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 21:23:54 S 07 52 49.435 +19 10 35.94 V C57
2021-12-21 21:23:54 s 1 +81178.438 0 +362279.14 4480.0 C57
2021-12-21 21:33:54 S 07 52 47.695 +19 10 58.08 V C57
2021-12-21 21:33:54 s 1 +80847.504 0 +362504.12 4770.0 C57
2021-12-21 21:43:54 S 07 52 46.066 +19 11 29.08 V C57
2021-12-21 21:43:54 s 1 +80516.338 0 +362728.09 4330.0 C57
2021-12-21 21:53:54 S 07 52 44.198 +19 11 59.86 V C57
2021-12-21 21:53:54 s 1 +80184.939 0 +362951.05 3160.0 C57
2021-12-21 22:03:54 S 07 52 42.802 +19 12 27.11 V C57
2021-12-21 22:03:54 s 1 +79853.309 0 +363173.00 1280.0 C57
2021-12-21 22:13:54 S 07 52 41.011 +19 12 51.84 V C57
2021-12-21 22:13:54 s 1 +79521.449 0 +363393.93 8670.0 C57
2021-12-21 22:23:54 S 07 52 39.262 +19 13 21.86 V C57
2021-12-21 22:23:54 s 1 +79189.360 0 +363613.86 5350.0 C57
2021-12-21 22:33:54 S 07 52 37.601 +19 13 50.23 V C57
2021-12-21 22:33:54 s 1 +78857.045 0 +363832.77 1330.0 C57
2021-12-21 22:43:54 S 07 52 35.902 +19 14 22.42 V C57
2021-12-21 22:43:54 s 1 +78524.503 0 +364050.68 6610.0 C57
2021-12-21 22:53:54 S 07 52 34.394 +19 14 45.06 V C57
2021-12-21 22:53:54 s 1 +78191.736 0 +364267.58 1190.0 C57
2021-12-21 23:03:54 S 07 52 33.120 +19 15 15.05 V C57
2021-12-21 23:03:54 s 1 +77858.745 0 +364483.46 5070.0 C57
2021-12-21 23:33:54 S 07 52 27.574 +19 16 38.78 V C57
2021-12-21 23:33:54 s 1 +76858.440 0 +365125.08 2630.0 C57
2021-12-21 23:43:54 S 07 52 25.793 +19 17 05.03 V C57
2021-12-21 23:43:54 s 1 +76524.565 0 +365336.93 3800.0 C57
2021-12-21 23:53:54 S 07 52 24.134 +19 17 32.68 V C57
2021-12-21 23:53:54 s 1 +76190.472 0 +365547.78 4300.0 C57
2021-12-22 00:03:54 S 07 52 22.457 +19 18 00.83 V C57
2021-12-22 00:03:54 s 1 +75856.162 0 +365757.63 4140.0 C57
2021-12-22 00:13:54 S 07 52 21.067 +19 18 30.17 V C57
2021-12-22 00:13:54 s 1 +75521.637 0 +365966.47 3310.0 C57
2021-12-22 00:33:54 S 07 52 17.230 +19 19 26.62 V C57
2021-12-22 00:33:54 s 1 +74851.942 0 +366381.13 9710.0 C57
2021-12-22 00:53:54 S 07 52 14.057 +19 20 19.03 V C57
2021-12-22 00:53:54 s 1 +74181.399 0 +366791.78 3530.0 C57
2021-12-22 01:03:54 S 07 52 12.288 +19 20 46.07 V C57
2021-12-22 01:03:54 s 1 +73845.812 0 +366995.60 9490.0 C57
2021-12-22 01:13:54 S 07 52 10.752 +19 21 15.44 V C57
2021-12-22 01:13:54 s 1 +73510.015 0 +367198.42 4820.0 C57
2021-12-22 01:33:54 S 07 52 07.517 +19 22 08.98 V C57
2021-12-22 01:33:54 s 1 +72837.800 0 +367601.04 3600.0 C57
2021-12-22 01:53:54 S 07 52 04.241 +19 23 08.27 V C57
2021-12-22 01:53:54 s 1 +72164.764 0 +367999.66 9910.0 C57
2021-12-22 02:03:54 S 07 52 02.542 +19 23 33.68 V C57
2021-12-22 02:03:54 s 1 +71827.940 0 +368197.47 2160.0 C57
2021-12-22 02:23:54 S 07 51 59.105 +19 24 28.19 V C57
2021-12-22 02:23:54 s 1 +71153.687 0 +368590.09 4840.0 C57
2021-12-22 02:33:54 S 07 51 57.276 +19 24 59.04 V C57
2021-12-22 02:33:54 s 1 +70816.260 0 +368784.90 5290.0 C57