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
2021-12-14 21:23:54 S 08 18 35.285 +10 35 58.78 V C57
2021-12-14 21:23:54 s 1 -175663.37 0 +109579.04 7290.0 C57
2021-12-14 21:33:54 S 08 18 33.686 +10 36 30.20 V C57
2021-12-14 21:33:54 s 1 -175571.30 9 +108743.18 530.0 C57
2021-12-14 21:43:54 S 08 18 32.158 +10 37 00.70 V C57
2021-12-14 21:43:54 s 1 -175476.87 6 +107905.85 3560.0 C57
2021-12-14 21:53:54 S 08 18 30.401 +10 37 36.88 V C57
2021-12-14 21:53:54 s 1 -175380.05 7 +107067.05 6330.0 C57
2021-12-14 22:03:54 S 08 18 28.675 +10 38 07.51 V C57
2021-12-14 22:03:54 s 1 -175280.83 6 +106226.78 8780.0 C57
2021-12-14 22:13:54 S 08 18 26.902 +10 38 37.46 V C57
2021-12-14 22:13:54 s 1 -175179.19 8 +105385.05 830.0 C57
2021-12-14 22:23:54 S 08 18 25.306 +10 39 04.79 V C57
2021-12-14 22:23:54 s 1 -175075.12 7 +104541.85 2430.0 C57
2021-12-14 22:33:54 S 08 18 23.726 +10 39 40.00 V C57
2021-12-14 22:33:54 s 1 -174968.60 7 +103697.19 3510.0 C57
2021-12-14 22:43:54 S 08 18 21.970 +10 40 13.15 V C57
2021-12-14 22:43:54 s 1 -174859.62 3 +102851.07 4000.0 C57
2021-12-14 23:33:54 S 08 18 13.975 +10 42 49.57 V C57
2021-12-14 23:33:54 s 1 -174277.15 8 +98598.579 5340.0 C57
2021-12-14 23:43:54 S 08 18 11.938 +10 43 24.53 V C57
2021-12-14 23:43:54 s 1 -174153.04 1 +97743.718 900.0 C57
2021-12-14 23:53:54 S 08 18 10.286 +10 43 57.40 V C57
2021-12-14 23:53:54 s 1 -174026.34 4 +96887.408 5410.0 C57
2021-12-15 00:03:54 S 08 18 08.635 +10 44 24.14 V C57
2021-12-15 00:03:54 s 1 -173897.04 9 +96029.649 8780.0 C57
2021-12-17 09:37:34 C 08 09 22.44 +13 47 25.2 V T08
2021-12-17 09:40:14 C 08 09 22.03 +13 47 33.1 V T08
2021-12-17 09:48:53 C 08 09 20.61 +13 48 00.0 V T08
2021-12-17 09:59:36 C 08 09 18.85 +13 48 32.9 V T08
2021-12-17 16:39:23 C 08 08 14.39 +14 08 58.3 V D29
2021-12-17 16:44:14 C 08 08 13.58 +14 09 13.3 V D29
2021-12-17 16:58:11 C 08 08 11.27 +14 09 56.6 V D29
2021-12-17 16:58:47 C 08 08 11.17 +14 09 58.2 V D29
2021-12-17 17:03:38 C 08 08 10.35 +14 10 13.1 V D29
2021-12-17 17:17:34 C 08 08 08.07 +14 10 55.7 V D29
2021-12-17 17:18:11 C 08 08 07.95 +14 10 57.6 V D29
2021-12-17 17:23:01 C 08 08 07.17 +14 11 12.5 V D29
2021-12-19 10:43:54 S 08 02 24.929 +16 20 50.35 V C57
2021-12-19 10:43:54 s 1 +171316.61 0 +214828.61 2760.0 C57
2021-12-19 10:53:54 S 08 02 23.314 +16 21 23.72 V C57
2021-12-19 10:53:54 s 1 +171182.66 4 +215460.97 5780.0 C57
2021-12-19 11:13:54 S 08 02 20.263 +16 22 21.83 V C57
2021-12-19 11:13:54 s 1 +170911.48 4 +216721.57 9160.0 C57
2021-12-19 11:23:54 S 08 02 18.348 +16 22 54.95 V C57
2021-12-19 11:23:54 s 1 +170774.26 1 +217349.83 9570.0 C57
2021-12-19 11:43:54 S 08 02 15.624 +16 23 53.88 V C57
2021-12-19 11:43:54 s 1 +170496.57 4 +218602.26 7940.0 C57
2021-12-19 11:53:54 S 08 02 13.942 +16 24 20.70 V C57
2021-12-19 11:53:54 s 1 +170356.12 0 +219226.43 5940.0 C57