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 12:03:54 S 07 54 23.047 +18 44 22.96 V C57
2021-12-21 12:03:54 s 1 +99300.186 0 +348047.94 5720.0 C57
2021-12-21 12:13:54 S 07 54 21.461 +18 44 52.40 V C57
2021-12-21 12:13:54 s 1 +98984.315 0 +348330.48 5110.0 C57
2021-12-21 12:23:54 S 07 54 19.817 +18 45 25.70 V C57
2021-12-21 12:23:54 s 1 +98668.139 0 +348611.97 3480.0 C57
2021-12-21 12:33:54 S 07 54 18.091 +18 45 43.81 V C57
2021-12-21 12:33:54 s 1 +98351.659 0 +348892.42 820.0 C57
2021-12-21 12:43:54 S 07 54 16.397 +18 46 20.17 V C57
2021-12-21 12:43:54 s 1 +98034.877 0 +349171.83 7160.0 C57
2021-12-21 12:53:54 S 07 54 14.542 +18 46 47.50 V C57
2021-12-21 12:53:54 s 1 +97717.794 0 +349450.20 2480.0 C57
2021-12-21 13:03:54 S 07 54 13.128 +18 47 17.23 V C57
2021-12-21 13:03:54 s 1 +97400.411 0 +349727.53 6800.0 C57
2021-12-21 13:13:54 S 07 54 11.446 +18 47 43.15 V C57
2021-12-21 13:13:54 s 1 +97082.730 0 +350003.81 130.0 C57
2021-12-21 13:33:54 S 07 54 07.990 +18 48 37.73 V C57
2021-12-21 13:33:54 s 1 +96446.479 0 +350553.26 3820.0 C57
2021-12-21 13:53:54 S 07 54 04.740 +18 49 36.52 V C57
2021-12-21 13:53:54 s 1 +95809.051 0 +351098.56 3580.0 C57
2021-12-21 14:03:54 S 07 54 03.154 +18 50 01.00 V C57
2021-12-21 14:03:54 s 1 +95489.899 0 +351369.65 2010.0 C57
2021-12-21 14:13:54 S 07 54 00.862 +18 50 41.14 V C57
2021-12-21 14:13:54 s 1 +95170.457 0 +351639.71 9470.0 C57
2021-12-21 14:23:54 S 07 53 59.532 +18 51 05.94 V C57
2021-12-21 14:23:54 s 1 +94850.727 0 +351908.72 5980.0 C57
2021-12-21 14:33:54 S 07 53 58.325 +18 51 25.52 V C57
2021-12-21 14:33:54 s 1 +94530.709 0 +352176.71 1530.0 C57
2021-12-21 14:43:54 S 07 53 56.326 +18 51 55.37 V C57
2021-12-21 14:43:54 s 1 +94210.404 0 +352443.65 6140.0 C57
2021-12-21 14:53:54 S 07 53 54.919 +18 52 23.74 V C57
2021-12-21 14:53:54 s 1 +93889.815 0 +352709.57 9800.0 C57
2021-12-21 15:03:54 S 07 53 52.891 +18 52 53.40 V C57
2021-12-21 15:03:54 s 1 +93568.943 0 +352974.44 2530.0 C57
2021-12-21 15:13:54 S 07 53 51.173 +18 53 21.05 V C57
2021-12-21 15:13:54 s 1 +93247.788 0 +353238.29 4320.0 C57
2021-12-21 15:23:54 S 07 53 49.582 +18 53 44.74 V C57
2021-12-21 15:23:54 s 1 +92926.352 0 +353501.10 5200.0 C57
2021-12-21 15:33:54 S 07 53 48.298 +18 54 16.24 V C57
2021-12-21 15:33:54 s 1 +92604.637 0 +353762.88 5150.0 C57
2021-12-21 15:43:54 S 07 53 46.102 +18 54 47.38 V C57
2021-12-21 15:43:54 s 1 +92282.644 0 +354023.63 4180.0 C57
2021-12-21 15:53:54 S 07 53 44.818 +18 55 14.05 V C57
2021-12-21 15:53:54 s 1 +91960.374 0 +354283.34 2310.0 C57
2021-12-21 16:23:54 S 07 53 39.600 +18 56 40.06 V C57
2021-12-21 16:23:54 s 1 +90991.914 0 +355056.31 1290.0 C57
2021-12-21 16:33:54 S 07 53 37.973 +18 57 02.92 V C57
2021-12-21 16:33:54 s 1 +90668.549 0 +355311.91 5830.0 C57
2021-12-21 16:43:54 S 07 53 36.401 +18 57 35.32 V C57
2021-12-21 16:43:54 s 1 +90344.914 0 +355566.48 9490.0 C57