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
2021-12-28 04:43:53 s 1 -180895.53 7 +153948.92 6830.0 C57
2021-12-28 04:53:53 S 07 27 13.524 +25 26 10.86 V C57
2021-12-28 04:53:53 s 1 -180919.05 1 +153205.01 8810.0 C57
2021-12-28 05:03:53 S 07 27 12.065 +25 26 40.45 V C57
2021-12-28 05:03:53 s 1 -180940.91 7 +152459.72 3290.0 C57
2021-12-28 05:13:53 S 07 27 10.049 +25 26 59.75 V C57
2021-12-28 05:13:53 s 1 -180961.12 7 +151713.03 240.0 C57
2021-12-28 05:23:53 S 07 27 08.686 +25 27 23.72 V C57
2021-12-28 05:23:53 s 1 -180979.67 2 +150964.94 9600.0 C57
2021-12-28 05:33:53 S 07 27 06.859 +25 27 40.36 V C57
2021-12-28 05:33:53 s 1 -180996.54 2 +150215.47 1340.0 C57
2021-12-28 05:43:53 S 07 27 05.150 +25 28 04.01 V C57
2021-12-28 05:43:53 s 1 -181011.72 8 +149464.60 5420.0 C57
2021-12-28 05:53:53 S 07 27 03.946 +25 28 20.46 V C57
2021-12-28 05:53:53 s 1 -181025.22 2 +148712.34 1810.0 C57
2021-12-28 06:03:53 S 07 27 02.081 +25 28 47.14 V C57
2021-12-28 06:03:53 s 1 -181037.01 3 +147958.68 460.0 C57
2021-12-28 06:13:53 S 07 27 00.502 +25 29 09.46 V C57
2021-12-28 06:13:53 s 1 -181047.09 3 +147203.62 1330.0 C57
2021-12-28 06:33:53 S 07 26 57.115 +25 29 51.32 V C57
2021-12-28 06:33:53 s 1 -181062.08 2 +145689.32 9560.0 C57
2021-12-28 06:43:53 S 07 26 55.812 +25 30 14.26 V C57
2021-12-28 06:43:53 s 1 -181066.97 1 +144930.08 6840.0 C57
2021-12-28 07:03:53 S 07 26 52.318 +25 30 56.34 V C57
2021-12-28 07:03:53 s 1 -181071.49 3 +143407.40 7540.0 C57
2021-12-28 07:23:53 S 07 26 48.907 +25 31 33.42 V C57
2021-12-28 07:23:53 s 1 -181068.94 0 +141879.13 6120.0 C57
2021-12-28 07:33:53 S 07 26 47.753 +25 31 59.52 V C57
2021-12-28 07:33:53 s 1 -181064.98 6 +141112.89 3250.0 C57
2021-12-28 07:43:53 S 07 26 45.720 +25 32 21.73 V C57
2021-12-28 07:43:53 s 1 -181059.23 3 +140345.26 2240.0 C57
2021-12-28 07:53:53 S 07 26 44.220 +25 32 47.44 V C57
2021-12-28 07:53:53 s 1 -181051.67 2 +139576.23 3020.0 C57
2021-12-28 08:03:53 S 07 26 42.713 +25 33 00.79 V C57
2021-12-28 08:03:53 s 1 -181042.29 3 +138805.80 5550.0 C57
2021-12-28 08:23:53 S 07 26 39.204 +25 33 47.41 V C57
2021-12-28 08:23:53 s 1 -181018.03 8 +137260.74 5710.0 C57
2021-12-28 08:33:53 S 07 26 37.927 +25 34 12.58 V C57
2021-12-28 08:33:53 s 1 -181003.14 2 +136486.11 3240.0 C57
2021-12-28 08:43:53 S 07 26 36.156 +25 34 30.94 V C57
2021-12-28 08:43:53 s 1 -180986.38 6 +135710.08 2350.0 C57
2021-12-28 08:53:53 S 07 26 34.500 +25 34 46.99 V C57
2021-12-28 08:53:53 s 1 -180967.76 0 +134932.65 2990.0 C57
2021-12-28 09:13:53 S 07 26 31.202 +25 35 36.64 V C57
2021-12-28 09:13:53 s 1 -180924.85 6 +133373.59 8680.0 C57
2021-12-28 09:23:53 S 07 26 29.880 +25 35 54.56 V C57
2021-12-28 09:23:53 s 1 -180900.55 5 +132591.96 3640.0 C57
2021-12-28 09:33:53 S 07 26 28.272 +25 36 15.59 V C57
2021-12-28 09:33:53 s 1 -180874.34 2 +131808.93 9930.0 C57
2021-12-28 09:43:53 S 07 26 26.299 +25 36 36.25 V C57