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 08:13:54 S 08 24 46.975 +08 36 59.90 V C57
2021-12-13 08:13:54 s 1 -156146.28 1 +260356.05 8870.0 C57
2021-12-13 08:23:54 S 08 24 45.420 +08 37 34.32 V C57
2021-12-13 08:23:54 s 1 -156354.69 2 +259827.95 5660.0 C57
2021-12-13 08:33:54 S 08 24 43.596 +08 38 02.04 V C57
2021-12-13 08:33:54 s 1 -156562.36 2 +259298.62 9070.0 C57
2021-12-13 08:43:54 S 08 24 42.283 +08 38 36.78 V C57
2021-12-13 08:43:54 s 1 -156769.28 8 +258768.05 9080.0 C57
2021-12-13 08:53:54 S 08 24 40.296 +08 39 06.88 V C57
2021-12-13 08:53:54 s 1 -156975.46 7 +258236.26 5690.0 C57
2021-12-13 09:03:54 S 08 24 38.806 +08 39 42.52 V C57
2021-12-13 09:03:54 s 1 -157180.89 6 +257703.22 8890.0 C57
2021-12-13 09:13:54 S 08 24 37.090 +08 40 14.84 V C57
2021-12-13 09:13:54 s 1 -157385.57 1 +257168.95 8640.0 C57
2021-12-13 09:23:54 S 08 24 35.239 +08 40 47.64 V C57
2021-12-13 09:23:54 s 1 -157589.48 8 +256633.45 4950.0 C57
2021-12-13 09:33:54 S 08 24 33.494 +08 41 20.00 V C57
2021-12-13 09:33:54 s 1 -157792.64 5 +256096.70 7800.0 C57
2021-12-13 09:43:54 S 08 24 31.930 +08 41 47.51 V C57
2021-12-13 09:43:54 s 1 -157995.03 8 +255558.71 7170.0 C57
2021-12-13 09:53:54 S 08 24 30.559 +08 42 19.26 V C57
2021-12-13 09:53:54 s 1 -158196.66 3 +255019.48 3040.0 C57
2021-12-13 10:03:54 S 08 24 28.786 +08 42 54.86 V C57
2021-12-13 10:03:54 s 1 -158397.51 8 +254479.01 5410.0 C57
2021-12-13 10:13:54 S 08 24 26.928 +08 43 26.90 V C57
2021-12-13 10:13:54 s 1 -158597.59 8 +253937.29 4260.0 C57
2021-12-13 10:23:54 S 08 24 25.486 +08 43 58.80 V C57
2021-12-13 10:23:54 s 1 -158796.90 1 +253394.33 9580.0 C57
2021-12-13 10:33:54 S 08 24 23.544 +08 44 31.38 V C57
2021-12-13 10:33:54 s 1 -158995.42 2 +252850.12 1340.0 C57
2021-12-13 10:43:54 S 08 24 22.152 +08 45 02.52 V C57
2021-12-13 10:43:54 s 1 -159193.15 9 +252304.66 9540.0 C57
2021-12-13 10:53:54 S 08 24 20.597 +08 45 31.39 V C57
2021-12-13 10:53:54 s 1 -159390.10 7 +251757.95 4150.0 C57
2021-12-13 11:03:54 S 08 24 19.015 +08 46 05.59 V C57
2021-12-13 11:03:54 s 1 -159586.26 4 +251209.99 5170.0 C57
2021-12-13 11:13:54 S 08 24 17.076 +08 46 35.87 V C57
2021-12-13 11:13:54 s 1 -159781.62 5 +250660.77 2580.0 C57
2021-12-13 11:23:54 S 08 24 15.624 +08 47 08.92 V C57
2021-12-13 11:23:54 s 1 -159976.18 7 +250110.30 6360.0 C57
2021-12-13 11:33:54 S 08 24 13.891 +08 47 42.43 V C57
2021-12-13 11:33:54 s 1 -160169.94 6 +249558.58 6500.0 C57
2021-12-13 11:43:54 S 08 24 12.252 +08 48 15.88 V C57
2021-12-13 11:43:54 s 1 -160362.89 9 +249005.60 2980.0 C57
2021-12-13 11:53:54 S 08 24 10.406 +08 48 43.78 V C57
2021-12-13 11:53:54 s 1 -160555.04 2 +248451.36 5790.0 C57
2021-12-13 12:13:54 S 08 24 07.390 +08 49 48.54 V C57
2021-12-13 12:13:54 s 1 -160936.88 4 +247339.11 330.0 C57
2021-12-13 12:23:54 S 08 24 05.330 +08 50 22.99 V C57
2021-12-13 12:23:54 s 1 -161126.57 5 +246781.09 2030.0 C57