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
2021-12-13 17:23:54 S 08 23 15.581 +09 06 31.54 V C57
2021-12-13 17:23:54 s 1 -166417.83 3 +229449.88 9640.0 C57
2021-12-13 17:33:54 S 08 23 13.723 +09 07 01.92 V C57
2021-12-13 17:33:54 s 1 -166580.11 9 +228852.04 7710.0 C57
2021-12-13 17:43:54 S 08 23 12.048 +09 07 32.77 V C57
2021-12-13 17:43:54 s 1 -166741.45 3 +228252.90 1510.0 C57
2021-12-13 17:53:54 S 08 23 10.267 +09 08 08.09 V C57
2021-12-13 17:53:54 s 1 -166901.83 2 +227652.44 1010.0 C57
2021-12-13 18:03:54 S 08 23 09.170 +09 08 38.44 V C57
2021-12-13 18:03:54 s 1 -167061.24 9 +227050.68 6200.0 C57
2021-12-13 18:13:54 S 08 23 07.258 +09 09 11.20 V C57
2021-12-13 18:13:54 s 1 -167219.70 2 +226447.60 7060.0 C57
2021-12-13 18:23:54 S 08 23 05.616 +09 09 44.35 V C57
2021-12-13 18:23:54 s 1 -167377.18 5 +225843.21 3560.0 C57
2021-12-13 18:33:54 S 08 23 04.056 +09 10 12.22 V C57
2021-12-13 18:33:54 s 1 -167533.69 4 +225237.51 5700.0 C57
2021-12-13 18:43:54 S 08 23 02.326 +09 10 45.91 V C57
2021-12-13 18:43:54 s 1 -167689.22 4 +224630.49 3440.0 C57
2021-12-13 18:53:54 S 08 23 00.358 +09 11 16.37 V C57
2021-12-13 18:53:54 s 1 -167843.77 0 +224022.15 6780.0 C57
2021-12-13 19:03:54 S 08 22 59.035 +09 11 51.40 V C57
2021-12-13 19:03:54 s 1 -167997.32 8 +223412.49 5680.0 C57
2021-12-13 19:13:54 S 08 22 57.300 +09 12 23.04 V C57
2021-12-13 19:13:54 s 1 -168149.89 4 +222801.51 140.0 C57
2021-12-13 19:23:54 S 08 22 55.649 +09 12 54.76 V C57
2021-12-13 19:23:54 s 1 -168301.46 1 +222189.21 120.0 C57
2021-12-13 19:33:54 S 08 22 54.146 +09 13 27.19 V C57
2021-12-13 19:33:54 s 1 -168452.02 6 +221575.58 5620.0 C57
2021-12-13 19:43:54 S 08 22 52.099 +09 13 59.27 V C57
2021-12-13 19:43:54 s 1 -168601.58 4 +220960.63 6600.0 C57
2021-12-13 19:53:54 S 08 22 50.530 +09 14 28.68 V C57
2021-12-13 19:53:54 s 1 -168750.13 0 +220344.35 3050.0 C57
2021-12-13 20:03:54 S 08 22 49.073 +09 15 02.20 V C57
2021-12-13 20:03:54 s 1 -168897.65 9 +219726.75 4960.0 C57
2021-12-13 20:13:54 S 08 22 47.273 +09 15 34.34 V C57
2021-12-13 20:13:54 s 1 -169044.16 6 +219107.81 2290.0 C57
2021-12-13 20:23:54 S 08 22 45.571 +09 16 11.32 V C57
2021-12-13 20:23:54 s 1 -169189.64 7 +218487.55 5020.0 C57
2021-12-13 20:33:54 S 08 22 43.939 +09 16 38.78 V C57
2021-12-13 20:33:54 s 1 -169334.09 5 +217865.95 3140.0 C57
2021-12-13 20:43:54 S 08 22 42.329 +09 17 10.18 V C57
2021-12-13 20:43:54 s 1 -169477.50 7 +217243.02 6630.0 C57
2021-12-13 21:03:54 S 08 22 38.858 +09 18 14.29 V C57
2021-12-13 21:03:54 s 1 -169761.20 2 +215993.14 9620.0 C57
2021-12-13 21:13:54 S 08 22 37.205 +09 18 45.54 V C57
2021-12-13 21:13:54 s 1 -169901.47 3 +215366.20 9070.0 C57
2021-12-13 21:23:54 S 08 22 35.676 +09 19 18.62 V C57
2021-12-13 21:23:54 s 1 -170040.68 9 +214737.92 3810.0 C57
2021-12-13 21:33:54 S 08 22 34.176 +09 19 52.14 V C57
2021-12-13 21:33:54 s 1 -170178.84 2 +214108.29 3800.0 C57