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
2021-12-13 21:43:54 S 08 22 31.958 +09 20 22.99 V C57
2021-12-13 21:43:54 s 1 -170315.92 8 +213477.33 9030.0 C57
2021-12-13 21:53:54 S 08 22 30.761 +09 20 53.38 V C57
2021-12-13 21:53:54 s 1 -170451.94 1 +212845.01 9470.0 C57
2021-12-13 22:03:54 S 08 22 29.107 +09 21 30.64 V C57
2021-12-13 22:03:54 s 1 -170586.87 7 +212211.35 5100.0 C57
2021-12-13 22:13:54 S 08 22 27.235 +09 21 59.65 V C57
2021-12-13 22:13:54 s 1 -170720.73 0 +211576.35 5910.0 C57
2021-12-13 22:23:54 S 08 22 25.524 +09 22 31.37 V C57
2021-12-13 22:23:54 s 1 -170853.49 5 +210940.00 1860.0 C57
2021-12-13 22:33:54 S 08 22 23.786 +09 23 02.18 V C57
2021-12-13 22:33:54 s 1 -170985.16 6 +210302.29 2930.0 C57
2021-12-13 22:43:54 S 08 22 21.864 +09 23 38.04 V C57
2021-12-13 22:43:54 s 1 -171115.73 8 +209663.23 9110.0 C57
2021-12-13 22:53:54 S 08 22 20.957 +09 24 05.87 V C57
2021-12-13 22:53:54 s 1 -171245.20 7 +209022.82 370.0 C57
2021-12-13 23:03:54 S 08 22 18.869 +09 24 40.32 V C57
2021-12-13 23:03:54 s 1 -171373.56 5 +208381.06 6680.0 C57
2021-12-13 23:13:54 S 08 22 17.136 +09 25 13.51 V C57
2021-12-13 23:13:54 s 1 -171500.80 8 +207737.94 8020.0 C57
2021-12-13 23:23:54 S 08 22 15.473 +09 25 44.47 V C57
2021-12-13 23:23:54 s 1 -171626.93 0 +207093.46 4380.0 C57
2021-12-13 23:33:54 S 08 22 13.608 +09 26 22.34 V C57
2021-12-13 23:33:54 s 1 -171751.92 7 +206447.62 5720.0 C57
2021-12-13 23:43:54 S 08 22 12.257 +09 26 44.52 V C57
2021-12-13 23:43:54 s 1 -171875.79 1 +205800.42 2020.0 C57
2021-12-13 23:53:54 S 08 22 10.764 +09 27 24.01 V C57
2021-12-13 23:53:54 s 1 -171998.51 8 +205151.86 3270.0 C57
2021-12-14 00:03:54 S 08 22 08.940 +09 27 47.27 V C57
2021-12-14 00:03:54 s 1 -172120.10 1 +204501.94 9430.0 C57
2021-12-14 00:13:54 S 08 22 07.123 +09 28 25.07 V C57
2021-12-14 00:13:54 s 1 -172240.53 6 +203850.65 480.0 C57
2021-12-14 00:23:54 S 08 22 05.645 +09 28 58.44 V C57
2021-12-14 00:23:54 s 1 -172359.81 7 +203197.99 6390.0 C57
2021-12-14 00:33:54 S 08 22 03.787 +09 29 25.76 V C57
2021-12-14 00:33:54 s 1 -172477.93 7 +202543.97 7150.0 C57
2021-12-14 00:43:54 S 08 22 02.534 +09 29 59.24 V C57
2021-12-14 00:43:54 s 1 -172594.89 1 +201888.57 2730.0 C57
2021-12-14 00:53:54 S 08 22 00.670 +09 30 31.10 V C57
2021-12-14 00:53:54 s 1 -172710.67 3 +201231.81 3100.0 C57
2021-12-14 01:03:54 S 08 21 58.759 +09 31 02.89 V C57
2021-12-14 01:03:54 s 1 -172825.27 7 +200573.67 8240.0 C57
2021-12-14 01:13:54 S 08 21 56.878 +09 31 38.42 V C57
2021-12-14 01:13:54 s 1 -172938.69 7 +199914.15 8130.0 C57
2021-12-14 01:23:54 S 08 21 55.546 +09 32 06.18 V C57
2021-12-14 01:23:54 s 1 -173050.92 8 +199253.27 2730.0 C57
2021-12-14 01:33:54 S 08 21 54.067 +09 32 38.18 V C57
2021-12-14 01:33:54 s 1 -173161.96 3 +198591.00 2020.0 C57
2021-12-14 01:43:54 S 08 21 52.222 +09 33 10.01 V C57
2021-12-14 01:43:54 s 1 -173271.79 6 +197927.36 5990.0 C57