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
2021-12-26 23:43:53 S 07 32 03.257 +24 21 38.30 V C57
2021-12-26 23:43:53 s 1 -157741.32 2 +263090.94 720.0 C57
2021-12-26 23:53:53 S 07 32 01.968 +24 21 55.76 V C57
2021-12-26 23:53:53 s 1 -157956.88 3 +262573.20 2520.0 C57
2021-12-27 00:03:53 S 07 32 00.202 +24 22 20.32 V C57
2021-12-27 00:03:53 s 1 -158171.71 7 +262054.26 870.0 C57
2021-12-27 00:13:53 S 07 31 58.349 +24 22 41.92 V C57
2021-12-27 00:13:53 s 1 -158385.82 1 +261534.11 5760.0 C57
2021-12-27 00:23:53 S 07 31 57.173 +24 23 01.79 V C57
2021-12-27 00:23:53 s 1 -158599.19 3 +261012.77 7170.0 C57
2021-12-27 00:43:53 S 07 31 53.546 +24 23 50.32 V C57
2021-12-27 00:43:53 s 1 -159023.72 7 +259966.47 9530.0 C57
2021-12-27 00:53:53 S 07 31 51.869 +24 24 15.52 V C57
2021-12-27 00:53:53 s 1 -159234.88 2 +259441.52 440.0 C57
2021-12-27 01:03:53 S 07 31 50.136 +24 24 33.26 V C57
2021-12-27 01:03:53 s 1 -159445.29 3 +258915.36 7820.0 C57
2021-12-27 01:13:53 S 07 31 48.636 +24 24 53.68 V C57
2021-12-27 01:13:53 s 1 -159654.95 4 +258388.00 1650.0 C57
2021-12-27 01:23:53 S 07 31 46.956 +24 25 24.82 V C57
2021-12-27 01:23:53 s 1 -159863.86 5 +257859.42 1930.0 C57
2021-12-27 01:33:53 S 07 31 45.005 +24 25 46.74 V C57
2021-12-27 01:33:53 s 1 -160072.02 0 +257329.64 8630.0 C57
2021-12-27 01:43:53 S 07 31 43.229 +24 26 05.89 V C57
2021-12-27 01:43:53 s 1 -160279.41 8 +256798.65 1750.0 C57
2021-12-27 02:03:53 S 07 31 39.998 +24 26 54.02 V C57
2021-12-27 02:03:53 s 1 -160691.92 5 +255733.03 7160.0 C57
2021-12-27 02:13:53 S 07 31 38.568 +24 27 15.84 V C57
2021-12-27 02:13:53 s 1 -160897.02 9 +255198.40 9430.0 C57
2021-12-27 02:23:53 S 07 31 36.643 +24 27 36.11 V C57
2021-12-27 02:23:53 s 1 -161101.36 2 +254662.56 8050.0 C57
2021-12-27 02:33:53 S 07 31 35.076 +24 28 04.01 V C57
2021-12-27 02:33:53 s 1 -161304.92 1 +254125.50 3010.0 C57
2021-12-27 02:43:53 S 07 31 33.408 +24 28 23.95 V C57
2021-12-27 02:43:53 s 1 -161507.70 2 +253587.22 4300.0 C57
2021-12-27 02:53:53 S 07 31 31.570 +24 28 47.24 V C57
2021-12-27 02:53:53 s 1 -161709.70 1 +253047.73 1900.0 C57
2021-12-27 03:03:53 S 07 31 29.928 +24 29 10.68 V C57
2021-12-27 03:03:53 s 1 -161910.91 7 +252507.02 5790.0 C57
2021-12-27 03:13:53 S 07 31 28.495 +24 29 32.21 V C57
2021-12-27 03:13:53 s 1 -162111.34 4 +251965.08 5970.0 C57
2021-12-27 03:23:53 S 07 31 26.645 +24 29 53.45 V C57
2021-12-27 03:23:53 s 1 -162310.98 0 +251421.93 2400.0 C57
2021-12-27 03:33:53 S 07 31 25.044 +24 30 19.15 V C57
2021-12-27 03:33:53 s 1 -162509.82 2 +250877.55 5090.0 C57
2021-12-27 03:43:53 S 07 31 23.518 +24 30 34.45 V C57
2021-12-27 03:43:53 s 1 -162707.86 5 +250331.95 4020.0 C57
2021-12-27 03:53:53 S 07 31 21.463 +24 31 03.14 V C57
2021-12-27 03:53:53 s 1 -162905.10 7 +249785.13 9160.0 C57
2021-12-27 04:03:53 S 07 31 19.942 +24 31 30.25 V C57
2021-12-27 04:03:53 s 1 -163101.54 4 +249237.08 510.0 C57