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 18:23:53 s 1 -176429.22 2 +88321.304 1780.0 C57
2021-12-28 18:43:53 S 07 24 59.570 +25 55 46.67 V C57
2021-12-28 18:43:53 s 1 -176130.04 1 +86605.286 5850.0 C57
2021-12-28 18:53:53 S 07 24 58.202 +25 56 00.31 V C57
2021-12-28 18:53:53 s 1 -175976.43 6 +85745.297 9970.0 C57
2021-12-28 19:03:53 S 07 24 56.695 +25 56 24.54 V C57
2021-12-28 19:03:53 s 1 -175820.13 4 +84883.992 2060.0 C57
2021-12-28 19:23:53 S 07 24 53.460 +25 57 01.66 V C57
2021-12-28 19:23:53 s 1 -175499.36 4 +83157.450 9840.0 C57
2021-12-28 19:43:53 S 07 24 50.011 +25 57 46.51 V C57
2021-12-28 19:43:53 s 1 -175167.59 1 +81425.691 8560.0 C57
2021-12-28 19:53:53 S 07 24 48.494 +25 58 07.50 V C57
2021-12-28 19:53:53 s 1 -174997.53 3 +80557.865 9350.0 C57
2021-12-28 20:03:53 S 07 24 47.491 +25 58 24.82 V C57
2021-12-28 20:03:53 s 1 -174824.67 0 +79688.747 7640.0 C57
2021-12-28 20:13:53 S 07 24 45.756 +25 58 48.22 V C57
2021-12-28 20:13:53 s 1 -174648.98 5 +78818.340 3360.0 C57
2021-12-28 20:23:53 S 07 24 43.994 +25 59 11.54 V C57
2021-12-28 20:23:53 s 1 -174470.45 8 +77946.651 6430.0 C57
2021-12-28 20:33:53 S 07 24 42.523 +25 59 29.98 V C57
2021-12-28 20:33:53 s 1 -174289.07 1 +77073.682 6780.0 C57
2021-12-28 20:43:53 S 07 24 40.370 +25 59 51.54 V C57
2021-12-28 20:43:53 s 1 -174104.80 5 +76199.438 4320.0 C57
2021-12-28 20:53:53 S 07 24 39.410 +26 00 11.48 V C57
2021-12-28 20:53:53 s 1 -173917.64 1 +75323.926 8970.0 C57
2021-12-28 21:03:53 S 07 24 37.510 +26 00 30.82 V C57
2021-12-28 21:03:53 s 1 -173727.56 1 +74447.148 660.0 C57
2021-12-28 21:43:53 S 07 24 31.363 +26 01 58.04 V C57
2021-12-28 21:43:53 s 1 -172937.68 4 +70927.494 6070.0 C57
2021-12-28 21:53:53 S 07 24 29.453 +26 02 16.40 V C57
2021-12-28 21:53:53 s 1 -172732.72 7 +70044.472 1670.0 C57
2021-12-28 22:03:53 S 07 24 27.744 +26 02 40.27 V C57
2021-12-28 22:03:53 s 1 -172524.73 7 +69160.217 3810.0 C57
2021-12-28 22:13:53 S 07 24 26.285 +26 02 59.06 V C57
2021-12-28 22:13:53 s 1 -172313.69 1 +68274.736 2380.0 C57
2021-12-28 22:23:53 S 07 24 25.142 +26 03 19.69 V C57
2021-12-28 22:23:53 s 1 -172099.56 9 +67388.034 7320.0 C57
2021-12-28 22:33:53 S 07 24 23.530 +26 03 43.88 V C57
2021-12-28 22:33:53 s 1 -171882.35 2 +66500.119 8520.0 C57
2021-12-28 22:43:53 S 07 24 21.758 +26 04 01.99 V C57
2021-12-28 22:43:53 s 1 -171662.01 8 +65610.995 5910.0 C57
2021-12-28 22:53:53 S 07 24 20.388 +26 04 19.81 V C57
2021-12-28 22:53:53 s 1 -171438.54 6 +64720.670 9390.0 C57
2021-12-28 23:03:53 S 07 24 18.852 +26 04 40.37 V C57
2021-12-28 23:03:53 s 1 -171211.91 6 +63829.150 8870.0 C57
2021-12-28 23:13:53 S 07 24 17.136 +26 05 07.19 V C57
2021-12-28 23:13:53 s 1 -170982.10 5 +62936.443 4260.0 C57
2021-12-28 23:23:53 S 07 24 15.727 +26 05 23.60 V C57
2021-12-28 23:23:53 s 1 -170749.09 2 +62042.555 5480.0 C57
2021-12-28 23:33:53 S 07 24 14.035 +26 05 45.67 V C57