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
2021-12-03 10:33:39 C 08 58 24.06 -04 15 09.8 V G96
2021-12-03 10:41:07 C 08 58 23.05 -04 14 46.2 V G96
2021-12-05 09:11:37 C 08 52 17.08 -01 46 06.9 V 703
2021-12-05 09:19:16 C 08 52 16.03 -01 45 42.0 V 703
2021-12-05 09:26:54 C 08 52 14.97 -01 45 17.5 V 703
2021-12-05 09:34:34 C 08 52 13.92 -01 44 52.8 V 703
2021-12-09 08:53:20 C 08 38 56.30 +03 26 06.4 V 703
2021-12-09 09:00:54 C 08 38 55.17 +03 26 31.6 V 703
2021-12-09 09:08:27 C 08 38 54.02 +03 26 56.4 V 703
2021-12-09 09:16:00 C 08 38 52.88 +03 27 21.1 V 703
2021-12-12 10:23:54 S 08 28 22.757 +07 26 29.40 V C57
2021-12-12 10:23:54 s 1 -123517.89 4 +319348.16 1260.0 C57
2021-12-12 10:33:54 S 08 28 21.166 +07 26 56.83 V C57
2021-12-12 10:33:54 s 1 -123800.17 0 +318971.36 1420.0 C57
2021-12-12 10:53:54 S 08 28 17.760 +07 28 02.89 V C57
2021-12-12 10:53:54 s 1 -124363.45 6 +318214.50 5720.0 C57
2021-12-12 11:03:54 S 08 28 16.243 +07 28 35.94 V C57
2021-12-12 11:03:54 s 1 -124644.46 3 +317834.43 9840.0 C57
2021-12-12 11:13:54 S 08 28 14.534 +07 29 09.10 V C57
2021-12-12 11:13:54 s 1 -124925.04 3 +317453.26 1920.0 C57
2021-12-12 11:23:54 S 08 28 13.042 +07 29 36.78 V C57
2021-12-12 11:23:54 s 1 -125205.19 4 +317071.01 1970.0 C57
2021-12-12 11:33:54 S 08 28 11.203 +07 30 18.36 V C57
2021-12-12 11:33:54 s 1 -125484.91 5 +316687.66 9960.0 C57
2021-12-12 11:43:54 S 08 28 09.590 +07 30 46.04 V C57
2021-12-12 11:43:54 s 1 -125764.20 4 +316303.22 5900.0 C57
2021-12-12 11:53:54 S 08 28 08.062 +07 31 15.28 V C57
2021-12-12 11:53:54 s 1 -126043.05 9 +315917.68 9770.0 C57
2021-12-12 12:03:54 S 08 28 06.451 +07 31 50.88 V C57
2021-12-12 12:03:54 s 1 -126321.47 7 +315531.05 1580.0 C57
2021-12-12 12:13:54 S 08 28 04.726 +07 32 21.66 V C57
2021-12-12 12:13:54 s 1 -126599.45 8 +315143.32 1300.0 C57
2021-12-12 12:17:41 C 08 27 44.01 +07 33 29.6 V T08
2021-12-12 12:22:19 C 08 27 43.27 +07 33 44.9 V T08
2021-12-12 12:23:54 S 08 28 02.892 +07 32 56.15 V C57
2021-12-12 12:23:54 s 1 -126877.00 0 +314754.49 8930.0 C57
2021-12-12 12:26:18 C 08 27 42.65 +07 33 57.9 V T08
2021-12-12 12:33:54 S 08 28 01.282 +07 33 28.91 V C57
2021-12-12 12:33:54 s 1 -127154.09 9 +314364.56 4470.0 C57
2021-12-12 12:43:54 S 08 27 59.580 +07 34 01.78 V C57
2021-12-12 12:43:54 s 1 -127430.75 5 +313973.54 7900.0 C57
2021-12-12 12:53:54 S 08 27 58.054 +07 34 31.26 V C57
2021-12-12 12:53:54 s 1 -127706.96 6 +313581.41 9220.0 C57
2021-12-12 12:54:25 C 08 27 38.20 +07 35 29.4 V T08
2021-12-12 13:03:54 S 08 27 56.460 +07 35 05.24 V C57
2021-12-12 13:03:54 s 1 -127982.72 9 +313188.18 8420.0 C57
2021-12-12 13:13:54 S 08 27 54.804 +07 35 41.14 V C57
2021-12-12 13:13:54 s 1 -128258.04 4 +312793.85 5480.0 C57
2021-12-12 13:23:54 S 08 27 53.285 +07 36 10.69 V C57
2021-12-12 13:23:54 s 1 -128532.90 7 +312398.41 410.0 C57