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
2021-12-14 17:03:54 S 08 19 18.490 +10 22 10.81 V C57
2021-12-14 17:03:54 s 1 -177271.76 8 +130793.25 7020.0 C57
2021-12-14 17:13:54 S 08 19 16.867 +10 22 39.07 V C57
2021-12-14 17:13:54 s 1 -177236.39 9 +129995.81 5010.0 C57
2021-12-14 17:23:54 S 08 19 15.319 +10 23 11.87 V C57
2021-12-14 17:23:54 s 1 -177199.01 5 +129196.89 4260.0 C57
2021-12-14 17:33:54 S 08 19 13.718 +10 23 48.80 V C57
2021-12-14 17:33:54 s 1 -177159.60 1 +128396.49 4730.0 C57
2021-12-14 17:43:54 S 08 19 11.796 +10 24 15.62 V C57
2021-12-14 17:43:54 s 1 -177118.14 6 +127594.61 6360.0 C57
2021-12-14 17:53:54 S 08 19 10.277 +10 24 50.04 V C57
2021-12-14 17:53:54 s 1 -177074.63 8 +126791.25 9100.0 C57
2021-12-14 18:03:54 S 08 19 08.666 +10 25 23.95 V C57
2021-12-14 18:03:54 s 1 -177029.06 3 +125986.41 2900.0 C57
2021-12-14 18:13:54 S 08 19 06.864 +10 25 51.35 V C57
2021-12-14 18:13:54 s 1 -176981.41 0 +125180.09 7700.0 C57
2021-12-14 18:23:54 S 08 19 05.249 +10 26 23.10 V C57
2021-12-14 18:23:54 s 1 -176931.66 5 +124372.29 3460.0 C57
2021-12-14 18:33:54 S 08 19 03.720 +10 27 00.22 V C57
2021-12-14 18:33:54 s 1 -176879.81 6 +123563.01 120.0 C57
2021-12-14 18:43:54 S 08 19 01.692 +10 27 24.19 V C57
2021-12-14 18:43:54 s 1 -176825.84 9 +122752.25 7630.0 C57
2021-12-14 18:53:54 S 08 19 00.446 +10 27 56.95 V C57
2021-12-14 18:53:54 s 1 -176769.75 2 +121940.01 5930.0 C57
2021-12-14 19:03:54 S 08 18 58.291 +10 28 32.45 V C57
2021-12-14 19:03:54 s 1 -176711.51 1 +121126.29 4970.0 C57
2021-12-14 19:13:54 S 08 18 56.849 +10 29 07.19 V C57
2021-12-14 19:13:54 s 1 -176651.11 2 +120311.09 4690.0 C57
2021-12-14 19:23:54 S 08 18 55.392 +10 29 30.37 V C57
2021-12-14 19:23:54 s 1 -176588.54 4 +119494.41 5030.0 C57
2021-12-14 19:33:54 S 08 18 53.618 +10 30 10.33 V C57
2021-12-14 19:33:54 s 1 -176523.79 1 +118676.25 5950.0 C57
2021-12-14 19:43:54 S 08 18 51.881 +10 30 35.21 V C57
2021-12-14 19:43:54 s 1 -176456.84 0 +117856.61 7390.0 C57
2021-12-14 19:53:54 S 08 18 50.210 +10 31 09.98 V C57
2021-12-14 19:53:54 s 1 -176387.67 8 +117035.50 9280.0 C57
2021-12-14 20:03:54 S 08 18 48.698 +10 31 41.52 V C57
2021-12-14 20:03:54 s 1 -176316.29 1 +116212.90 1570.0 C57
2021-12-14 20:13:54 S 08 18 46.745 +10 32 16.51 V C57
2021-12-14 20:13:54 s 1 -176242.66 4 +115388.83 4210.0 C57
2021-12-14 20:23:54 S 08 18 44.839 +10 32 52.87 V C57
2021-12-14 20:23:54 s 1 -176166.78 4 +114563.29 7130.0 C57
2021-12-14 20:33:54 S 08 18 43.848 +10 33 14.80 V C57
2021-12-14 20:33:54 s 1 -176088.63 5 +113736.26 270.0 C57
2021-12-14 20:53:54 S 08 18 40.414 +10 34 20.35 V C57
2021-12-14 20:53:54 s 1 -175925.47 8 +112077.79 7000.0 C57
2021-12-14 21:03:54 S 08 18 38.558 +10 34 54.88 V C57
2021-12-14 21:03:54 s 1 -175840.44 0 +111246.35 470.0 C57
2021-12-14 21:13:54 S 08 18 37.006 +10 35 23.24 V C57
2021-12-14 21:13:54 s 1 -175753.07 5 +110413.43 3920.0 C57