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
2021-12-27 17:53:53 S 07 29 02.059 +25 02 19.36 V C57
2021-12-27 17:53:53 s 1 -176212.38 9 +199356.90 5400.0 C57
2021-12-27 18:03:53 S 07 29 00.458 +25 02 36.60 V C57
2021-12-27 18:03:53 s 1 -176326.59 7 +198701.58 3240.0 C57
2021-12-27 18:13:05 C 07 29 17.23 +25 01 26.0 V D29
2021-12-27 18:13:53 S 07 28 58.752 +25 02 58.92 V C57
2021-12-27 18:13:53 s 1 -176439.62 0 +198044.92 5610.0 C57
2021-12-27 18:23:53 S 07 28 57.031 +25 03 20.63 V C57
2021-12-27 18:23:53 s 1 -176551.45 4 +197386.94 2490.0 C57
2021-12-27 18:33:53 S 07 28 55.598 +25 03 48.28 V C57
2021-12-27 18:33:53 s 1 -176662.09 1 +196727.62 3840.0 C57
2021-12-27 18:43:53 S 07 28 53.686 +25 04 06.78 V C57
2021-12-27 18:43:53 s 1 -176771.52 8 +196066.98 9650.0 C57
2021-12-27 19:13:53 S 07 28 48.694 +25 05 10.75 V C57
2021-12-27 19:13:53 s 1 -177092.56 9 +194077.03 3520.0 C57
2021-12-27 19:33:53 S 07 28 45.365 +25 05 56.76 V C57
2021-12-27 19:33:53 s 1 -177300.48 1 +192743.72 4550.0 C57
2021-12-27 19:43:53 S 07 28 43.848 +25 06 20.48 V C57
2021-12-27 19:43:53 s 1 -177402.58 4 +192075.06 6520.0 C57
2021-12-27 19:53:53 S 07 28 42.382 +25 06 45.00 V C57
2021-12-27 19:53:53 s 1 -177503.44 4 +191405.05 2770.0 C57
2021-12-27 20:03:53 S 07 28 40.104 +25 07 07.90 V C57
2021-12-27 20:03:53 s 1 -177603.05 6 +190733.71 3250.0 C57
2021-12-27 20:13:53 S 07 28 38.527 +25 07 33.53 V C57
2021-12-27 20:13:53 s 1 -177701.41 2 +190061.02 7960.0 C57
2021-12-27 20:33:53 S 07 28 35.724 +25 08 08.12 V C57
2021-12-27 20:33:53 s 1 -177894.33 3 +188711.61 9900.0 C57
2021-12-27 20:43:53 S 07 28 33.715 +25 08 30.19 V C57
2021-12-27 20:43:53 s 1 -177988.88 6 +188034.89 7080.0 C57
2021-12-27 21:03:53 S 07 28 30.593 +25 09 12.56 V C57
2021-12-27 21:03:53 s 1 -178174.14 5 +186677.40 3750.0 C57
2021-12-27 21:13:53 S 07 28 28.783 +25 09 37.80 V C57
2021-12-27 21:13:53 s 1 -178264.83 8 +185996.63 3170.0 C57
2021-12-27 21:23:53 S 07 28 27.223 +25 10 00.16 V C57
2021-12-27 21:23:53 s 1 -178354.23 2 +185314.52 6610.0 C57
2021-12-27 21:33:53 S 07 28 25.454 +25 10 23.05 V C57
2021-12-27 21:33:53 s 1 -178442.32 0 +184631.05 4050.0 C57
2021-12-27 22:03:53 S 07 28 20.717 +25 11 23.96 V C57
2021-12-27 22:03:53 s 1 -178698.68 4 +182572.52 30.0 C57
2021-12-27 22:13:53 S 07 28 18.962 +25 11 50.10 V C57
2021-12-27 22:13:53 s 1 -178781.48 3 +181883.63 3160.0 C57
2021-12-27 22:23:53 S 07 28 17.467 +25 12 08.10 V C57
2021-12-27 22:23:53 s 1 -178862.94 4 +181193.39 130.0 C57
2021-12-27 22:43:53 S 07 28 14.402 +25 12 49.57 V C57
2021-12-27 22:43:53 s 1 -179021.82 2 +179808.83 5510.0 C57
2021-12-27 23:03:53 S 07 28 11.050 +25 13 38.64 V C57
2021-12-27 23:03:53 s 1 -179175.26 3 +178418.83 5920.0 C57
2021-12-27 23:23:53 S 07 28 07.826 +25 14 22.92 V C57
2021-12-27 23:23:53 s 1 -179323.21 3 +177023.38 1140.0 C57
2021-12-27 23:33:53 S 07 28 05.856 +25 14 38.58 V C57