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
1999-04-05 12:01:15 C 07 50 52.15 +19 04 56.1 360
1999-04-05 12:08:00 C 07 50 52.82 +19 04 54.3 360
1999-04-05 12:15:00 C 07 50 53.60 +19 04 52.4 360
1999-05-24 04:16:37 C 10 14 54.54 +09 36 49.7 i 693
1999-05-24 04:18:27 C 10 14 54.77 +09 36 48.4 i 693
1999-05-24 04:20:16 C 10 14 55.00 +09 36 47.3 i 693
1999-07-02 09:49:28 C 12 15 59.21 -02 16 20.4 413
1999-07-02 09:57:53 C 12 16 00.28 -02 16 26.8 413
1999-08-02 11:06:52 C 13 46 13.42 -11 03 36.5 413
1999-08-02 11:10:51 C 13 46 13.91 -11 03 38.8 413
2002-08-11 10:10:55 C 22 11 11.57 -09 28 03.6 o 644
2002-08-11 10:26:18 C 22 11 10.75 -09 28 08.2 o 644
2002-08-11 10:41:46 C 22 11 09.93 -09 28 12.5 o 644
2002-08-13 07:39:38 C 22 08 49.84 -09 40 44.9 d 291
2002-08-13 08:10:22 C 22 08 48.20 -09 40 52.7 d 291
2002-08-13 08:39:42 C 22 08 46.58 -09 41 00.9 d 291
2002-08-17 10:33:18 C 22 03 36.06 -10 08 45.9 o 644
2003-11-29 10:24:49 C 08 44 56.29 +17 24 52.6 c 711
2003-11-29 10:39:24 C 08 44 57.00 +17 24 47.2 c 711
2003-11-29 10:53:59 C 08 44 57.82 +17 24 44.2 c 711
2003-12-18 11:59:10 C 09 06 30.31 +15 27 42.8 19.6 c 644
2003-12-18 12:32:22 C 09 06 31.42 +15 27 34.9 19.5 c 644
2003-12-18 13:01:56 C 09 06 32.39 +15 27 27.8 19.5 c 644
2003-12-21 09:47:03 C 09 08 53.81 +15 11 55.2 19.4 c 704
2003-12-21 10:06:03 C 09 08 54.43 +15 11 52.6 19.6 c 704
2003-12-21 10:24:52 C 09 08 54.94 +15 11 47.1 20.1 c 704
2003-12-21 10:43:56 C 09 08 55.43 +15 11 43.9 19.9 c 704
2004-01-11 08:06:48 C 09 16 52.94 +13 49 37.4 c 670
2004-01-11 08:43:11 C 09 16 52.65 +13 49 34.3 c 670
2004-01-21 07:27:59 C 09 14 21.15 +13 35 14.8 17.7 c 704
2004-01-21 07:46:59 C 09 14 20.65 +13 35 14.7 18.2 c 704
2004-01-21 08:05:57 C 09 14 20.22 +13 35 13.8 18.4 c 704
2004-01-21 08:24:30 C 09 14 19.73 +13 35 13.5 18.4 c 704
2004-01-21 09:01:55 C 09 14 18.80 +13 35 13.6 c 711
2004-01-21 09:07:31 C 09 14 18.66 +13 35 13.3 c 711
2004-01-21 09:13:09 C 09 14 18.52 +13 35 13.4 c 711
2004-01-23 07:28:06 C 09 13 21.32 +13 34 30.1 c H41
2004-01-23 07:31:46 C 09 13 21.32 +13 34 28.3 c H41
2004-01-23 07:35:31 C 09 13 21.19 +13 34 29.3 c H41
2004-01-23 07:38:11 C 09 13 21.06 +13 34 28.9 c H41
2004-01-24 01:16:11 C 09 12 56.99 +13 34 18.0 r A21
2004-01-24 01:32:17 C 09 12 56.56 +13 34 18.0 r A21
2004-01-24 02:00:37 C 09 12 55.77 +13 34 17.8 r A21
2004-01-24 08:05:10 C 09 12 47.66 +13 34 23.3 18.2 c 704
2004-01-24 08:12:03 C 09 12 47.21 +13 34 22.3 c H41
2004-01-24 08:15:24 C 09 12 47.01 +13 34 21.9 c H41
2004-01-24 08:18:23 C 09 12 46.91 +13 34 21.0 c H41
2004-01-24 08:23:18 C 09 12 47.10 +13 34 23.2 18.6 c 704
2004-01-24 08:41:30 C 09 12 46.61 +13 34 22.6 18.5 c 704
2004-01-24 08:59:39 C 09 12 46.08 +13 34 22.4 18.7 c 704