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
2021-12-22 21:03:54 S 07 48 50.054 +20 15 29.23 V C57
2021-12-22 21:03:54 s 1 +32367.709 0 +384282.63 7390.0 C57
2021-12-22 21:13:54 S 07 48 48.324 +20 15 58.25 V C57
2021-12-22 21:13:54 s 1 +32014.505 0 +384367.70 8830.0 C57
2021-12-22 21:23:54 S 07 48 46.404 +20 16 24.56 V C57
2021-12-22 21:23:54 s 1 +31661.216 0 +384451.81 160.0 C57
2021-12-22 21:33:54 S 07 48 44.894 +20 16 52.10 V C57
2021-12-22 21:33:54 s 1 +31307.843 0 +384534.96 1370.0 C57
2021-12-22 21:43:53 S 07 48 42.900 +20 17 18.24 V C57
2021-12-22 21:43:53 s 1 +30954.386 0 +384617.14 2470.0 C57
2021-12-22 22:03:53 S 07 48 39.684 +20 18 14.11 V C57
2021-12-22 22:03:53 s 1 +30247.227 0 +384778.61 4370.0 C57
2021-12-22 22:13:54 S 07 48 37.922 +20 18 41.04 V C57
2021-12-22 22:13:54 s 1 +29893.526 0 +384857.90 5170.0 C57
2021-12-22 22:23:54 S 07 48 36.478 +20 19 04.91 V C57
2021-12-22 22:23:54 s 1 +29539.746 0 +384936.22 5880.0 C57
2021-12-22 22:33:54 S 07 48 34.546 +20 19 33.42 V C57
2021-12-22 22:33:54 s 1 +29185.887 0 +385013.58 6510.0 C57
2021-12-22 22:43:54 S 07 48 32.940 +20 19 59.56 V C57
2021-12-22 22:43:54 s 1 +28831.950 0 +385089.98 7040.0 C57
2021-12-22 22:53:53 S 07 48 31.200 +20 20 26.05 V C57
2021-12-22 22:53:53 s 1 +28477.937 0 +385165.42 2500.0 C57
2021-12-22 23:03:54 S 07 48 29.568 +20 20 52.55 V C57
2021-12-22 23:03:54 s 1 +28123.848 0 +385239.89 2120.0 C57
2021-12-22 23:13:53 S 07 48 27.619 +20 21 22.07 V C57
2021-12-22 23:13:53 s 1 +27769.684 0 +385313.40 1810.0 C57
2021-12-22 23:23:54 S 07 48 26.244 +20 21 43.92 V C57
2021-12-22 23:23:54 s 1 +27415.446 0 +385385.95 1580.0 C57
2021-12-23 00:13:54 S 07 48 17.710 +20 24 02.41 V C57
2021-12-23 00:13:54 s 1 +25643.180 0 +385734.26 1280.0 C57
2021-12-23 00:33:54 S 07 48 14.165 +20 24 52.60 V C57
2021-12-23 00:33:54 s 1 +24933.788 0 +385866.85 1510.0 C57
2021-12-23 00:43:53 S 07 48 12.629 +20 25 20.64 V C57
2021-12-23 00:43:53 s 1 +24578.992 0 +385931.71 1690.0 C57
2021-12-23 00:53:54 S 07 48 11.002 +20 25 50.48 V C57
2021-12-23 00:53:54 s 1 +24224.130 0 +385995.60 1890.0 C57
2021-12-23 01:03:53 S 07 48 09.238 +20 26 16.84 V C57
2021-12-23 01:03:53 s 1 +23869.203 0 +386058.54 2130.0 C57
2021-12-23 01:13:54 S 07 48 06.979 +20 26 44.81 V C57
2021-12-23 01:13:54 s 1 +23514.213 0 +386120.51 2390.0 C57
2021-12-23 01:33:54 S 07 48 03.967 +20 27 34.70 V C57
2021-12-23 01:33:54 s 1 +22804.045 0 +386241.57 2980.0 C57
2021-12-23 01:43:54 S 07 48 02.254 +20 28 05.12 V C57
2021-12-23 01:43:54 s 1 +22448.869 0 +386300.66 3300.0 C57
2021-12-23 02:03:54 S 07 47 59.021 +20 28 57.14 V C57
2021-12-23 02:03:54 s 1 +21738.338 0 +386415.96 3970.0 C57
2021-12-23 02:13:53 S 07 47 57.314 +20 29 21.01 V C57
2021-12-23 02:13:53 s 1 +21382.985 0 +386472.18 4300.0 C57
2021-12-23 02:23:54 S 07 47 55.661 +20 29 50.86 V C57
2021-12-23 02:23:54 s 1 +21027.574 0 +386527.43 4640.0 C57