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
2021-12-27 08:03:53 S 07 30 39.754 +24 40 24.67 V C57
2021-12-27 08:03:53 s 1 -167565.17 6 +235712.99 2620.0 C57
2021-12-27 08:13:53 S 07 30 38.460 +24 40 48.18 V C57
2021-12-27 08:13:53 s 1 -167740.30 3 +235133.90 3820.0 C57
2021-12-27 08:33:53 S 07 30 34.913 +24 41 33.29 V C57
2021-12-27 08:33:53 s 1 -168087.84 9 +233971.96 3530.0 C57
2021-12-27 08:43:53 S 07 30 33.259 +24 41 53.81 V C57
2021-12-27 08:43:53 s 1 -168260.25 8 +233389.10 2000.0 C57
2021-12-27 08:53:53 S 07 30 31.603 +24 42 16.13 V C57
2021-12-27 08:53:53 s 1 -168431.75 3 +232804.98 6190.0 C57
2021-12-27 09:03:53 S 07 30 29.856 +24 42 41.08 V C57
2021-12-27 09:03:53 s 1 -168602.33 0 +232219.60 6090.0 C57
2021-12-27 09:13:53 S 07 30 28.409 +24 43 03.00 V C57
2021-12-27 09:13:53 s 1 -168771.98 5 +231632.96 1660.0 C57
2021-12-27 09:23:53 S 07 30 26.650 +24 43 23.99 V C57
2021-12-27 09:23:53 s 1 -168940.71 3 +231045.05 2900.0 C57
2021-12-27 09:33:53 S 07 30 25.087 +24 43 44.72 V C57
2021-12-27 09:33:53 s 1 -169108.51 0 +230455.88 9790.0 C57
2021-12-27 09:43:53 S 07 30 23.369 +24 44 07.98 V C57
2021-12-27 09:43:53 s 1 -169275.37 2 +229865.44 2310.0 C57
2021-12-27 09:53:53 S 07 30 21.470 +24 44 33.04 V C57
2021-12-27 09:53:53 s 1 -169441.29 6 +229273.73 440.0 C57
2021-12-27 10:03:53 S 07 30 20.158 +24 44 54.85 V C57
2021-12-27 10:03:53 s 1 -169606.27 6 +228680.75 4160.0 C57
2021-12-27 10:13:53 S 07 30 17.918 +24 45 19.69 V C57
2021-12-27 10:13:53 s 1 -169770.30 8 +228086.51 3450.0 C57
2021-12-27 10:23:53 S 07 30 16.301 +24 45 42.44 V C57
2021-12-27 10:23:53 s 1 -169933.38 9 +227490.99 8300.0 C57
2021-12-27 10:33:53 S 07 30 14.866 +24 45 56.77 V C57
2021-12-27 10:33:53 s 1 -170095.51 3 +226894.20 8680.0 C57
2021-12-27 10:43:53 S 07 30 13.258 +24 46 22.48 V C57
2021-12-27 10:43:53 s 1 -170256.67 7 +226296.13 4570.0 C57
2021-12-27 10:53:53 S 07 30 11.573 +24 46 46.31 V C57
2021-12-27 10:53:53 s 1 -170416.87 6 +225696.79 5960.0 C57
2021-12-27 11:03:53 S 07 30 10.195 +24 47 10.03 V C57
2021-12-27 11:03:53 s 1 -170576.10 6 +225096.18 2830.0 C57
2021-12-27 11:13:53 S 07 30 08.278 +24 47 32.46 V C57
2021-12-27 11:13:53 s 1 -170734.36 2 +224494.28 5160.0 C57
2021-12-27 11:33:53 S 07 30 05.172 +24 48 21.67 V C57
2021-12-27 11:33:53 s 1 -171047.93 6 +223286.66 6110.0 C57
2021-12-27 11:53:53 S 07 30 01.822 +24 49 04.08 V C57
2021-12-27 11:53:53 s 1 -171357.56 3 +222073.91 8650.0 C57
2021-12-27 12:03:53 S 07 30 00.142 +24 49 18.12 V C57
2021-12-27 12:03:53 s 1 -171510.88 4 +221465.61 7970.0 C57
2021-12-27 12:13:53 S 07 29 58.730 +24 49 43.39 V C57
2021-12-27 12:13:53 s 1 -171663.20 5 +220856.02 2620.0 C57
2021-12-27 12:33:53 S 07 29 54.739 +24 50 32.28 V C57
2021-12-27 12:33:53 s 1 -171964.82 7 +219632.99 7870.0 C57
2021-12-27 12:53:53 S 07 29 51.773 +24 51 13.64 V C57
2021-12-27 12:53:53 s 1 -172262.39 1 +218404.81 4230.0 C57