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
2004-03-07 06:34:12 C 08 48 27.07 +14 21 30.6 c H41
2004-03-09 04:08:09 C 08 48 59.14 +14 20 20.9 d 712
2004-03-09 04:50:02 C 08 48 59.48 +14 20 20.1 d 712
2004-03-09 05:03:34 C 08 48 59.59 +14 20 19.8 d 712
2004-03-09 05:46:32 C 08 48 59.86 +14 20 19.0 d 712
2004-03-09 06:31:41 C 08 49 00.34 +14 20 16.3 d 712
2004-03-10 03:07:05 C 08 49 20.28 +14 19 30.7 d 712
2004-03-10 03:22:50 C 08 49 20.16 +14 19 31.0 r H41
2004-03-10 03:25:26 C 08 49 20.18 +14 19 31.9 r H41
2004-03-10 03:27:50 C 08 49 20.25 +14 19 31.0 r H41
2004-03-10 03:30:41 C 08 49 20.28 +14 19 31.0 r H41
2004-03-10 03:47:07 C 08 49 20.71 +14 19 29.6 d 712
2004-03-12 06:44:54 C 08 50 18.17 +14 16 59.1 r H41
2004-03-12 06:48:08 C 08 50 18.18 +14 17 00.5 r H41
2004-03-12 06:50:30 C 08 50 18.23 +14 17 00.8 r H41
2004-03-12 06:53:24 C 08 50 18.32 +14 16 59.5 r H41
2004-03-14 05:26:07 C 08 51 27.47 +14 13 59.5 c 688
2004-03-14 05:35:47 C 08 51 27.66 +14 13 58.9 c 688
2004-03-14 05:45:36 C 08 51 27.89 +14 13 57.9 c 688
2004-03-14 18:41:24 C 08 51 50.21 +14 12 53.9 c 113
2004-03-14 18:46:34 C 08 51 50.35 +14 12 53.5 c 113
2004-03-14 18:51:45 C 08 51 50.47 +14 12 53.1 c 113
2004-03-14 18:56:55 C 08 51 50.59 +14 12 52.8 c 113
2004-03-14 19:04:41 C 08 51 50.79 +14 12 52.0 c 113
2004-03-15 03:05:26 C 08 52 05.77 +14 12 18.1 r H41
2004-03-15 03:10:54 C 08 52 04.70 +14 12 18.8 r H41
2004-03-15 03:14:19 C 08 52 04.72 +14 12 17.8 r H41
2004-03-15 03:17:15 C 08 52 04.89 +14 12 17.9 r H41
2004-03-15 03:19:52 C 08 52 04.84 +14 12 19.2 r H41
2004-03-15 05:17:39 C 08 52 07.95 +14 12 09.7 18.3 c 704
2004-03-15 05:33:33 C 08 52 08.34 +14 12 08.5 18.7 c 704
2004-03-15 05:49:31 C 08 52 08.73 +14 12 07.3 19.0 c 704
2004-03-15 06:05:16 C 08 52 09.12 +14 12 06.0 19.3 c 704
2004-03-15 06:21:03 C 08 52 09.51 +14 12 04.1 18.5 c 704
2004-03-15 20:34:46 C 08 52 36.21 +14 10 47.2 c A28
2004-03-15 20:37:26 C 08 52 36.24 +14 10 47.7 c A28
2004-03-15 20:42:55 C 08 52 36.38 +14 10 46.5 c A28
2004-03-15 20:46:37 C 08 52 36.49 +14 10 46.2 c A28
2004-03-15 20:51:43 C 08 52 36.63 +14 10 45.9 c A28
2004-03-16 19:24:07 C 08 53 21.08 +14 08 41.4 r A16
2004-03-16 19:37:24 C 08 53 21.69 +14 08 38.4 r A16
2004-03-16 19:50:13 C 08 53 21.84 +14 08 38.0 r A16
2004-03-17 19:31:40 C 08 54 11.67 +14 06 15.7 c A35
2004-03-17 19:32:36 C 08 54 11.70 +14 06 15.1 c 113
2004-03-17 19:34:46 C 08 54 11.74 +14 06 14.8 c 113
2004-03-17 19:36:48 C 08 54 11.83 +14 06 15.1 c A35
2004-03-17 19:36:57 C 08 54 11.85 +14 06 14.6 c 113
2004-03-17 19:39:06 C 08 54 11.91 +14 06 14.9 c 113
2004-03-17 19:41:16 C 08 54 11.98 +14 06 14.6 c 113
2004-03-17 19:41:57 C 08 54 12.00 +14 06 14.5 c A35