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
2014-01-02 11:34:10 C 12 00 03.43 -01 34 56.9 q G96
2014-01-11 10:20:13 C 12 24 06.65 -04 23 10.7 q 703
2014-01-11 10:32:48 C 12 24 07.92 -04 23 18.9 q 703
2014-01-11 10:45:26 C 12 24 09.38 -04 23 31.7 q 703
2014-01-11 10:58:02 C 12 24 10.64 -04 23 40.7 q 703
2014-01-28 10:38:11 C 13 10 22.21 -09 37 30.2 q 703
2014-01-28 10:49:11 C 13 10 23.41 -09 37 38.6 q 703
2014-01-28 11:00:12 C 13 10 24.68 -09 37 47.2 q 703
2014-02-11 10:52:14 C 13 48 04.59 -13 34 39.4 q 703
2014-02-11 11:11:30 C 13 48 06.65 -13 34 52.5 q 703
2014-02-11 11:21:08 C 13 48 07.66 -13 34 57.7 q 703
2014-03-13 13:13:12 C 14 59 04.727 -19 44 00.79 L F51
2014-03-13 13:29:02 C 14 59 05.880 -19 44 06.17 L F51
2014-03-13 13:45:17 C 14 59 07.075 -19 44 11.76 L F51
2014-03-13 14:01:07 C 14 59 08.238 -19 44 17.34 L F51
2014-03-15 07:26:12 C 15 02 21.37 -19 57 41.6 r Y00
2014-03-15 07:37:06 C 15 02 22.10 -19 57 44.4 r Y00
2014-03-15 07:47:57 C 15 02 22.85 -19 57 47.6 r Y00
2014-03-23 10:24:38 C 15 15 41.54 -20 50 17.4 q 703
2014-03-23 10:36:41 C 15 15 42.18 -20 50 19.8 q 703
2014-03-23 10:48:45 C 15 15 42.85 -20 50 22.6 q 703
2014-03-23 11:00:49 C 15 15 43.55 -20 50 27.5 q 703
2014-04-08 06:52:52 C 15 31 07.98 -21 35 39.2 q H15
2014-04-08 07:07:35 C 15 31 08.20 -21 35 39.6 q H15
2014-04-08 07:23:36 C 15 31 08.46 -21 35 40.0 q H15
2014-04-08 07:37:52 C 15 31 08.71 -21 35 40.9 q H15
2014-04-28 08:14:32 C 15 30 03.21 -20 56 42.3 q 703
2014-04-28 08:23:15 C 15 30 03.04 -20 56 41.1 q 703
2014-04-30 10:55:06 C 15 28 55.019 -20 47 42.40 L F51
2014-04-30 11:12:14 C 15 28 54.492 -20 47 39.32 L F51
2014-04-30 11:46:26 C 15 28 53.437 -20 47 32.99 L F51
2014-05-06 22:17:51 C 15 24 50.73 -20 17 05.8 u 089
2014-05-06 22:20:35 C 15 24 50.63 -20 17 06.0 u 089
2014-05-06 22:23:18 C 15 24 50.54 -20 17 05.7 u 089
2014-05-06 22:26:01 C 15 24 50.49 -20 17 05.2 u 089
2014-05-06 22:28:44 C 15 24 50.35 -20 17 03.6 u 089
2014-05-06 22:31:27 C 15 24 50.31 -20 17 03.9 u 089
2014-05-06 22:34:10 C 15 24 50.17 -20 17 02.9 u 089
2014-05-06 22:36:53 C 15 24 50.10 -20 17 02.3 u 089
2014-05-06 22:42:19 C 15 24 49.90 -20 17 01.2 u 089
2014-05-10 11:11:41 C 15 22 27.712 -19 59 02.90 L F51
2014-05-10 11:29:09 C 15 22 27.107 -19 58 59.09 L F51
2014-05-10 12:04:00 C 15 22 25.907 -19 58 51.29 L F51
2014-05-20 09:07:43 C 15 16 20.269 -19 09 57.13 L F51
2014-05-20 09:24:02 C 15 16 19.807 -19 09 54.07 L F51
2014-05-20 09:40:17 C 15 16 19.346 -19 09 50.99 L F51
2014-05-20 09:56:32 C 15 16 18.885 -19 09 47.86 L F51
2014-05-27 06:11:55 C 15 13 18.58 -18 41 14.9 q G96
2014-05-27 06:19:16 C 15 13 18.45 -18 41 13.8 q G96
2014-05-27 06:30:41 C 15 13 18.23 -18 41 12.2 q G96