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
2004-02-11 05:51:13 C 08 59 07.50 +13 53 38.1 m 333
2004-02-11 06:11:15 C 08 59 06.70 +13 53 39.6 m 333
2004-02-11 06:33:57 C 08 59 05.78 +13 53 41.1 m 333
2004-02-11 06:42:31 C 08 59 05.39 +13 53 42.1 d 703
2004-02-11 06:56:56 C 08 59 04.85 +13 53 41.8 c 699
2004-02-11 06:58:38 C 08 59 04.91 +13 53 43.0 16.9 c 644
2004-02-11 07:02:17 C 08 59 04.60 +13 53 43.8 d 703
2004-02-11 07:21:57 C 08 59 03.81 +13 53 45.1 d 703
2004-02-11 07:26:05 C 08 59 03.64 +13 53 44.1 c 699
2004-02-11 07:31:33 C 08 59 03.57 +13 53 45.3 16.9 c 644
2004-02-11 07:41:43 C 08 59 02.97 +13 53 46.4 d 703
2004-02-11 07:55:14 C 08 59 02.47 +13 53 46.2 c 699
2004-02-11 08:21:06 C 08 59 01.58 +13 53 49.0 16.9 c 644
2004-02-11 08:24:19 C 08 59 01.32 +13 53 47.8 c 699
2004-02-12 22:07:42 C 08 57 44.32 +13 56 33.4 r A16
2004-02-12 22:23:08 C 08 57 43.65 +13 56 34.1 r A16
2004-02-13 07:14:21 C 08 57 24.99 +13 57 18.5 r H41
2004-02-13 07:19:18 C 08 57 24.80 +13 57 18.6 r H41
2004-02-13 07:22:46 C 08 57 24.72 +13 57 19.3 r H41
2004-02-13 07:28:05 C 08 57 23.50 +13 57 19.6 r H41
2004-02-13 23:11:36 C 08 56 53.70 +13 58 29.2 r J87
2004-02-13 23:14:47 C 08 56 53.60 +13 58 29.5 r J87
2004-02-13 23:17:56 C 08 56 53.46 +13 58 29.7 r J87
2004-02-14 21:38:47 C 08 56 09.53 +14 00 08.4 r 185
2004-02-14 21:46:28 C 08 56 09.22 +14 00 08.8 r 185
2004-02-14 21:50:55 C 08 56 09.07 +14 00 09.3 r 185
2004-02-14 22:02:47 C 08 56 08.63 +14 00 10.2 r 185
2004-02-15 01:58:30 C 08 55 59.83 +14 00 27.4 17.6 r 130
2004-02-15 02:02:53 C 08 55 59.70 +14 00 27.9 17.4 r 130
2004-02-15 02:07:16 C 08 55 59.55 +14 00 28.3 17.6 r 130
2004-02-15 02:11:37 C 08 55 59.39 +14 00 28.9 17.8 r 130
2004-02-16 21:36:48 C 08 54 38.35 +14 03 43.3 r A16
2004-02-16 21:38:20 C 08 54 38.29 +14 03 44.9 r A16
2004-02-16 21:46:03 C 08 54 37.99 +14 03 46.0 r A16
2004-02-16 21:50:39 C 08 54 37.82 +14 03 46.7 r A16
2004-02-16 21:58:21 C 08 54 37.53 +14 03 47.0 r A16
2004-02-17 04:28:48 C 08 54 26.34 +14 04 20.2 16.7 c 644
2004-02-17 04:57:37 C 08 54 25.32 +14 04 22.7 16.9 c 644
2004-02-17 05:29:43 C 08 54 24.17 +14 04 25.3 16.6 c 644
2004-02-17 06:27:44 C 08 54 21.86 +14 04 30.3 17.4 c 704
2004-02-17 06:44:40 C 08 54 21.24 +14 04 31.4 17.8 c 704
2004-02-17 07:01:43 C 08 54 20.63 +14 04 32.6 17.7 c 704
2004-02-17 07:18:46 C 08 54 20.00 +14 04 33.8 17.4 c 704
2004-02-17 07:35:55 C 08 54 19.38 +14 04 34.9 17.5 c 704
2004-02-18 06:38:34 C 08 53 38.35 +14 06 14.8 c H41
2004-02-18 06:43:23 C 08 53 38.24 +14 06 13.8 c H41
2004-02-18 08:18:36 C 08 53 36.40 +14 06 28.5 17.6 c 608
2004-02-18 08:33:41 C 08 53 35.85 +14 06 29.8 17.7 c 608
2004-02-18 08:49:03 C 08 53 35.33 +14 06 30.8 17.6 c 608
2004-02-19 04:56:42 C 08 53 00.61 +14 07 53.4 17.0 d H72