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
2021-12-29 22:43:53 s 1 -92950.312 0 -65554.501 3610.0 C57
2021-12-29 22:53:53 S 07 20 44.710 +26 53 41.64 V C57
2021-12-29 22:53:53 s 1 -91955.919 0 -66340.744 6200.0 C57
2021-12-29 23:13:53 S 07 20 42.113 +26 54 13.64 V C57
2021-12-29 23:13:53 s 1 -89943.920 0 -67896.368 6130.0 C57
2021-12-29 23:33:53 S 07 20 39.060 +26 55 01.49 V C57
2021-12-29 23:33:53 s 1 -87900.932 0 -69428.609 9130.0 C57
2021-12-29 23:43:53 S 07 20 37.618 +26 55 21.32 V C57
2021-12-29 23:43:53 s 1 -86867.808 0 -70185.617 3100.0 C57
2021-12-30 00:03:53 S 07 20 34.838 +26 56 01.68 V C57
2021-12-30 00:03:53 s 1 -84778.305 0 -71680.710 6210.0 C57
2021-12-30 00:13:53 S 07 20 34.063 +26 56 20.83 V C57
2021-12-30 00:13:53 s 1 -83721.933 0 -72418.508 5470.0 C57
2021-12-30 00:33:53 S 07 20 30.998 +26 57 06.52 V C57
2021-12-30 00:33:53 s 1 -81585.982 0 -73873.886 9770.0 C57
2021-12-30 01:03:53 S 07 20 26.897 +26 58 03.83 V C57
2021-12-30 01:03:53 s 1 -78324.220 0 -76004.188 2110.0 C57
2021-12-30 01:13:53 S 07 20 25.577 +26 58 22.37 V C57
2021-12-30 01:13:53 s 1 -77221.609 0 -76699.616 4260.0 C57
2021-12-30 01:33:53 S 07 20 22.685 +26 59 05.24 V C57
2021-12-30 01:33:53 s 1 -74993.484 0 -78067.550 6480.0 C57
2021-12-30 02:03:53 S 07 20 18.996 +27 00 09.07 V C57
2021-12-30 02:03:53 s 1 -71594.462 0 -80059.814 7110.0 C57
2021-12-30 02:23:53 S 07 20 16.046 +27 00 48.85 V C57
2021-12-30 02:23:53 s 1 -69290.958 0 -81346.397 8030.0 C57
2021-12-30 02:33:53 S 07 20 14.983 +27 01 09.70 V C57
2021-12-30 02:33:53 s 1 -68128.082 0 -81976.734 9320.0 C57
2021-12-30 02:43:53 S 07 20 13.591 +27 01 30.61 V C57
2021-12-30 02:43:53 s 1 -66957.851 0 -82598.222 1480.0 C57
2021-12-30 03:03:53 S 07 20 10.951 +27 02 13.92 V C57
2021-12-30 03:03:53 s 1 -64595.534 0 -83814.006 9540.0 C57
2021-12-30 03:13:53 S 07 20 09.720 +27 02 31.52 V C57
2021-12-30 03:13:53 s 1 -63403.558 0 -84407.980 6010.0 C57
2021-12-30 03:23:53 S 07 20 07.968 +27 02 47.69 V C57
2021-12-30 03:23:53 s 1 -62204.452 0 -84992.460 4530.0 C57
2021-12-30 03:33:53 S 07 20 06.950 +27 03 11.38 V C57
2021-12-30 03:33:53 s 1 -60998.280 0 -85567.284 5420.0 C57
2022-01-01 01:23:53 S 07 14 11.335 +28 38 48.05 V C57
2022-01-01 01:23:53 s 1 +173272.85 7 +79825.872 4670.0 C57
2022-01-01 01:33:53 S 07 14 10.502 +28 39 08.96 V C57
2022-01-01 01:33:53 s 1 +173458.81 9 +80709.624 4000.0 C57
2022-01-01 01:43:53 S 07 14 08.950 +28 39 29.95 V C57
2022-01-01 01:43:53 s 1 +173641.86 9 +81592.028 1130.0 C57
2022-01-01 03:23:53 S 07 13 54.996 +28 42 45.54 V C57
2022-01-01 03:23:53 s 1 +175316.38 0 +90341.049 9640.0 C57
2022-01-01 03:33:53 S 07 13 53.712 +28 43 02.96 V C57
2022-01-01 03:33:53 s 1 +175468.63 4 +91208.368 7960.0 C57
2022-01-01 03:43:53 S 07 13 52.111 +28 43 28.45 V C57
2022-01-01 03:43:53 s 1 +175618.19 6 +92074.295 5050.0 C57
2022-01-01 05:23:53 S 07 13 38.378 +28 46 39.50 V C57