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
2021-12-29 14:03:53 s 1 -134610.77 0 -19707.355 1330.0 C57
2021-12-29 14:13:53 S 07 21 59.306 +26 35 53.92 V C57
2021-12-29 14:13:53 s 1 -133980.31 2 -20641.976 2720.0 C57
2021-12-29 14:23:53 S 07 21 58.164 +26 36 19.08 V C57
2021-12-29 14:23:53 s 1 -133343.81 5 -21575.673 8280.0 C57
2021-12-29 14:33:53 S 07 21 56.642 +26 36 37.66 V C57
2021-12-29 14:33:53 s 1 -132701.23 7 -22508.392 7850.0 C57
2021-12-29 14:43:53 S 07 21 54.953 +26 37 00.26 V C57
2021-12-29 14:43:53 s 1 -132052.53 8 -23440.079 1260.0 C57
2021-12-29 14:53:53 S 07 21 53.496 +26 37 15.82 V C57
2021-12-29 14:53:53 s 1 -131397.67 8 -24370.678 8350.0 C57
2021-12-29 15:03:53 S 07 21 51.989 +26 37 36.80 V C57
2021-12-29 15:03:53 s 1 -130736.61 4 -25300.133 8980.0 C57
2021-12-29 15:13:53 S 07 21 50.702 +26 37 55.52 V C57
2021-12-29 15:13:53 s 1 -130069.30 7 -26228.386 2970.0 C57
2021-12-29 15:23:53 S 07 21 49.121 +26 38 18.92 V C57
2021-12-29 15:23:53 s 1 -129395.71 6 -27155.378 160.0 C57
2021-12-29 15:33:53 S 07 21 47.623 +26 38 32.57 V C57
2021-12-29 15:33:53 s 1 -128715.79 9 -28081.049 410.0 C57
2021-12-29 15:43:53 S 07 21 46.061 +26 39 02.52 V C57
2021-12-29 15:43:53 s 1 -128029.51 5 -29005.337 3550.0 C57
2021-12-29 15:53:53 S 07 21 44.587 +26 39 20.16 V C57
2021-12-29 15:53:53 s 1 -127336.82 5 -29928.179 9420.0 C57
2021-12-29 16:03:53 S 07 21 43.085 +26 39 41.65 V C57
2021-12-29 16:03:53 s 1 -126637.68 7 -30849.512 7860.0 C57
2021-12-29 16:13:53 S 07 21 41.626 +26 40 02.78 V C57
2021-12-29 16:13:53 s 1 -125932.06 0 -31769.271 8730.0 C57
2021-12-29 16:23:53 S 07 21 40.267 +26 40 21.79 V C57
2021-12-29 16:23:53 s 1 -125219.90 3 -32687.389 1850.0 C57
2021-12-29 16:33:53 S 07 21 38.873 +26 40 41.30 V C57
2021-12-29 16:33:53 s 1 -124501.17 8 -33603.798 7090.0 C57
2021-12-29 16:43:53 S 07 21 37.495 +26 41 01.82 V C57
2021-12-29 16:43:53 s 1 -123775.84 2 -34518.429 4290.0 C57
2021-12-29 16:53:53 S 07 21 35.966 +26 41 22.63 V C57
2021-12-29 16:53:53 s 1 -123043.85 6 -35431.212 3290.0 C57
2021-12-29 17:03:53 S 07 21 34.310 +26 41 43.33 V C57
2021-12-29 17:03:53 s 1 -122305.18 0 -36342.074 3930.0 C57
2021-12-29 17:13:53 S 07 21 32.940 +26 42 02.88 V C57
2021-12-29 17:13:53 s 1 -121559.77 4 -37250.943 6090.0 C57
2021-12-29 17:23:53 S 07 21 31.457 +26 42 23.44 V C57
2021-12-29 17:23:53 s 1 -120807.59 9 -38157.743 9590.0 C57
2021-12-29 17:33:53 S 07 21 29.978 +26 42 42.66 V C57
2021-12-29 17:33:53 s 1 -120048.61 4 -39062.399 4300.0 C57
2021-12-29 17:43:53 S 07 21 28.603 +26 43 05.66 V C57
2021-12-29 17:43:53 s 1 -119282.78 2 -39964.832 80.0 C57
2021-12-29 17:53:53 S 07 21 27.350 +26 43 25.93 V C57
2021-12-29 17:53:53 s 1 -118510.06 3 -40864.965 6770.0 C57
2021-12-29 18:03:53 S 07 21 25.776 +26 43 48.25 V C57
2021-12-29 18:03:53 s 1 -117730.41 9 -41762.715 4230.0 C57
2021-12-29 18:13:53 S 07 21 24.463 +26 44 02.22 V C57