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
2021-12-20 20:23:54 S 07 56 58.531 +17 59 47.44 V C57
2021-12-20 20:23:54 s 1 +127416.75 2 +316729.82 1740.0 C57
2021-12-20 20:33:54 S 07 56 56.998 +18 00 16.09 V C57
2021-12-20 20:33:54 s 1 +127136.39 7 +317113.66 5230.0 C57
2021-12-20 20:43:54 S 07 56 55.363 +18 00 45.11 V C57
2021-12-20 20:43:54 s 1 +126855.58 5 +317496.40 7080.0 C57
2021-12-20 20:53:54 S 07 56 53.794 +18 01 13.66 V C57
2021-12-20 20:53:54 s 1 +126574.31 7 +317878.01 7300.0 C57
2021-12-20 21:03:54 S 07 56 52.142 +18 01 40.48 V C57
2021-12-20 21:03:54 s 1 +126292.59 7 +318258.52 5890.0 C57
2021-12-20 21:23:54 S 07 56 48.922 +18 02 37.72 V C57
2021-12-20 21:23:54 s 1 +125727.80 4 +319016.19 8220.0 C57
2021-12-20 21:33:54 S 07 56 47.530 +18 03 06.08 V C57
2021-12-20 21:33:54 s 1 +125444.73 5 +319393.36 1980.0 C57
2021-12-20 21:53:54 S 07 56 43.910 +18 04 07.10 V C57
2021-12-20 21:53:54 s 1 +124877.26 1 +320144.36 4710.0 C57
2021-12-20 22:03:54 S 07 56 42.379 +18 04 29.17 V C57
2021-12-20 22:03:54 s 1 +124592.86 0 +320518.21 3710.0 C57
2021-12-20 23:13:54 S 07 56 30.814 +18 07 54.66 V C57
2021-12-20 23:13:54 s 1 +122589.83 2 +323104.14 3030.0 C57
2021-12-20 23:23:54 S 07 56 28.877 +18 08 27.17 V C57
2021-12-20 23:23:54 s 1 +122301.96 0 +323469.15 9640.0 C57
2021-12-20 23:43:54 S 07 56 25.754 +18 09 18.90 V C57
2021-12-20 23:43:54 s 1 +121724.94 2 +324195.87 8330.0 C57
2021-12-21 00:03:54 S 07 56 23.590 +18 10 13.40 V C57
2021-12-21 00:03:54 s 1 +121146.23 5 +324918.19 1020.0 C57
2021-12-21 00:13:54 S 07 56 20.724 +18 10 50.66 V C57
2021-12-21 00:13:54 s 1 +120856.25 3 +325277.70 130.0 C57
2021-12-21 00:23:54 S 07 56 19.159 +18 11 15.94 V C57
2021-12-21 00:23:54 s 1 +120565.85 4 +325636.12 7760.0 C57
2021-12-21 00:33:54 S 07 56 17.755 +18 11 42.54 V C57
2021-12-21 00:33:54 s 1 +120275.04 0 +325993.44 3930.0 C57
2021-12-21 00:53:54 S 07 56 14.328 +18 12 43.02 V C57
2021-12-21 00:53:54 s 1 +119692.17 3 +326704.81 1860.0 C57
2021-12-21 01:03:54 S 07 56 12.720 +18 13 09.12 V C57
2021-12-21 01:03:54 s 1 +119400.12 3 +327058.85 3650.0 C57
2021-12-21 01:13:54 S 07 56 10.913 +18 13 40.87 V C57
2021-12-21 01:13:54 s 1 +119107.66 6 +327411.80 4000.0 C57
2021-12-21 01:23:54 S 07 56 09.086 +18 14 09.82 V C57
2021-12-21 01:23:54 s 1 +118814.80 2 +327763.66 2900.0 C57
2021-12-21 01:43:54 S 07 56 06.187 +18 15 03.60 V C57
2021-12-21 01:43:54 s 1 +118227.86 1 +328464.10 6440.0 C57
2021-12-21 02:03:54 S 07 56 02.760 +18 15 56.99 V C57
2021-12-21 02:03:54 s 1 +117639.31 5 +329160.20 4310.0 C57
2021-12-21 02:13:54 S 07 56 01.183 +18 16 26.00 V C57
2021-12-21 02:13:54 s 1 +117344.44 4 +329506.61 6140.0 C57
2021-12-21 02:23:54 S 07 55 59.503 +18 16 56.50 V C57
2021-12-21 02:23:54 s 1 +117049.17 6 +329851.94 6570.0 C57
2021-12-21 02:33:54 S 07 55 57.838 +18 17 29.44 V C57
2021-12-21 02:33:54 s 1 +116753.51 4 +330196.18 5610.0 C57