85867 (1999 BY9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3021932844 ± 3.49e-08
Semi-major axis (a)1.8299259884 AU ± 2.98e-09
Inclination (i)0.94551739° ± 1.76e-06
Long. of Asc. Node (Ω)254.11835193° ± 1.61e-04
Arg. of Perihelion (ω)287.83634413° ± 1.61e-04
Mean Anomaly (M)263.14966918° ± 1.01e-05
Mean Motion (n)0.3981639981°/day ± 9.74e-10
Perihelion dist (q)1.27693464 AU ± 6.39e-08
Aphelion dist (Q)2.38291733 AU ± 6.39e-08
Orbital Period2.47542793 yr ± 6.05e-09
Physical Parameters
H (abs. magnitude)18.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.407″
Uncertainty0
Orbit TypeAmor
MOID0.280323 AU
Observations Used753
Oppositions18
Arc Total1995-2025
First Observation Used1995-09-19
Last Observation Used2025-12-16
Observations (789)
Date Type RA Dec Mag Band Observatory
2025-11-13 15:31:31 C 03 17 41.43 +18 56 51.3 V D29
2025-11-13 15:51:53 C 03 17 40.13 +18 56 45.7 V D29
2025-11-15 06:32:08 C 03 15 21.258 +18 47 06.47 V G96
2025-11-15 06:39:30 C 03 15 20.804 +18 47 04.56 V G96
2025-11-15 06:46:53 C 03 15 20.344 +18 47 02.62 V G96
2025-11-15 06:54:16 C 03 15 19.897 +18 47 00.85 V G96
2025-11-15 18:04:59 C 03 14 39.30 +18 44 10.3 V D29
2025-11-15 18:25:21 C 03 14 38.02 +18 44 05.2 V D29
2025-11-15 18:45:43 C 03 14 36.73 +18 43 59.7 V D29
2025-11-18 13:15:11 C 03 10 37.33 +18 26 51.9 V D29
2025-11-18 13:35:33 C 03 10 36.08 +18 26 46.8 V D29
2025-11-18 13:55:55 C 03 10 34.81 +18 26 41.2 V D29
2025-11-19 14:34:24 C 03 09 05.99 +18 20 14.6 V D29
2025-11-19 14:43:18 C 03 09 05.41 +18 20 11.7 V D29
2025-11-19 14:54:46 C 03 09 04.75 +18 20 08.5 V D29
2025-11-19 15:03:40 C 03 09 04.16 +18 20 06.2 V D29
2025-11-19 15:15:08 C 03 09 03.47 +18 20 03.6 V D29
2025-11-19 15:24:02 C 03 09 02.83 +18 20 01.6 V D29
2025-11-20 14:22:59 C 03 07 40.60 +18 13 57.8 V D29
2025-11-20 14:43:21 C 03 07 39.35 +18 13 52.6 V D29
2025-11-20 15:03:43 C 03 07 38.09 +18 13 47.0 V D29
2025-11-30 03:07:06 C 02 54 41.404 +17 13 50.09 V G96
2025-11-30 03:15:10 C 02 54 41.026 +17 13 48.22 V G96
2025-11-30 03:23:16 C 02 54 40.615 +17 13 45.37 V G96
2025-11-30 03:31:21 C 02 54 40.277 +17 13 42.46 V G96
2025-12-07 09:52:49 C 02 46 15.602 +16 31 43.94 X F52
2025-12-07 10:10:45 C 02 46 14.767 +16 31 39.85 X F52
2025-12-07 10:28:31 C 02 46 13.954 +16 31 36.01 X F52
2025-12-08 09:16:51 C 02 45 15.970 +16 26 33.86 X F52
2025-12-08 09:32:43 C 02 45 15.283 +16 26 30.38 X F52
2025-12-08 09:48:35 C 02 45 14.581 +16 26 26.81 X F52
2025-12-08 10:04:28 C 02 45 13.896 +16 26 23.43 X F52
2025-12-10 07:15:10 C 02 43 24.784 +16 16 46.27 V G96
2025-12-10 07:23:16 C 02 43 24.542 +16 16 44.44 V G96
2025-12-10 07:31:23 C 02 43 24.143 +16 16 42.85 V G96
2025-12-10 07:39:29 C 02 43 23.826 +16 16 41.38 V G96
2025-12-16 14:04:20 C 02 38 21.91 +15 48 58.3 V D29
2025-12-16 14:24:42 C 02 38 21.28 +15 48 56.1 V D29
2025-12-16 14:45:04 C 02 38 20.65 +15 48 52.6 V D29