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 18:13:53 s 1 -116943.81 3 -42658.001 2330.0 C57
2021-12-29 18:23:53 S 07 21 23.314 +26 44 23.86 V C57
2021-12-29 18:23:53 s 1 -116150.20 5 -43550.740 930.0 C57
2021-12-29 18:33:53 S 07 21 21.566 +26 44 46.07 V C57
2021-12-29 18:33:53 s 1 -115349.55 9 -44440.845 9900.0 C57
2021-12-29 18:43:53 S 07 21 19.932 +26 45 10.12 V C57
2021-12-29 18:43:53 s 1 -114541.83 9 -45328.231 9090.0 C57
2021-12-29 18:53:53 S 07 21 18.528 +26 45 27.25 V C57
2021-12-29 18:53:53 s 1 -113727.00 8 -46212.808 8380.0 C57
2021-12-29 19:03:53 S 07 21 17.110 +26 45 47.09 V C57
2021-12-29 19:03:53 s 1 -112905.03 0 -47094.487 7650.0 C57
2021-12-29 19:13:53 S 07 21 15.343 +26 46 08.98 V C57
2021-12-29 19:13:53 s 1 -112075.87 0 -47973.177 6770.0 C57
2021-12-29 19:33:53 S 07 21 12.986 +26 46 49.48 V C57
2021-12-29 19:33:53 s 1 -110395.86 7 -49721.210 4060.0 C57
2021-12-29 19:43:53 S 07 21 11.484 +26 47 09.85 V C57
2021-12-29 19:43:53 s 1 -109544.95 6 -50590.362 2010.0 C57
2021-12-29 19:53:53 S 07 21 09.852 +26 47 35.09 V C57
2021-12-29 19:53:53 s 1 -108686.72 9 -51456.142 9340.0 C57
2021-12-29 20:03:53 S 07 21 08.642 +26 47 48.77 V C57
2021-12-29 20:03:53 s 1 -107821.15 3 -52318.447 5940.0 C57
2021-12-29 20:23:53 S 07 21 05.837 +26 48 35.03 V C57
2021-12-29 20:23:53 s 1 -106067.83 5 -54032.230 6570.0 C57
2021-12-29 20:33:53 S 07 21 04.378 +26 48 50.83 V C57
2021-12-29 20:33:53 s 1 -105180.03 3 -54883.497 400.0 C57
2021-12-29 20:43:53 S 07 21 03.094 +26 49 10.60 V C57
2021-12-29 20:43:53 s 1 -104284.76 4 -55730.874 3130.0 C57
2021-12-29 20:53:53 S 07 21 01.627 +26 49 32.81 V C57
2021-12-29 20:53:53 s 1 -103382.00 0 -56574.251 4650.0 C57
2021-12-29 21:03:53 S 07 21 00.077 +26 49 56.64 V C57
2021-12-29 21:03:53 s 1 -102471.71 6 -57413.517 4900.0 C57
2021-12-29 21:13:53 S 07 20 58.836 +26 50 09.17 V C57
2021-12-29 21:13:53 s 1 -101553.88 6 -58248.560 3790.0 C57
2021-12-29 21:23:53 S 07 20 57.185 +26 50 32.21 V C57
2021-12-29 21:23:53 s 1 -100628.48 6 -59079.267 1270.0 C57
2021-12-29 21:33:53 S 07 20 55.874 +26 50 55.68 V C57
2021-12-29 21:33:53 s 1 -99695.494 0 -59905.520 7260.0 C57
2021-12-29 21:43:53 S 07 20 54.646 +26 51 11.41 V C57
2021-12-29 21:43:53 s 1 -98754.888 0 -60727.203 1710.0 C57
2021-12-29 21:53:53 S 07 20 53.434 +26 51 33.62 V C57
2021-12-29 21:53:53 s 1 -97806.646 0 -61544.196 4570.0 C57
2021-12-29 22:03:53 S 07 20 51.682 +26 51 58.46 V C57
2021-12-29 22:03:53 s 1 -96850.752 0 -62356.378 5780.0 C57
2021-12-29 22:13:53 S 07 20 50.069 +26 52 15.85 V C57
2021-12-29 22:13:53 s 1 -95887.186 0 -63163.625 5320.0 C57
2021-12-29 22:23:53 S 07 20 48.991 +26 52 35.22 V C57
2021-12-29 22:23:53 s 1 -94915.934 0 -63965.812 3160.0 C57
2021-12-29 22:33:53 S 07 20 47.522 +26 52 55.16 V C57
2021-12-29 22:33:53 s 1 -93936.980 0 -64762.814 9260.0 C57
2021-12-29 22:43:53 S 07 20 46.253 +26 53 19.32 V C57