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
2021-12-21 17:03:54 S 07 53 32.966 +18 58 26.94 V C57
2021-12-21 17:03:54 s 1 +89696.837 0 +356072.54 4190.0 C57
2021-12-21 17:13:54 S 07 53 31.373 +18 58 55.63 V C57
2021-12-21 17:13:54 s 1 +89372.397 0 +356324.02 5230.0 C57
2021-12-21 17:23:54 S 07 53 29.753 +18 59 22.96 V C57
2021-12-21 17:23:54 s 1 +89047.693 0 +356574.49 5410.0 C57
2021-12-21 17:33:54 S 07 53 27.823 +18 59 51.50 V C57
2021-12-21 17:33:54 s 1 +88722.724 0 +356823.92 4730.0 C57
2021-12-21 17:43:54 S 07 53 26.206 +19 00 24.08 V C57
2021-12-21 17:43:54 s 1 +88397.493 0 +357072.33 3210.0 C57
2021-12-21 17:53:54 S 07 53 24.706 +19 00 47.38 V C57
2021-12-21 17:53:54 s 1 +88072.000 0 +357319.72 830.0 C57
2021-12-21 18:03:54 S 07 53 23.038 +19 01 14.74 V C57
2021-12-21 18:03:54 s 1 +87746.247 0 +357566.08 7620.0 C57
2021-12-21 18:13:54 S 07 53 21.199 +19 01 44.33 V C57
2021-12-21 18:13:54 s 1 +87420.235 0 +357811.42 3570.0 C57
2021-12-21 18:23:54 S 07 53 19.841 +19 02 09.10 V C57
2021-12-21 18:23:54 s 1 +87093.965 0 +358055.74 8680.0 C57
2021-12-21 18:33:54 S 07 53 18.228 +19 02 42.50 V C57
2021-12-21 18:33:54 s 1 +86767.438 0 +358299.03 2970.0 C57
2021-12-21 18:43:54 S 07 53 16.409 +19 03 09.54 V C57
2021-12-21 18:43:54 s 1 +86440.657 0 +358541.31 6450.0 C57
2021-12-21 18:53:54 S 07 53 14.578 +19 03 36.83 V C57
2021-12-21 18:53:54 s 1 +86113.621 0 +358782.56 9100.0 C57
2021-12-21 19:03:54 S 07 53 12.790 +19 04 04.33 V C57
2021-12-21 19:03:54 s 1 +85786.332 0 +359022.79 950.0 C57
2021-12-21 19:13:54 S 07 53 11.170 +19 04 33.64 V C57
2021-12-21 19:13:54 s 1 +85458.792 0 +359262.00 1980.0 C57
2021-12-21 19:23:54 S 07 53 09.766 +19 04 58.51 V C57
2021-12-21 19:23:54 s 1 +85131.002 0 +359500.19 2220.0 C57
2021-12-21 19:33:54 S 07 53 07.826 +19 05 29.08 V C57
2021-12-21 19:33:54 s 1 +84802.962 0 +359737.36 1670.0 C57
2021-12-21 19:43:54 S 07 53 06.022 +19 05 58.67 V C57
2021-12-21 19:43:54 s 1 +84474.675 0 +359973.52 320.0 C57
2021-12-21 19:53:54 S 07 53 04.366 +19 06 25.78 V C57
2021-12-21 19:53:54 s 1 +84146.141 0 +360208.65 8190.0 C57
2021-12-21 20:03:54 S 07 53 02.688 +19 06 53.71 V C57
2021-12-21 20:03:54 s 1 +83817.362 0 +360442.77 5280.0 C57
2021-12-21 20:23:54 S 07 52 59.275 +19 07 54.19 V C57
2021-12-21 20:23:54 s 1 +83159.072 0 +360907.96 7130.0 C57
2021-12-21 20:33:54 S 07 52 57.595 +19 08 20.87 V C57
2021-12-21 20:33:54 s 1 +82829.563 0 +361139.02 1910.0 C57
2021-12-21 20:43:54 S 07 52 56.052 +19 08 42.29 V C57
2021-12-21 20:43:54 s 1 +82499.815 0 +361369.08 5920.0 C57
2021-12-21 20:53:54 S 07 52 54.374 +19 09 13.79 V C57
2021-12-21 20:53:54 s 1 +82169.826 0 +361598.11 9180.0 C57
2021-12-21 21:03:54 S 07 52 52.591 +19 09 41.26 V C57
2021-12-21 21:03:54 s 1 +81839.600 0 +361826.14 1700.0 C57
2021-12-21 21:13:54 S 07 52 51.240 +19 10 05.12 V C57
2021-12-21 21:13:54 s 1 +81509.137 0 +362053.15 3460.0 C57