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 03:33:54 s 1 -150022.96 3 +274648.07 2460.0 C57
2021-12-13 03:43:54 S 08 25 31.716 +08 22 30.90 V C57
2021-12-13 03:43:54 s 1 -150250.83 9 +274153.94 8390.0 C57
2021-12-13 03:53:54 S 08 25 30.209 +08 23 03.70 V C57
2021-12-13 03:53:54 s 1 -150478.06 1 +273658.60 1310.0 C57
2021-12-13 04:03:54 S 08 25 28.459 +08 23 34.26 V C57
2021-12-13 04:03:54 s 1 -150704.62 4 +273162.07 1210.0 C57
2021-12-13 04:13:54 S 08 25 26.832 +08 24 08.21 V C57
2021-12-13 04:13:54 s 1 -150930.52 7 +272664.34 8070.0 C57
2021-12-13 04:23:54 S 08 25 25.195 +08 24 37.66 V C57
2021-12-13 04:23:54 s 1 -151155.76 6 +272165.42 1880.0 C57
2021-12-13 04:33:54 S 08 25 23.580 +08 25 09.34 V C57
2021-12-13 04:33:54 s 1 -151380.33 9 +271665.29 2630.0 C57
2021-12-13 04:43:54 S 08 25 21.629 +08 25 42.38 V C57
2021-12-13 04:43:54 s 1 -151604.24 2 +271163.95 310.0 C57
2021-12-13 04:53:54 S 08 25 20.119 +08 26 12.16 V C57
2021-12-13 04:53:54 s 1 -151827.47 4 +270661.42 4900.0 C57
2021-12-13 05:03:54 S 08 25 18.446 +08 26 49.38 V C57
2021-12-13 05:03:54 s 1 -152050.03 0 +270157.68 6390.0 C57
2021-12-13 05:13:54 S 08 25 16.836 +08 27 19.73 V C57
2021-12-13 05:13:54 s 1 -152271.90 8 +269652.73 4770.0 C57
2021-12-13 05:23:54 S 08 25 15.324 +08 27 50.18 V C57
2021-12-13 05:23:54 s 1 -152493.10 4 +269146.58 30.0 C57
2021-12-13 05:33:54 S 08 25 13.481 +08 28 22.04 V C57
2021-12-13 05:33:54 s 1 -152713.61 7 +268639.22 2150.0 C57
2021-12-13 05:43:54 S 08 25 11.813 +08 29 02.22 V C57
2021-12-13 05:43:54 s 1 -152933.44 2 +268130.65 1130.0 C57
2021-12-13 06:33:54 S 08 25 03.492 +08 31 35.72 V C57
2021-12-13 06:33:54 s 1 -154022.15 7 +265569.60 8290.0 C57
2021-12-13 06:43:54 S 08 25 01.747 +08 32 12.19 V C57
2021-12-13 06:43:54 s 1 -154237.79 5 +265053.74 8100.0 C57
2021-12-13 06:53:54 S 08 25 00.346 +08 32 40.27 V C57
2021-12-13 06:53:54 s 1 -154452.72 6 +264536.67 4660.0 C57
2021-12-13 07:03:54 S 08 24 58.493 +08 33 14.29 V C57
2021-12-13 07:03:54 s 1 -154666.94 4 +264018.37 7970.0 C57
2021-12-13 07:04:50 C 08 24 52.17 +08 34 32.4 V 703
2021-12-13 07:13:54 S 08 24 56.950 +08 33 47.99 V C57
2021-12-13 07:13:54 s 1 -154880.44 8 +263498.86 8010.0 C57
2021-12-13 07:20:05 C 08 24 49.75 +08 35 21.8 V 703
2021-12-13 07:23:54 S 08 24 55.279 +08 34 17.29 V C57
2021-12-13 07:23:54 s 1 -155093.23 4 +262978.12 4770.0 C57
2021-12-13 07:27:44 C 08 24 48.55 +08 35 46.8 V 703
2021-12-13 07:33:54 S 08 24 53.448 +08 34 50.34 V C57
2021-12-13 07:33:54 s 1 -155305.29 9 +262456.16 8230.0 C57
2021-12-13 07:43:54 S 08 24 51.864 +08 35 21.59 V C57
2021-12-13 07:43:54 s 1 -155516.63 9 +261932.97 8390.0 C57
2021-12-13 07:53:54 S 08 24 50.407 +08 35 54.74 V C57
2021-12-13 07:53:54 s 1 -155727.25 2 +261408.56 5220.0 C57
2021-12-13 08:03:54 S 08 24 48.631 +08 36 28.76 V C57
2021-12-13 08:03:54 s 1 -155937.13 3 +260882.92 8720.0 C57