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
2021-12-20 15:43:54 S 07 57 44.820 +17 46 16.64 V C57
2021-12-20 15:43:54 s 1 +135073.19 0 +305525.57 5470.0 C57
2021-12-20 15:53:54 S 07 57 43.195 +17 46 46.74 V C57
2021-12-20 15:53:54 s 1 +134806.43 4 +305941.02 8160.0 C57
2021-12-20 16:03:54 S 07 57 41.522 +17 47 16.44 V C57
2021-12-20 16:03:54 s 1 +134539.16 5 +306355.33 8980.0 C57
2021-12-20 16:13:54 S 07 57 39.787 +17 47 43.73 V C57
2021-12-20 16:13:54 s 1 +134271.38 4 +306768.50 7940.0 C57
2021-12-20 16:23:54 S 07 57 38.225 +17 48 12.17 V C57
2021-12-20 16:23:54 s 1 +134003.09 4 +307180.53 5050.0 C57
2021-12-20 16:33:54 S 07 57 36.667 +17 48 41.26 V C57
2021-12-20 16:33:54 s 1 +133734.29 7 +307591.42 320.0 C57
2021-12-20 16:43:54 S 07 57 34.961 +17 49 11.21 V C57
2021-12-20 16:43:54 s 1 +133464.99 6 +308001.17 3750.0 C57
2021-12-20 16:53:54 S 07 57 33.341 +17 49 39.68 V C57
2021-12-20 16:53:54 s 1 +133195.19 1 +308409.79 5350.0 C57
2021-12-20 17:03:54 S 07 57 31.716 +17 50 09.71 V C57
2021-12-20 17:03:54 s 1 +132924.88 6 +308817.27 5140.0 C57
2021-12-20 17:13:54 S 07 57 30.046 +17 50 39.26 V C57
2021-12-20 17:13:54 s 1 +132654.08 2 +309223.62 3110.0 C57
2021-12-20 17:23:54 S 07 57 28.526 +17 51 09.68 V C57
2021-12-20 17:23:54 s 1 +132382.78 1 +309628.83 9290.0 C57
2021-12-20 17:33:54 S 07 57 26.674 +17 51 33.77 V C57
2021-12-20 17:33:54 s 1 +132110.98 6 +310032.91 3670.0 C57
2021-12-20 17:43:54 S 07 57 24.970 +17 52 02.96 V C57
2021-12-20 17:43:54 s 1 +131838.69 9 +310435.85 6270.0 C57
2021-12-20 17:53:54 S 07 57 23.616 +17 52 33.31 V C57
2021-12-20 17:53:54 s 1 +131565.92 0 +310837.67 7090.0 C57
2021-12-20 18:03:54 S 07 57 21.847 +17 53 02.18 V C57
2021-12-20 18:03:54 s 1 +131292.65 4 +311238.35 6150.0 C57
2021-12-20 18:13:54 S 07 57 20.028 +17 53 30.66 V C57
2021-12-20 18:13:54 s 1 +131018.90 1 +311637.91 3440.0 C57
2021-12-20 18:23:54 S 07 57 18.485 +17 54 01.69 V C57
2021-12-20 18:23:54 s 1 +130744.66 3 +312036.34 8980.0 C57
2021-12-20 18:33:54 S 07 57 16.853 +17 54 29.16 V C57
2021-12-20 18:33:54 s 1 +130469.94 3 +312433.64 2780.0 C57
2021-12-20 18:43:54 S 07 57 15.348 +17 54 57.96 V C57
2021-12-20 18:43:54 s 1 +130194.74 3 +312829.81 4840.0 C57
2021-12-20 18:53:54 S 07 57 13.702 +17 55 26.72 V C57
2021-12-20 18:53:54 s 1 +129919.06 4 +313224.86 5170.0 C57
2021-12-20 19:03:54 S 07 57 11.969 +17 55 56.42 V C57
2021-12-20 19:03:54 s 1 +129642.90 9 +313618.79 3790.0 C57
2021-12-20 19:13:54 S 07 57 10.181 +17 56 26.27 V C57
2021-12-20 19:13:54 s 1 +129366.28 0 +314011.59 690.0 C57
2021-12-20 19:33:54 S 07 57 06.989 +17 57 23.36 V C57
2021-12-20 19:33:54 s 1 +128811.60 5 +314793.82 9390.0 C57
2021-12-20 19:43:54 S 07 57 05.407 +17 57 48.82 V C57
2021-12-20 19:43:54 s 1 +128533.56 4 +315183.26 1200.0 C57
2021-12-20 20:03:54 S 07 57 01.968 +17 58 51.49 V C57
2021-12-20 20:03:54 s 1 +127976.08 3 +315958.77 9800.0 C57