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
2019-07-03 05:41:13 C 16 53 11.82 -21 55 12.6 U I41
2019-07-03 05:57:27 C 16 53 11.49 -21 55 11.7 U I41
2019-07-03 06:16:51 C 16 53 11.09 -21 55 10.5 U I41
2019-07-03 06:30:59 C 16 53 10.80 -21 55 09.7 U I41
2019-07-06 05:09:30 C 16 52 10.18 -21 51 24.8 U I41
2019-07-06 05:36:21 C 16 52 09.77 -21 51 23.7 U I41
2019-07-06 06:08:04 C 16 52 09.28 -21 51 22.1 U I41
2019-07-06 07:02:45 C 16 52 08.49 -21 51 19.5 U I41
2019-07-09 06:38:53 C 16 51 31.31 -21 48 25.5 U I41
2019-07-09 06:48:14 C 16 51 31.23 -21 48 25.1 U I41
2019-07-09 06:57:46 C 16 51 31.15 -21 48 24.7 U I41
2019-07-09 07:09:55 C 16 51 31.03 -21 48 24.2 U I41
2019-07-10 05:40:50 C 16 51 24.56 -21 47 40.6 U I41
2019-07-10 06:52:24 C 16 51 24.04 -21 47 38.0 U I41
2020-10-14 07:05:25 C 03 15 38.46 +19 05 11.5 V G96
2020-10-14 07:12:48 C 03 15 38.19 +19 05 10.0 V G96
2020-10-14 07:20:10 C 03 15 37.90 +19 05 09.5 V G96
2020-10-15 14:19:08 C 03 14 30.014 +19 00 46.82 U F51
2020-10-15 14:37:24 C 03 14 29.311 +19 00 44.25 U F51
2020-10-15 14:55:38 C 03 14 28.600 +19 00 41.30 U F51
2020-10-23 09:01:21 C 03 06 33.19 +18 28 27.7 V G96
2020-10-23 09:08:40 C 03 06 32.84 +18 28 25.9 V G96
2020-10-23 09:15:57 C 03 06 32.46 +18 28 24.8 V G96
2020-10-23 09:23:15 C 03 06 32.10 +18 28 23.3 V G96
2020-10-25 13:25:17 C 03 03 59.837 +18 17 41.17 U F51
2020-10-25 13:44:55 C 03 03 58.817 +18 17 36.95 U F51
2020-10-25 14:04:30 C 03 03 57.819 +18 17 32.65 U F51
2020-11-05 08:00:47 C 02 49 57.96 +17 14 54.5 V G96
2020-11-05 08:18:21 C 02 49 56.92 +17 14 49.5 V G96
2020-11-05 08:25:46 C 02 49 56.49 +17 14 47.3 V G96
2020-11-05 08:33:18 C 02 49 56.02 +17 14 45.4 V G96
2020-11-09 16:07:20 C 02 43 57.05 +16 46 14.9 q D29
2020-11-09 16:48:04 C 02 43 54.58 +16 46 02.5 q D29
2020-11-14 05:52:37 C 02 37 37.97 +16 14 58.5 V G96
2020-11-14 06:00:03 C 02 37 37.57 +16 14 56.2 V G96
2020-11-14 06:07:29 C 02 37 37.12 +16 14 53.8 V G96
2020-11-14 06:14:56 C 02 37 36.71 +16 14 52.1 V G96
2020-11-24 02:37:34 C 02 24 57.14 +15 08 25.5 V G96
2020-11-24 02:45:38 C 02 24 56.78 +15 08 22.6 V G96
2020-11-24 02:53:41 C 02 24 56.42 +15 08 21.0 V G96
2020-11-24 03:01:44 C 02 24 55.90 +15 08 18.7 V G96
2020-12-11 04:57:06 C 02 09 37.737 +13 39 02.16 U F52
2020-12-11 05:28:55 C 02 09 36.911 +13 38 56.55 U F52
2020-12-11 05:44:49 C 02 09 36.517 +13 38 54.00 U F52
2021-01-08 07:35:24 C 02 09 16.860 +13 18 25.30 U F51
2021-01-08 07:49:54 C 02 09 17.152 +13 18 26.58 U F51
2021-01-08 08:04:20 C 02 09 17.456 +13 18 27.70 U F51
2022-09-02 12:18:17 C 23 35 05.521 -00 55 20.52 U F51
2022-09-02 12:47:20 C 23 35 04.094 -00 55 29.24 U F51
2022-09-02 13:10:46 C 23 35 02.949 -00 55 36.25 U F51