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
2021-12-29 09:23:53 s 1 -149973.01 9 + 6651.755 6650.0 C57
2021-12-29 09:33:53 S 07 22 41.438 +26 26 21.95 V C57
2021-12-29 09:33:53 s 1 -149495.67 3 + 5709.007 7520.0 C57
2021-12-29 09:53:53 S 07 22 38.333 +26 27 05.51 V C57
2021-12-29 09:53:53 s 1 -148526.06 6 + 3822.956 4620.0 C57
2021-12-29 10:03:53 S 07 22 36.701 +26 27 27.11 V C57
2021-12-29 10:03:53 s 1 -148033.73 4 + 2879.713 560.0 C57
2021-12-29 10:13:53 S 07 22 35.107 +26 27 43.92 V C57
2021-12-29 10:13:53 s 1 -147536.33 4 + 1936.366 4560.0 C57
2021-12-29 10:23:53 S 07 22 33.497 +26 28 07.82 V C57
2021-12-29 10:23:53 s 1 -147033.83 0 + 992.946 6480.0 C57
2021-12-29 10:33:53 S 07 22 32.076 +26 28 28.02 V C57
2021-12-29 10:33:53 s 1 -146526.18 6 + 49.487 6160.0 C57
2021-12-29 10:43:53 S 07 22 30.614 +26 28 47.60 V C57
2021-12-29 10:43:53 s 1 -146013.36 3 - 893.981 3460.0 C57
2021-12-29 10:53:53 S 07 22 29.030 +26 29 04.92 V C57
2021-12-29 10:53:53 s 1 -145495.32 6 - 1837.422 8220.0 C57
2021-12-29 11:03:53 S 07 22 27.432 +26 29 28.39 V C57
2021-12-29 11:03:53 s 1 -144972.03 6 - 2780.802 300.0 C57
2021-12-29 11:13:53 S 07 22 26.136 +26 29 53.63 V C57
2021-12-29 11:13:53 s 1 -144443.45 6 - 3724.086 9530.0 C57
2021-12-29 11:23:53 S 07 22 24.614 +26 30 05.47 V C57
2021-12-29 11:23:53 s 1 -143909.54 8 - 4667.239 5770.0 C57
2021-12-29 11:33:53 S 07 22 23.381 +26 30 29.12 V C57
2021-12-29 11:33:53 s 1 -143370.27 4 - 5610.224 8870.0 C57
2021-12-29 11:43:53 S 07 22 21.622 +26 30 54.43 V C57
2021-12-29 11:43:53 s 1 -142825.59 6 - 6553.003 8660.0 C57
2021-12-29 12:03:53 S 07 22 19.140 +26 31 31.94 V C57
2021-12-29 12:03:53 s 1 -141719.87 2 - 8437.790 7720.0 C57
2021-12-29 12:13:53 S 07 22 17.242 +26 31 52.86 V C57
2021-12-29 12:13:53 s 1 -141158.74 9 - 9379.719 6670.0 C57
2021-12-29 12:23:53 S 07 22 15.485 +26 32 15.11 V C57
2021-12-29 12:23:53 s 1 -140592.06 6 -10321.285 1700.0 C57
2021-12-29 12:33:53 S 07 22 13.874 +26 32 31.92 V C57
2021-12-29 12:33:53 s 1 -140019.78 5 -11262.446 2650.0 C57
2021-12-29 12:43:53 S 07 22 12.895 +26 32 52.84 V C57
2021-12-29 12:43:53 s 1 -139441.86 6 -12203.159 9360.0 C57
2021-12-29 12:53:53 S 07 22 11.028 +26 33 13.86 V C57
2021-12-29 12:53:53 s 1 -138858.27 0 -13143.381 1660.0 C57
2021-12-29 13:03:53 S 07 22 09.785 +26 33 30.38 V C57
2021-12-29 13:03:53 s 1 -138268.95 6 -14083.069 9420.0 C57
2021-12-29 13:13:53 S 07 22 08.434 +26 33 49.28 V C57
2021-12-29 13:13:53 s 1 -137673.88 5 -15022.175 2450.0 C57
2021-12-29 13:33:53 S 07 22 05.395 +26 34 32.92 V C57
2021-12-29 13:33:53 s 1 -136466.31 2 -16898.462 3750.0 C57
2021-12-29 13:43:53 S 07 22 03.569 +26 34 57.00 V C57
2021-12-29 13:43:53 s 1 -135853.72 9 -17835.547 1680.0 C57
2021-12-29 13:53:53 S 07 22 02.350 +26 35 16.08 V C57
2021-12-29 13:53:53 s 1 -135235.22 9 -18771.862 4260.0 C57
2021-12-29 14:03:53 S 07 22 01.015 +26 35 33.68 V C57