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
2021-12-26 09:43:53 s 1 -137326.25 7 +302409.35 2270.0 C57
2021-12-26 09:53:53 S 07 34 23.244 +23 49 37.99 V C57
2021-12-26 09:53:53 s 1 -137593.18 3 +301988.62 690.0 C57
2021-12-26 10:03:53 S 07 34 21.691 +23 49 57.76 V C57
2021-12-26 10:03:53 s 1 -137859.59 6 +301566.77 6620.0 C57
2021-12-26 10:13:53 S 07 34 20.059 +23 50 19.75 V C57
2021-12-26 10:13:53 s 1 -138125.49 5 +301143.81 40.0 C57
2021-12-26 10:23:53 S 07 34 18.082 +23 50 46.75 V C57
2021-12-26 10:23:53 s 1 -138390.87 7 +300719.73 950.0 C57
2021-12-26 10:33:53 S 07 34 16.598 +23 51 08.60 V C57
2021-12-26 10:33:53 s 1 -138655.74 0 +300294.54 9330.0 C57
2021-12-26 10:43:53 S 07 34 15.036 +23 51 29.12 V C57
2021-12-26 10:43:53 s 1 -138920.08 1 +299868.22 5180.0 C57
2021-12-26 10:53:53 S 07 34 13.332 +23 51 55.22 V C57
2021-12-26 10:53:53 s 1 -139183.90 0 +299440.79 8490.0 C57
2021-12-26 11:03:53 S 07 34 11.563 +23 52 16.28 V C57
2021-12-26 11:03:53 s 1 -139447.19 3 +299012.23 9240.0 C57
2021-12-26 11:13:53 S 07 34 09.766 +23 52 40.12 V C57
2021-12-26 11:13:53 s 1 -139709.95 8 +298582.56 7430.0 C57
2021-12-26 11:23:53 S 07 34 08.028 +23 53 07.76 V C57
2021-12-26 11:23:53 s 1 -139972.19 4 +298151.76 3050.0 C57
2021-12-26 11:43:53 S 07 34 04.915 +23 53 50.35 V C57
2021-12-26 11:43:53 s 1 -140495.06 7 +297286.79 6520.0 C57
2021-12-26 11:53:53 S 07 34 03.134 +23 54 12.02 V C57
2021-12-26 11:53:53 s 1 -140755.70 0 +296852.61 4370.0 C57
2021-12-26 12:03:53 S 07 34 01.522 +23 54 37.80 V C57
2021-12-26 12:03:53 s 1 -141015.79 5 +296417.32 9600.0 C57
2021-12-26 12:13:53 S 07 33 59.758 +23 55 03.68 V C57
2021-12-26 12:13:53 s 1 -141275.34 9 +295980.89 2200.0 C57
2021-12-26 12:23:53 S 07 33 58.337 +23 55 34.18 V C57
2021-12-26 12:23:53 s 1 -141534.36 0 +295543.34 2180.0 C57
2021-12-26 12:33:53 S 07 33 56.626 +23 55 47.10 V C57
2021-12-26 12:33:53 s 1 -141792.82 5 +295104.65 9520.0 C57
2021-12-26 12:43:53 S 07 33 54.967 +23 56 12.88 V C57
2021-12-26 12:43:53 s 1 -142050.74 4 +294664.84 4200.0 C57
2021-12-26 12:53:53 S 07 33 52.980 +23 56 40.42 V C57
2021-12-26 12:53:53 s 1 -142308.11 2 +294223.90 6230.0 C57
2021-12-26 13:03:53 S 07 33 51.334 +23 56 56.58 V C57
2021-12-26 13:03:53 s 1 -142564.92 9 +293781.83 5580.0 C57
2021-12-26 13:13:53 S 07 33 49.442 +23 57 19.91 V C57
2021-12-26 13:13:53 s 1 -142821.19 1 +293338.62 2250.0 C57
2021-12-26 13:23:53 S 07 33 48.038 +23 57 43.20 V C57
2021-12-26 13:23:53 s 1 -143076.89 7 +292894.28 6230.0 C57
2021-12-26 13:33:53 S 07 33 46.154 +23 58 06.06 V C57
2021-12-26 13:33:53 s 1 -143332.04 4 +292448.81 7510.0 C57
2021-12-26 13:43:53 S 07 33 44.674 +23 58 31.04 V C57
2021-12-26 13:43:53 s 1 -143586.63 0 +292002.20 6070.0 C57
2021-12-26 13:53:53 S 07 33 42.986 +23 58 49.15 V C57
2021-12-26 13:53:53 s 1 -143840.65 2 +291554.45 1920.0 C57
2021-12-26 14:03:53 S 07 33 40.910 +23 59 19.18 V C57