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
2022-01-02 13:53:53 s 1 +166915.30 1 +239604.45 960.0 C57
2022-01-02 14:03:53 S 07 09 00.648 +29 48 12.42 V C57
2022-01-02 14:03:53 s 1 +166739.60 6 +240183.70 1960.0 C57
2022-01-02 14:13:53 S 07 08 58.778 +29 48 29.77 V C57
2022-01-02 14:13:53 s 1 +166563.01 4 +240761.67 9430.0 C57
2022-01-02 14:33:53 S 07 08 55.843 +29 49 05.95 V C57
2022-01-02 14:33:53 s 1 +166207.14 9 +241913.79 3820.0 C57
2022-01-02 15:03:53 S 07 08 51.689 +29 50 01.00 V C57
2022-01-02 15:03:53 s 1 +165666.71 1 +243632.45 4310.0 C57
2022-01-02 15:13:53 S 07 08 50.254 +29 50 15.65 V C57
2022-01-02 15:13:53 s 1 +165484.81 0 +244202.80 920.0 C57
2022-01-02 15:23:53 S 07 08 48.730 +29 50 33.32 V C57
2022-01-02 15:23:53 s 1 +165302.03 8 +244771.89 4100.0 C57
2022-01-02 15:33:53 S 07 08 47.078 +29 50 51.72 V C57
2022-01-02 15:33:53 s 1 +165118.39 9 +245339.72 3880.0 C57
2022-01-02 15:43:53 S 07 08 45.842 +29 51 08.82 V C57
2022-01-02 15:43:53 s 1 +164933.89 6 +245906.28 270.0 C57
2022-01-02 15:53:53 S 07 08 44.626 +29 51 25.96 V C57
2022-01-02 15:53:53 s 1 +164748.53 4 +246471.58 3300.0 C57
2022-01-02 16:03:53 S 07 08 42.734 +29 51 47.70 V C57
2022-01-02 16:03:53 s 1 +164562.31 6 +247035.62 2960.0 C57
2022-01-02 16:33:53 S 07 08 38.818 +29 52 36.88 V C57
2022-01-02 16:33:53 s 1 +163998.56 4 +248720.20 1990.0 C57
2022-01-02 16:53:53 S 07 08 35.474 +29 53 14.03 V C57
2022-01-02 16:53:53 s 1 +163618.51 9 +249836.99 1530.0 C57
2022-01-02 17:03:53 S 07 08 34.414 +29 53 32.17 V C57
2022-01-02 17:03:53 s 1 +163427.24 5 +250393.50 1390.0 C57
2022-01-02 17:11:53 C 07 07 47.37 +29 47 12.8 N56
2022-01-02 17:13:53 S 07 08 32.717 +29 53 45.89 V C57
2022-01-02 17:13:53 s 1 +163235.14 0 +250948.76 8010.0 C57
2022-01-02 17:33:53 S 07 08 30.173 +29 54 26.24 V C57
2022-01-02 17:33:53 s 1 +162848.45 6 +252055.54 1580.0 C57
2022-01-02 17:37:17 C 07 07 43.65 +29 47 56.7 N56
2022-01-02 17:43:53 S 07 08 28.594 +29 54 45.83 V C57
2022-01-02 17:43:53 s 1 +162653.88 4 +252607.06 8550.0 C57
2022-01-02 17:53:53 S 07 08 27.149 +29 55 02.50 V C57
2022-01-02 17:53:53 s 1 +162458.49 6 +253157.34 2340.0 C57
2022-01-02 18:02:42 C 07 07 39.94 +29 48 40.6 N56
2022-01-02 18:03:53 S 07 08 25.692 +29 55 18.84 V C57
2022-01-02 18:03:53 s 1 +162262.29 5 +253706.37 2960.0 C57
2022-01-02 18:13:53 S 07 08 24.257 +29 55 38.53 V C57
2022-01-02 18:13:53 s 1 +162065.28 7 +254254.16 430.0 C57
2022-01-02 18:23:53 S 07 08 22.687 +29 55 54.91 V C57
2022-01-02 18:23:53 s 1 +161867.47 3 +254800.71 4750.0 C57
2022-01-02 18:33:53 S 07 08 21.557 +29 56 11.98 V C57
2022-01-02 18:33:53 s 1 +161668.85 8 +255346.02 5950.0 C57
2022-01-02 18:43:53 S 07 08 20.047 +29 56 28.03 V C57
2022-01-02 18:43:53 s 1 +161469.44 5 +255890.09 4030.0 C57
2022-01-02 18:53:53 S 07 08 18.602 +29 56 52.04 V C57
2022-01-02 18:53:53 s 1 +161269.23 8 +256432.92 9020.0 C57