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
2021-12-14 12:03:54 S 08 20 08.506 +10 06 16.60 V C57
2021-12-14 12:03:54 s 1 -177452.00 8 +154030.38 1590.0 C57
2021-12-14 12:13:54 S 08 20 07.030 +10 06 47.56 V C57
2021-12-14 12:13:54 s 1 -177471.90 3 +153277.11 9910.0 C57
2021-12-14 12:23:54 S 08 20 05.280 +10 07 15.85 V C57
2021-12-14 12:23:54 s 1 -177490.10 7 +152522.38 840.0 C57
2021-12-14 12:33:54 S 08 20 03.600 +10 07 46.06 V C57
2021-12-14 12:33:54 s 1 -177506.61 0 +151766.19 4350.0 C57
2021-12-14 12:53:54 S 08 20 00.528 +10 08 52.15 V C57
2021-12-14 12:53:54 s 1 -177534.47 2 +150249.41 8930.0 C57
2021-12-14 13:03:54 S 08 19 58.726 +10 09 22.82 V C57
2021-12-14 13:03:54 s 1 -177545.81 3 +149488.82 9920.0 C57
2021-12-14 13:23:54 S 08 19 55.445 +10 10 27.37 V C57
2021-12-14 13:23:54 s 1 -177563.26 3 +147963.25 9090.0 C57
2021-12-14 13:33:54 S 08 19 54.012 +10 11 05.28 V C57
2021-12-14 13:33:54 s 1 -177569.35 2 +147198.26 7190.0 C57
2021-12-14 14:03:54 S 08 19 48.451 +10 12 38.38 V C57
2021-12-14 14:03:54 s 1 -177576.95 4 +144894.48 5040.0 C57
2021-12-14 14:13:54 S 08 19 46.920 +10 13 08.33 V C57
2021-12-14 14:13:54 s 1 -177575.89 8 +144123.61 2020.0 C57
2021-12-14 14:23:54 S 08 19 45.586 +10 13 38.64 V C57
2021-12-14 14:23:54 s 1 -177573.03 0 +143351.28 1120.0 C57
2021-12-14 14:33:54 S 08 19 43.886 +10 14 10.43 V C57
2021-12-14 14:33:54 s 1 -177568.33 9 +142577.47 2290.0 C57
2021-12-14 14:43:54 S 08 19 42.022 +10 14 43.33 V C57
2021-12-14 14:43:54 s 1 -177561.81 5 +141802.18 5480.0 C57
2021-12-14 14:53:54 S 08 19 40.178 +10 15 18.18 V C57
2021-12-14 14:53:54 s 1 -177553.44 6 +141025.43 650.0 C57
2021-12-14 15:03:54 S 08 19 38.429 +10 15 47.27 V C57
2021-12-14 15:03:54 s 1 -177543.22 2 +140247.20 7760.0 C57
2021-12-14 15:13:54 S 08 19 36.876 +10 16 22.58 V C57
2021-12-14 15:13:54 s 1 -177531.13 2 +139467.49 6750.0 C57
2021-12-14 15:23:54 S 08 19 35.460 +10 16 55.92 V C57
2021-12-14 15:23:54 s 1 -177517.16 6 +138686.31 7590.0 C57
2021-12-14 15:33:54 S 08 19 33.514 +10 17 23.42 V C57
2021-12-14 15:33:54 s 1 -177501.31 0 +137903.65 230.0 C57
2021-12-14 15:43:54 S 08 19 31.944 +10 17 57.16 V C57
2021-12-14 15:43:54 s 1 -177483.55 6 +137119.52 4610.0 C57
2021-12-14 15:53:54 S 08 19 30.305 +10 18 26.10 V C57
2021-12-14 15:53:54 s 1 -177463.89 1 +136333.91 700.0 C57
2021-12-14 16:03:54 S 08 19 28.754 +10 19 02.35 V C57
2021-12-14 16:03:54 s 1 -177442.30 4 +135546.82 8450.0 C57
2021-12-14 16:13:54 S 08 19 26.758 +10 19 34.39 V C57
2021-12-14 16:13:54 s 1 -177418.78 3 +134758.26 7810.0 C57
2021-12-14 16:33:54 S 08 19 23.674 +10 20 36.49 V C57
2021-12-14 16:33:54 s 1 -177365.89 4 +133176.69 1150.0 C57
2021-12-14 16:43:54 S 08 19 22.025 +10 21 06.19 V C57
2021-12-14 16:43:54 s 1 -177336.50 3 +132383.69 5040.0 C57
2021-12-14 16:53:54 S 08 19 20.323 +10 21 37.19 V C57
2021-12-14 16:53:54 s 1 -177305.13 2 +131589.21 350.0 C57