 V T05
2019-01-16 09:05:55 C 06 01 06.73 +33 50 57.1 V T05
2019-01-16 09:07:16 C 06 01 06.72 +33 50 58.0 V T05
2019-01-16 09:07:55 C 06 01 06.64 +33 50 58.7 V T05
2019-01-16 09:09:19 C 06 01 06.52 +33 50 59.9 V T05
2019-01-16 09:09:59 C 06 01 06.49 +33 51 00.5 V T05
2019-01-16 09:35:18 C 06 01 04.65 +33 51 23.3 V T05
2021-03-18 10:57:19 C 16 16 32.38 +19 42 31.9 V G96
2021-03-18 11:04:41 C 16 16 32.47 +19 42 35.6 V G96
2021-03-18 11:12:02 C 16 16 32.61 +19 42 39.6 V G96
2021-03-18 11:19:22 C 16 16 32.64 +19 42 42.7 V G96
2021-05-04 09:00:27 C 15 47 07.48 +30 31 04.9 V G96
2021-05-04 09:07:55 C 15 47 06.94 +30 31 08.3 V G96
2021-05-04 09:18:27 C 15 47 06.17 +30 31 13.0 V G96
2021-05-04 09:29:03 C 15 47 05.40 +30 31 16.9 V G96
2021-05-17 07:46:08 C 15 21 59.54 +31 56 31.5 V G96
2021-05-17 07:53:32 C 15 21 58.85 +31 56 31.6 V G96
2021-05-17 08:00:55 C 15 21 58.18 +31 56 32.9 V G96
2021-05-17 08:08:19 C 15 21 57.51 +31 56 33.6 V G96
2021-05-26 12:29:50 C 15 01 34.668 +31 49 08.29 U F51
2021-05-26 12:45:10 C 15 01 33.229 +31 49 05.39 U F51
2021-05-26 13:00:27 C 15 01 31.779 +31 49 02.44 U F51
2021-05-29 10:43:25 C 14 54 59.579 +31 33 11.71 U F51
2021-05-29 10:54:36 C 14 54 58.497 +31 33 08.42 U F51
2021-05-29 11:05:48 C 14 54 57.424 +31 33 05.19 U F51
2021-05-29 11:16:58 C 14 54 56.368 +31 33 02.01 U F51
2021-05-31 07:58:29 C 14 50 46.60 +31 19 17.4 V G96
2021-05-31 08:05:55 C 14 50 45.91 +31 19 15.1 V G96
2021-05-31 08:13:22 C 14 50 45.19 +31 19 12.4 V G96
2021-05-31 08:20:49 C 14 50 44.50 +31 19 09.8 V G96
2021-06-13 06:25:42 C 14 23 52.58 +28 29 56.8 V 703
2021-06-13 06:33:53 C 14 23 51.83 +28 29 50.8 V 703
2021-06-13 06:42:04 C 14 23 51.27 +28 29 45.5 V 703
2021-06-13 06:50:15 C 14 23 50.61 +28 29 38.6 V 703
2021-06-14 05:47:43 C 14 22 04.26 +28 12 14.5 V G96
2021-06-14 05:55:09 C 14 22 03.69 +28 12 08.6 V G96
2021-06-14 06:02:36 C 14 22 03.08 +28 12 02.7 V G96
2021-06-14 06:10:03 C 14 22 02.50 +28 11 57.1 V G96
2021-06-28 07:30:06 C 14 00 38.59 +22 51 49.8 V T08