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
2018-12-11 01:29:34 C 08 11 04.49 -04 39 27.4 V C95
2018-12-11 01:30:06 C 08 11 04.38 -04 39 24.8 V C95
2018-12-11 01:30:38 C 08 11 04.28 -04 39 22.8 V C95
2018-12-11 01:31:09 C 08 11 04.20 -04 39 20.6 V C95
2018-12-11 01:33:16 C 08 11 03.76 -04 39 11.2 V C95
2018-12-11 01:33:48 C 08 11 03.62 -04 39 08.9 V C95
2018-12-14 07:41:34 C 07 55 22.78 +01 01 00.0 V 703
2018-12-14 07:47:53 C 07 55 21.48 +01 01 26.9 V 703
2018-12-14 07:54:11 C 07 55 20.19 +01 01 54.0 V 703
2018-12-14 08:00:29 C 07 55 18.84 +01 02 21.2 V 703
2018-12-14 09:27:58 C 07 55 00.82 +01 08 36.9 V G96
2018-12-14 09:36:03 C 07 54 59.15 +01 09 11.6 V G96
2018-12-14 09:44:09 C 07 54 57.48 +01 09 46.4 V G96
2018-12-14 09:52:15 C 07 54 55.80 +01 10 21.3 V G96
2018-12-27 01:56:59 C 06 58 11.36 +19 45 33.2 q 160
2018-12-27 02:01:07 C 06 58 10.67 +19 45 44.8 q 160
2018-12-27 02:05:15 C 06 58 09.96 +19 45 56.8 q 160
2018-12-27 10:55:04 C 06 56 43.15 +20 11 10.5 V T05
2018-12-27 11:15:01 C 06 56 39.74 +20 12 06.5 V T05
2018-12-27 11:28:11 C 06 56 37.50 +20 12 43.5 V T05
2018-12-27 11:28:50 C 06 56 37.39 +20 12 45.4 V T05
2018-12-31 06:58:23 C 06 42 23.55 +24 06 45.2 V G96
2018-12-31 07:05:46 C 06 42 22.40 +24 07 02.4 V G96
2018-12-31 07:13:09 C 06 42 21.26 +24 07 19.4 V G96
2018-12-31 07:20:32 C 06 42 20.16 +24 07 36.4 V G96
2018-12-31 10:56:28 C 06 41 48.35 +24 15 57.5 V T05
2018-12-31 11:02:41 C 06 41 46.63 +24 16 04.8 V G96
2018-12-31 11:05:55 C 06 41 46.93 +24 16 18.9 V T05
2018-12-31 11:06:44 C 06 41 46.02 +24 16 14.0 V G96
2018-12-31 11:10:48 C 06 41 45.41 +24 16 23.3 V G96
2018-12-31 11:15:42 C 06 41 45.44 +24 16 41.4 V T05
2018-12-31 11:15:45 C 06 41 44.69 +24 16 34.5 V G96
2018-12-31 11:26:23 C 06 41 43.81 +24 17 05.8 V T05
2019-01-02 23:36:23 C 06 33 19.67 +26 25 43.0 q 160
2019-01-02 23:39:15 C 06 33 19.33 +26 25 48.0 q 160
2019-01-02 23:42:10 C 06 33 18.97 +26 25 55.2 q 160
2019-01-06 22:23:09 C 06 21 37.42 +29 14 53.6 q 160
2019-01-06 22:26:03 C 06 21 37.13 +29 14 58.0 q 160
2019-01-06 22:28:53 C 06 21 36.71 +29 15 02.5 q 160
2019-01-08 10:37:29 C 06 17 38.34 +30 10 06.0 V T05
2019-01-08 10:38:30 C 06 17 38.24 +30 10 07.2 V T05
2019-01-08 10:39:49 C 06 17 38.10 +30 10 09.2 V T05
2019-01-08 11:05:04 C 06 17 35.29 +30 10 45.6 V T05
2019-01-08 11:05:43 C 06 17 35.23 +30 10 46.5 V T05
2019-01-08 11:10:03 C 06 17 34.73 +30 10 52.6 V T05
2019-01-12 10:03:13 C 06 08 27.78 +32 13 41.9 V T05
2019-01-12 10:21:35 C 06 08 26.11 +32 14 02.8 V T05
2019-01-12 10:46:39 C 06 08 23.84 +32 14 31.6 V T05
2019-01-12 21:31:43 C 06 07 29.33 +32 26 35.7 U 108
2019-01-12 21:34:43 C 06 07 29.04 +32 26 39.2 U 108