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
2004-01-24 09:17:37 C 09 12 45.44 +13 34 23.0 18.5 c 704
2004-01-24 09:52:11 C 09 12 44.03 +13 34 27.6 18.3 d H72
2004-01-24 09:57:21 C 09 12 43.91 +13 34 21.9 17.5 d H72
2004-01-28 07:46:18 C 09 10 16.54 +13 35 28.2 c H41
2004-01-28 07:51:28 C 09 10 16.30 +13 35 27.9 c H41
2004-01-28 07:53:56 C 09 10 16.20 +13 35 28.0 c H41
2004-01-28 07:56:27 C 09 10 16.17 +13 35 27.8 c H41
2004-01-28 08:04:09 C 09 10 15.89 +13 35 27.6 c H41
2004-01-29 14:18:00 C 09 09 23.23 +13 36 18.2 o 379
2004-01-29 14:24:19 C 09 09 23.01 +13 36 18.7 o 379
2004-01-29 14:30:36 C 09 09 22.75 +13 36 18.5 o 379
2004-01-29 14:33:45 C 09 09 22.66 +13 36 18.9 o 379
2004-01-30 00:31:45 C 09 09 04.12 +13 36 33.4 c 204
2004-01-30 00:40:23 C 09 09 03.88 +13 36 34.3 c 204
2004-01-30 00:54:31 C 09 09 03.39 +13 36 34.7 c 204
2004-01-30 06:36:25 C 09 08 53.49 +13 36 50.6 17.2 c 704
2004-01-30 06:54:31 C 09 08 52.85 +13 36 51.2 17.6 c 704
2004-01-30 07:06:22 C 09 08 52.50 +13 36 52.1 c 691
2004-01-30 07:12:45 C 09 08 52.20 +13 36 51.8 17.8 c 704
2004-01-30 07:31:01 C 09 08 51.52 +13 36 52.6 17.7 c 704
2004-01-30 07:49:16 C 09 08 50.85 +13 36 53.3 17.7 c 704
2004-01-30 08:06:38 C 09 08 50.32 +13 36 54.3 c 691
2004-01-30 09:07:43 C 09 08 48.11 +13 36 56.3 c 691
2004-01-30 14:04:22 C 09 08 39.70 +13 37 05.8 o 379
2004-01-30 14:07:30 C 09 08 39.59 +13 37 05.9 o 379
2004-01-30 14:10:39 C 09 08 39.43 +13 37 05.7 o 379
2004-01-30 14:16:58 C 09 08 39.25 +13 37 06.2 o 379
2004-01-31 08:33:33 C 09 08 04.00 +13 37 48.7 c H41
2004-01-31 08:37:12 C 09 08 03.82 +13 37 47.7 c H41
2004-01-31 08:39:46 C 09 08 03.71 +13 37 48.1 c H41
2004-01-31 08:42:50 C 09 08 03.63 +13 37 49.0 c H41
2004-01-31 14:36:53 C 09 07 53.12 +13 38 02.9 o 379
2004-01-31 14:49:29 C 09 07 52.69 +13 38 03.5 o 379
2004-01-31 14:52:37 C 09 07 52.58 +13 38 03.9 o 379
2004-02-02 12:19:23 C 09 06 22.89 +13 40 14.2 17.9 c 608
2004-02-02 12:34:39 C 09 06 22.32 +13 40 14.8 18.0 c 608
2004-02-02 12:50:43 C 09 06 21.69 +13 40 15.5 17.8 c 608
2004-02-02 23:36:03 C 09 06 00.93 +13 40 38.4 o A16
2004-02-02 23:43:48 C 09 06 00.62 +13 40 40.3 o A16
2004-02-04 21:43:43 C 09 04 26.99 +13 43 14.1 o A16
2004-02-04 21:58:30 C 09 04 26.47 +13 43 14.6 o A16
2004-02-04 22:13:00 C 09 04 25.80 +13 43 15.6 o A16
2004-02-09 08:35:01 C 09 00 41.48 +13 50 20.5 m 333
2004-02-09 08:53:38 C 09 00 40.78 +13 50 21.5 m 333
2004-02-09 09:12:17 C 09 00 40.00 +13 50 22.7 m 333
2004-02-09 21:34:19 C 09 00 15.08 +13 51 10.9 r A16
2004-02-09 21:49:44 C 09 00 14.40 +13 51 12.1 r A16
2004-02-09 22:03:37 C 09 00 13.92 +13 51 12.2 r A16
2004-02-09 22:29:50 C 09 00 13.05 +13 51 16.4 r 170
2004-02-09 22:33:00 C 09 00 12.93 +13 51 16.7 r 170