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 14:03:53 s 1 -144094.10 8 +291105.57 5030.0 C57
2021-12-26 14:13:53 S 07 33 39.485 +23 59 43.62 V C57
2021-12-26 14:13:53 s 1 -144346.99 7 +290655.55 5400.0 C57
2021-12-26 14:23:53 S 07 33 37.805 +24 00 03.42 V C57
2021-12-26 14:23:53 s 1 -144599.31 5 +290204.39 3010.0 C57
2021-12-26 14:33:53 S 07 33 35.914 +24 00 24.62 V C57
2021-12-26 14:33:53 s 1 -144851.06 0 +289752.09 7860.0 C57
2021-12-26 14:43:53 S 07 33 34.142 +24 00 51.12 V C57
2021-12-26 14:43:53 s 1 -145102.23 0 +289298.65 9940.0 C57
2021-12-26 14:53:53 S 07 33 32.621 +24 01 16.07 V C57
2021-12-26 14:53:53 s 1 -145352.82 3 +288844.06 9230.0 C57
2021-12-26 15:03:53 S 07 33 31.111 +24 01 36.23 V C57
2021-12-26 15:03:53 s 1 -145602.83 5 +288388.34 5720.0 C57
2021-12-26 15:13:53 S 07 33 29.227 +24 02 03.52 V C57
2021-12-26 15:13:53 s 1 -145852.26 5 +287931.47 9410.0 C57
2021-12-26 15:23:53 S 07 33 27.782 +24 02 26.45 V C57
2021-12-26 15:23:53 s 1 -146101.11 1 +287473.45 280.0 C57
2021-12-26 15:33:53 S 07 33 25.886 +24 02 44.88 V C57
2021-12-26 15:33:53 s 1 -146349.36 9 +287014.29 8330.0 C57
2021-12-26 15:43:53 S 07 33 24.286 +24 03 06.80 V C57
2021-12-26 15:43:53 s 1 -146597.03 8 +286553.98 3530.0 C57
2021-12-26 16:03:53 S 07 33 20.918 +24 04 00.48 V C57
2021-12-26 16:03:53 s 1 -147090.59 7 +285629.93 5390.0 C57
2021-12-26 16:13:53 S 07 33 19.181 +24 04 18.91 V C57
2021-12-26 16:13:53 s 1 -147336.48 2 +285166.17 2010.0 C57
2021-12-26 16:23:53 S 07 33 17.647 +24 04 42.64 V C57
2021-12-26 16:23:53 s 1 -147581.76 8 +284701.27 5750.0 C57
2021-12-26 16:33:53 S 07 33 15.823 +24 05 06.50 V C57
2021-12-26 16:33:53 s 1 -147826.45 2 +284235.21 6600.0 C57
2021-12-26 16:43:53 S 07 33 14.323 +24 05 24.97 V C57
2021-12-26 16:43:53 s 1 -148070.53 2 +283768.00 4540.0 C57
2021-12-26 16:53:53 S 07 33 12.516 +24 05 51.90 V C57
2021-12-26 16:53:53 s 1 -148314.00 4 +283299.64 9570.0 C57
2021-12-26 17:03:53 S 07 33 10.802 +24 06 13.90 V C57
2021-12-26 17:03:53 s 1 -148556.86 8 +282830.13 1670.0 C57
2021-12-26 17:23:53 S 07 33 07.366 +24 07 00.12 V C57
2021-12-26 17:23:53 s 1 -149040.75 6 +281887.63 7050.0 C57
2021-12-26 17:33:53 S 07 33 05.971 +24 07 24.96 V C57
2021-12-26 17:33:53 s 1 -149281.77 6 +281414.64 310.0 C57
2021-12-26 17:36:19 C 07 33 10.75 +24 04 20.7 V D29
2021-12-26 17:43:53 S 07 33 03.977 +24 07 50.70 V C57
2021-12-26 17:43:53 s 1 -149522.17 7 +280940.49 590.0 C57
2021-12-26 17:53:53 S 07 33 02.086 +24 08 07.73 V C57
2021-12-26 17:53:53 s 1 -149761.95 5 +280465.19 7890.0 C57
2021-12-26 18:25:57 C 07 33 02.67 +24 06 17.6 V D29
2021-12-26 18:33:53 S 07 32 55.759 +24 09 44.14 V C57
2021-12-26 18:33:53 s 1 -150714.79 4 +278552.35 7010.0 C57
2021-12-26 18:43:53 S 07 32 54.086 +24 10 05.23 V C57
2021-12-26 18:43:53 s 1 -150951.42 3 +278071.24 9220.0 C57
2021-12-26 19:03:53 S 07 32 50.779 +24 10 52.14 V C57