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
2021-12-27 13:03:53 S 07 29 50.124 +24 51 34.70 V C57
2021-12-27 13:03:53 s 1 -172409.64 0 +217788.78 5270.0 C57
2021-12-27 13:13:53 S 07 29 48.269 +24 51 59.58 V C57
2021-12-27 13:13:53 s 1 -172555.86 0 +217171.46 1530.0 C57
2021-12-27 13:23:53 S 07 29 46.416 +24 52 19.56 V C57
2021-12-27 13:23:53 s 1 -172701.04 8 +216552.85 2980.0 C57
2021-12-27 13:43:53 S 07 29 43.450 +24 53 06.00 V C57
2021-12-27 13:43:53 s 1 -172988.30 3 +215311.74 1380.0 C57
2021-12-27 13:53:53 S 07 29 41.743 +24 53 31.02 V C57
2021-12-27 13:53:53 s 1 -173130.36 2 +214689.24 8280.0 C57
2021-12-27 14:03:53 S 07 29 40.243 +24 53 48.26 V C57
2021-12-27 14:03:53 s 1 -173271.36 9 +214065.44 300.0 C57
2021-12-27 14:13:53 S 07 29 38.333 +24 54 09.00 V C57
2021-12-27 14:13:53 s 1 -173411.31 8 +213440.34 7400.0 C57
2021-12-27 14:23:53 S 07 29 36.818 +24 54 31.21 V C57
2021-12-27 14:23:53 s 1 -173550.20 4 +212813.94 9570.0 C57
2021-12-27 14:33:53 S 07 29 34.932 +24 54 57.71 V C57
2021-12-27 14:33:53 s 1 -173688.02 4 +212186.24 6790.0 C57
2021-12-27 14:53:53 S 07 29 31.651 +24 55 39.22 V C57
2021-12-27 14:53:53 s 1 -173960.44 1 +210926.92 6250.0 C57
2021-12-27 15:03:53 S 07 29 30.046 +24 56 01.03 V C57
2021-12-27 15:03:53 s 1 -174095.02 9 +210295.31 8470.0 C57
2021-12-27 15:13:53 S 07 29 28.284 +24 56 26.81 V C57
2021-12-27 15:13:53 s 1 -174228.52 9 +209662.39 5630.0 C57
2021-12-27 15:23:53 S 07 29 26.515 +24 56 46.75 V C57
2021-12-27 15:23:53 s 1 -174360.93 7 +209028.16 7730.0 C57
2021-12-27 15:53:53 S 07 29 21.665 +24 57 54.40 V C57
2021-12-27 15:53:53 s 1 -174751.55 4 +207117.60 3400.0 C57
2021-12-27 16:03:53 S 07 29 20.081 +24 58 17.83 V C57
2021-12-27 16:03:53 s 1 -174879.54 1 +206478.13 5000.0 C57
2021-12-27 16:13:53 S 07 29 18.698 +24 58 34.61 V C57
2021-12-27 16:13:53 s 1 -175006.40 8 +205837.34 1420.0 C57
2021-12-27 16:23:53 S 07 29 16.954 +24 59 01.28 V C57
2021-12-27 16:23:53 s 1 -175132.15 3 +205195.24 2640.0 C57
2021-12-27 16:33:53 S 07 29 15.533 +24 59 22.27 V C57
2021-12-27 16:33:53 s 1 -175256.76 7 +204551.81 8620.0 C57
2021-12-27 16:43:53 S 07 29 13.423 +24 59 45.53 V C57
2021-12-27 16:43:53 s 1 -175380.24 8 +203907.08 9350.0 C57
2021-12-27 16:53:53 S 07 29 11.887 +25 00 05.58 V C57
2021-12-27 16:53:53 s 1 -175502.58 9 +203261.02 4810.0 C57
2021-12-27 17:03:53 S 07 29 10.310 +25 00 28.98 V C57
2021-12-27 17:03:53 s 1 -175623.78 4 +202613.64 4970.0 C57
2021-12-27 17:13:53 S 07 29 08.369 +25 00 50.76 V C57
2021-12-27 17:13:53 s 1 -175743.82 9 +201964.94 9800.0 C57
2021-12-27 17:32:21 C 07 29 23.83 +24 59 53.5 V D29
2021-12-27 17:33:53 S 07 29 05.114 +25 01 33.82 V C57
2021-12-27 17:33:53 s 1 -175980.44 4 +200663.57 3390.0 C57
2021-12-27 17:43:53 S 07 29 03.629 +25 01 57.72 V C57
2021-12-27 17:43:53 s 1 -176097.00 3 +200010.90 2110.0 C57
2021-12-27 17:52:43 C 07 29 20.53 +25 00 39.8 V D29