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
2021-12-14 07:33:54 S 08 20 53.954 +09 51 55.55 V C57
2021-12-14 07:33:54 s 1 -176308.73 8 +173820.15 4750.0 C57
2021-12-14 07:43:54 S 08 20 52.080 +09 52 21.50 V C57
2021-12-14 07:43:54 s 1 -176370.91 4 +173105.92 8290.0 C57
2021-12-14 07:53:54 S 08 20 50.438 +09 52 57.07 V C57
2021-12-14 07:53:54 s 1 -176431.63 4 +172390.27 5420.0 C57
2021-12-14 08:03:54 S 08 20 48.660 +09 53 26.12 V C57
2021-12-14 08:03:54 s 1 -176490.88 9 +171673.18 6120.0 C57
2021-12-14 08:13:54 S 08 20 47.009 +09 54 01.04 V C57
2021-12-14 08:13:54 s 1 -176548.67 1 +170954.66 350.0 C57
2021-12-14 08:23:54 S 08 20 45.535 +09 54 29.05 V C57
2021-12-14 08:23:54 s 1 -176604.97 3 +170234.71 8070.0 C57
2021-12-14 08:33:54 S 08 20 43.922 +09 55 06.82 V C57
2021-12-14 08:33:54 s 1 -176659.78 5 +169513.32 9260.0 C57
2021-12-14 08:43:54 S 08 20 42.130 +09 55 34.54 V C57
2021-12-14 08:43:54 s 1 -176713.10 0 +168790.49 3870.0 C57
2021-12-14 08:53:54 S 08 20 40.654 +09 56 07.22 V C57
2021-12-14 08:53:54 s 1 -176764.91 1 +168066.23 1880.0 C57
2021-12-14 09:03:54 S 08 20 38.803 +09 56 38.54 V C57
2021-12-14 09:03:54 s 1 -176815.20 7 +167340.52 3240.0 C57
2021-12-14 09:13:54 S 08 20 37.049 +09 57 09.72 V C57
2021-12-14 09:13:54 s 1 -176863.98 2 +166613.38 7940.0 C57
2021-12-14 09:23:54 S 08 20 35.220 +09 57 43.49 V C57
2021-12-14 09:23:54 s 1 -176911.22 8 +165884.79 5920.0 C57
2021-12-14 09:33:54 S 08 20 33.780 +09 58 17.80 V C57
2021-12-14 09:33:54 s 1 -176956.93 4 +165154.76 7160.0 C57
2021-12-14 09:43:54 S 08 20 32.083 +09 58 47.42 V C57
2021-12-14 09:43:54 s 1 -177001.09 4 +164423.29 1610.0 C57
2021-12-14 09:53:54 S 08 20 30.502 +09 59 14.28 V C57
2021-12-14 09:53:54 s 1 -177043.69 8 +163690.37 9250.0 C57
2021-12-14 10:03:54 S 08 20 28.668 +09 59 50.86 V C57
2021-12-14 10:03:54 s 1 -177084.73 9 +162956.00 40.0 C57
2021-12-14 10:13:54 S 08 20 27.034 +10 00 21.78 V C57
2021-12-14 10:13:54 s 1 -177124.20 6 +162220.19 3940.0 C57
2021-12-14 10:23:54 S 08 20 25.205 +10 00 57.60 V C57
2021-12-14 10:23:54 s 1 -177162.09 3 +161482.93 920.0 C57
2021-12-14 10:43:54 S 08 20 21.689 +10 02 02.22 V C57
2021-12-14 10:43:54 s 1 -177233.08 5 +160004.05 3950.0 C57
2021-12-14 11:03:54 S 08 20 18.758 +10 03 06.23 V C57
2021-12-14 11:03:54 s 1 -177297.64 6 +158519.37 8830.0 C57
2021-12-14 11:13:54 S 08 20 16.810 +10 03 34.09 V C57
2021-12-14 11:13:54 s 1 -177327.49 2 +157774.85 630.0 C57
2021-12-14 11:23:54 S 08 20 15.218 +10 04 04.22 V C57
2021-12-14 11:23:54 s 1 -177355.70 3 +157028.87 5270.0 C57
2021-12-14 11:33:54 S 08 20 13.601 +10 04 39.47 V C57
2021-12-14 11:33:54 s 1 -177382.26 9 +156281.44 2730.0 C57
2021-12-14 11:43:54 S 08 20 12.022 +10 05 09.96 V C57
2021-12-14 11:43:54 s 1 -177407.18 2 +155532.54 2960.0 C57
2021-12-14 11:53:54 S 08 20 10.339 +10 05 43.33 V C57
2021-12-14 11:53:54 s 1 -177430.43 1 +154782.19 5930.0 C57