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
2021-12-28 09:43:53 s 1 -180846.20 5 +131024.50 7530.0 C57
2021-12-28 09:53:53 S 07 26 24.744 +25 37 02.50 V C57
2021-12-28 09:53:53 s 1 -180816.13 3 +130238.67 6380.0 C57
2021-12-28 10:03:53 S 07 26 23.110 +25 37 22.48 V C57
2021-12-28 10:03:53 s 1 -180784.11 5 +129451.45 6420.0 C57
2021-12-28 10:13:53 S 07 26 21.672 +25 37 42.96 V C57
2021-12-28 10:13:53 s 1 -180750.14 0 +128662.82 7620.0 C57
2021-12-28 10:23:53 S 07 26 19.759 +25 38 02.54 V C57
2021-12-28 10:23:53 s 1 -180714.19 7 +127872.79 9930.0 C57
2021-12-28 10:33:53 S 07 26 18.346 +25 38 23.28 V C57
2021-12-28 10:33:53 s 1 -180676.27 4 +127081.37 3290.0 C57
2021-12-28 10:43:53 S 07 26 16.666 +25 38 46.18 V C57
2021-12-28 10:43:53 s 1 -180636.35 9 +126288.54 7660.0 C57
2021-12-28 10:53:53 S 07 26 15.288 +25 39 05.08 V C57
2021-12-28 10:53:53 s 1 -180594.44 2 +125494.32 2980.0 C57
2021-12-28 11:03:53 S 07 26 13.589 +25 39 29.27 V C57
2021-12-28 11:03:53 s 1 -180550.51 1 +124698.70 9210.0 C57
2021-12-28 11:13:53 S 07 26 12.406 +25 39 43.99 V C57
2021-12-28 11:13:53 s 1 -180504.55 4 +123901.68 6290.0 C57
2021-12-28 11:23:53 S 07 26 10.260 +25 40 16.86 V C57
2021-12-28 11:23:53 s 1 -180456.55 9 +123103.26 4180.0 C57
2021-12-28 11:33:53 S 07 26 08.467 +25 40 33.46 V C57
2021-12-28 11:33:53 s 1 -180406.51 4 +122303.45 2820.0 C57
2021-12-28 11:43:53 S 07 26 07.224 +25 40 49.51 V C57
2021-12-28 11:43:53 s 1 -180354.40 7 +121502.24 2150.0 C57
2021-12-28 11:53:53 S 07 26 05.645 +25 41 12.62 V C57
2021-12-28 11:53:53 s 1 -180300.22 7 +120699.64 2140.0 C57
2021-12-28 12:03:53 S 07 26 04.164 +25 41 36.10 V C57
2021-12-28 12:03:53 s 1 -180243.96 1 +119895.64 2730.0 C57
2021-12-28 12:13:53 S 07 26 02.453 +25 41 54.67 V C57
2021-12-28 12:13:53 s 1 -180185.59 6 +119090.25 3850.0 C57
2021-12-28 12:23:53 S 07 26 00.473 +25 42 18.90 V C57
2021-12-28 12:23:53 s 1 -180125.12 1 +118283.46 5470.0 C57
2021-12-28 12:33:53 S 07 25 58.901 +25 42 43.60 V C57
2021-12-28 12:33:53 s 1 -180062.52 3 +117475.28 7520.0 C57
2021-12-28 12:43:53 S 07 25 57.449 +25 43 02.96 V C57
2021-12-28 12:43:53 s 1 -179997.78 9 +116665.71 9950.0 C57
2021-12-28 12:53:53 S 07 25 55.692 +25 43 24.60 V C57
2021-12-28 12:53:53 s 1 -179930.90 7 +115854.75 2710.0 C57
2021-12-28 13:03:53 S 07 25 54.468 +25 43 41.70 V C57
2021-12-28 13:03:53 s 1 -179861.86 4 +115042.39 5740.0 C57
2021-12-28 13:13:53 S 07 25 52.610 +25 44 03.05 V C57
2021-12-28 13:13:53 s 1 -179790.64 7 +114228.65 8980.0 C57
2021-12-28 13:23:53 S 07 25 51.017 +25 44 27.64 V C57
2021-12-28 13:23:53 s 1 -179717.24 3 +113413.52 2390.0 C57
2021-12-28 13:33:53 S 07 25 49.087 +25 44 46.61 V C57
2021-12-28 13:33:53 s 1 -179641.63 8 +112597.00 5900.0 C57
2021-12-28 13:43:53 S 07 25 47.882 +25 45 04.68 V C57
2021-12-28 13:43:53 s 1 -179563.82 1 +111779.10 9450.0 C57
2021-12-28 13:53:53 S 07 25 46.145 +25 45 30.92 V C57