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
2021-12-21 07:23:54 S 07 55 09.722 +18 31 15.28 V C57
2021-12-21 07:23:54 s 1 +108014.96 8 +339710.45 3500.0 C57
2021-12-21 07:33:54 S 07 55 07.963 +18 31 40.62 V C57
2021-12-21 07:33:54 s 1 +107708.21 7 +340022.48 3930.0 C57
2021-12-21 07:43:54 S 07 55 06.295 +18 32 11.51 V C57
2021-12-21 07:43:54 s 1 +107401.12 1 +340333.45 3170.0 C57
2021-12-21 07:53:54 S 07 55 04.711 +18 32 39.01 V C57
2021-12-21 07:53:54 s 1 +107093.68 1 +340643.36 1220.0 C57
2021-12-21 08:03:54 S 07 55 02.986 +18 33 08.60 V C57
2021-12-21 08:03:54 s 1 +106785.89 8 +340952.20 8100.0 C57
2021-12-21 08:13:54 S 07 55 01.505 +18 33 32.62 V C57
2021-12-21 08:13:54 s 1 +106477.77 4 +341259.98 3810.0 C57
2021-12-21 08:23:54 S 07 54 59.638 +18 34 02.93 V C57
2021-12-21 08:23:54 s 1 +106169.31 1 +341566.71 8360.0 C57
2021-12-21 08:33:54 S 07 54 58.126 +18 34 34.68 V C57
2021-12-21 08:33:54 s 1 +105860.51 0 +341872.37 1740.0 C57
2021-12-21 08:43:54 S 07 54 56.309 +18 35 02.58 V C57
2021-12-21 08:43:54 s 1 +105551.37 2 +342176.98 3980.0 C57
2021-12-21 08:53:54 S 07 54 54.842 +18 35 27.89 V C57
2021-12-21 08:53:54 s 1 +105241.89 9 +342480.53 5070.0 C57
2021-12-21 09:03:54 S 07 54 53.018 +18 35 57.44 V C57
2021-12-21 09:03:54 s 1 +104932.09 3 +342783.03 5010.0 C57
2021-12-21 09:13:54 S 07 54 51.461 +18 36 23.94 V C57
2021-12-21 09:13:54 s 1 +104621.95 5 +343084.46 3820.0 C57
2021-12-21 09:23:54 S 07 54 49.680 +18 36 52.02 V C57
2021-12-21 09:23:54 s 1 +104311.48 6 +343384.84 1510.0 C57
2021-12-21 09:33:54 S 07 54 47.971 +18 37 20.64 V C57
2021-12-21 09:33:54 s 1 +104000.68 7 +343684.17 8070.0 C57
2021-12-21 09:53:54 S 07 54 44.657 +18 38 15.22 V C57
2021-12-21 09:53:54 s 1 +103378.10 9 +344279.66 7840.0 C57
2021-12-21 10:03:54 S 07 54 43.049 +18 38 49.16 V C57
2021-12-21 10:03:54 s 1 +103066.33 2 +344575.83 1070.0 C57
2021-12-21 10:13:54 S 07 54 41.237 +18 39 18.18 V C57
2021-12-21 10:13:54 s 1 +102754.23 1 +344870.94 3200.0 C57
2021-12-21 10:33:54 S 07 54 37.990 +18 40 09.48 V C57
2021-12-21 10:33:54 s 1 +102129.06 5 +345458.02 4180.0 C57
2021-12-21 10:43:54 S 07 54 36.468 +18 40 41.05 V C57
2021-12-21 10:43:54 s 1 +101816.00 3 +345749.98 3050.0 C57
2021-12-21 10:53:54 S 07 54 34.872 +18 41 08.77 V C57
2021-12-21 10:53:54 s 1 +101502.62 3 +346040.89 840.0 C57
2021-12-21 11:03:54 S 07 54 33.142 +18 41 39.08 V C57
2021-12-21 11:03:54 s 1 +101188.92 7 +346330.75 7560.0 C57
2021-12-21 11:13:54 S 07 54 31.502 +18 42 03.64 V C57
2021-12-21 11:13:54 s 1 +100874.91 5 +346619.57 3210.0 C57
2021-12-21 11:33:54 S 07 54 28.063 +18 42 59.87 V C57
2021-12-21 11:33:54 s 1 +100245.95 4 +347194.05 1350.0 C57
2021-12-21 11:43:54 S 07 54 26.342 +18 43 28.78 V C57
2021-12-21 11:43:54 s 1 +99931.007 0 +347479.73 3850.0 C57
2021-12-21 11:53:54 S 07 54 24.598 +18 43 58.44 V C57
2021-12-21 11:53:54 s 1 +99615.750 0 +347764.36 5310.0 C57