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
2021-12-13 12:33:54 S 08 24 03.989 +08 50 58.60 V C57
2021-12-13 12:33:54 s 1 -161315.44 2 +246221.80 9990.0 C57
2021-12-13 12:43:54 S 08 24 02.150 +08 51 29.74 V C57
2021-12-13 12:43:54 s 1 -161503.48 0 +245661.25 4200.0 C57
2021-12-13 13:13:54 S 08 23 57.353 +08 53 10.46 V C57
2021-12-13 13:13:54 s 1 -162064.03 0 +243975.07 2100.0 C57
2021-12-13 13:23:54 S 08 23 55.711 +08 53 36.42 V C57
2021-12-13 13:23:54 s 1 -162248.72 0 +243409.45 1160.0 C57
2021-12-13 13:43:54 S 08 23 52.270 +08 54 42.95 V C57
2021-12-13 13:43:54 s 1 -162615.55 5 +242274.41 7770.0 C57
2021-12-13 13:53:54 S 08 23 50.743 +08 55 13.01 V C57
2021-12-13 13:53:54 s 1 -162797.69 2 +241704.97 5290.0 C57
2021-12-13 14:03:54 S 08 23 48.778 +08 55 44.22 V C57
2021-12-13 14:03:54 s 1 -162978.96 9 +241134.26 8920.0 C57
2021-12-13 14:13:54 S 08 23 47.287 +08 56 16.69 V C57
2021-12-13 14:13:54 s 1 -163159.38 3 +240562.27 8650.0 C57
2021-12-13 14:23:54 S 08 23 45.619 +08 56 51.54 V C57
2021-12-13 14:23:54 s 1 -163338.93 1 +239989.01 4460.0 C57
2021-12-13 14:33:54 S 08 23 44.035 +08 57 22.97 V C57
2021-12-13 14:33:54 s 1 -163517.60 6 +239414.46 6350.0 C57
2021-12-13 14:43:54 S 08 23 42.005 +08 57 53.78 V C57
2021-12-13 14:43:54 s 1 -163695.40 7 +238838.63 4280.0 C57
2021-12-13 14:53:54 S 08 23 40.409 +08 58 29.06 V C57
2021-12-13 14:53:54 s 1 -163872.32 9 +238261.52 8240.0 C57
2021-12-13 15:03:54 S 08 23 38.820 +08 58 58.30 V C57
2021-12-13 15:03:54 s 1 -164048.36 7 +237683.12 8220.0 C57
2021-12-13 15:13:54 S 08 23 37.092 +08 59 31.02 V C57
2021-12-13 15:13:54 s 1 -164223.51 8 +237103.44 4200.0 C57
2021-12-13 15:23:54 S 08 23 35.568 +09 00 03.20 V C57
2021-12-13 15:23:54 s 1 -164397.77 8 +236522.47 6160.0 C57
2021-12-13 15:33:54 S 08 23 33.734 +09 00 31.75 V C57
2021-12-13 15:33:54 s 1 -164571.14 2 +235940.21 4080.0 C57
2021-12-13 15:43:54 S 08 23 32.244 +09 01 05.92 V C57
2021-12-13 15:43:54 s 1 -164743.60 6 +235356.66 7940.0 C57
2021-12-13 15:53:54 S 08 23 30.830 +09 01 37.52 V C57
2021-12-13 15:53:54 s 1 -164915.16 7 +234771.82 7740.0 C57
2021-12-13 16:03:54 S 08 23 29.134 +09 02 14.03 V C57
2021-12-13 16:03:54 s 1 -165085.81 9 +234185.68 3440.0 C57
2021-12-13 16:13:54 S 08 23 27.046 +09 02 46.61 V C57
2021-12-13 16:13:54 s 1 -165255.55 9 +233598.25 5040.0 C57
2021-12-13 16:23:54 S 08 23 25.579 +09 03 17.53 V C57
2021-12-13 16:23:54 s 1 -165424.38 2 +233009.53 2510.0 C57
2021-12-13 16:33:54 S 08 23 23.645 +09 03 49.86 V C57
2021-12-13 16:33:54 s 1 -165592.28 5 +232419.51 5830.0 C57
2021-12-13 16:43:54 S 08 23 22.178 +09 04 19.24 V C57
2021-12-13 16:43:54 s 1 -165759.26 2 +231828.19 4990.0 C57
2021-12-13 17:03:54 S 08 23 18.977 +09 05 24.29 V C57
2021-12-13 17:03:54 s 1 -166090.42 4 +230641.64 750.0 C57
2021-12-13 17:13:54 S 08 23 17.249 +09 05 52.62 V C57
2021-12-13 17:13:54 s 1 -166254.60 0 +230046.41 7320.0 C57