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
2022-09-02 13:28:42 C 23 35 02.076 -00 55 41.50 U F51
2022-09-14 11:22:00 C 23 20 59.236 -02 25 37.20 U F52
2022-09-14 11:38:52 C 23 20 58.363 -02 25 42.74 U F52
2022-09-14 11:55:28 C 23 20 57.526 -02 25 47.82 U F52
2022-09-14 12:12:10 C 23 20 56.670 -02 25 53.16 U F52
2022-09-17 07:31:46 C 23 17 37.172 -02 47 31.81 V G96
2022-09-17 07:40:32 C 23 17 36.827 -02 47 34.80 V G96
2022-09-17 07:49:17 C 23 17 36.438 -02 47 37.61 V G96
2022-09-17 07:58:03 C 23 17 35.995 -02 47 40.38 V G96
2022-09-18 08:37:00 C 23 16 23.937 -02 55 30.83 U F52
2022-09-18 09:06:21 C 23 16 22.457 -02 55 40.14 U F52
2022-09-18 09:21:00 C 23 16 21.694 -02 55 44.67 U F52
2022-09-21 09:26:56 C 23 12 53.840 -03 18 27.14 U F51
2022-09-21 09:45:11 C 23 12 52.955 -03 18 32.75 U F51
2022-09-21 10:03:31 C 23 12 52.048 -03 18 38.68 U F51
2022-09-21 10:21:52 C 23 12 51.151 -03 18 44.20 U F51
2022-09-28 05:04:47 C 23 05 31.286 -04 07 21.25 V G96
2022-09-28 05:12:14 C 23 05 30.919 -04 07 23.02 V G96
2022-09-28 05:19:42 C 23 05 30.635 -04 07 25.50 V G96
2022-09-28 05:27:09 C 23 05 30.286 -04 07 27.84 V G96
2022-10-18 06:48:19 C 22 50 20.332 -05 52 29.94 U F51
2022-10-18 07:06:25 C 22 50 19.958 -05 52 32.67 U F51
2022-10-18 07:24:40 C 22 50 19.589 -05 52 35.32 U F51
2023-11-13 11:16:01 C 11 03 48.539 +05 15 10.48 V V00
2023-11-13 11:23:58 C 11 03 49.504 +05 15 04.54 V V00
2023-11-13 11:31:52 C 11 03 50.501 +05 14 58.13 V V00
2023-11-13 11:39:48 C 11 03 51.487 +05 14 51.07 V V00
2025-10-02 10:52:43 C 03 53 58.723 +21 07 38.37 X F52
2025-10-02 11:11:13 C 03 53 58.635 +21 07 38.49 X F52
2025-10-02 11:29:45 C 03 53 58.526 +21 07 38.30 X F52
2025-10-02 11:48:17 C 03 53 58.420 +21 07 38.32 X F52
2025-10-27 06:50:14 C 03 39 50.846 +20 21 28.87 V G96
2025-10-27 06:57:38 C 03 39 50.540 +20 21 27.79 V G96
2025-10-27 07:05:01 C 03 39 50.209 +20 21 26.78 V G96
2025-10-27 07:12:24 C 03 39 49.885 +20 21 25.78 V G96
2025-10-28 19:23:49 C 03 38 12.77 +20 15 44.4 V D29
2025-10-28 20:04:33 C 03 38 10.85 +20 15 37.2 V D29
2025-11-10 12:57:27 C 03 22 05.211 +19 14 48.44 X F51
2025-11-10 13:15:08 C 03 22 04.148 +19 14 44.20 X F51
2025-11-10 13:32:47 C 03 22 03.090 +19 14 39.89 X F51
2025-11-10 13:50:26 C 03 22 02.032 +19 14 35.61 X F51
2025-11-11 13:03:29 C 03 20 41.20 +19 09 05.2 V D29
2025-11-11 13:23:50 C 03 20 39.90 +19 08 59.6 V D29
2025-11-11 13:25:07 C 03 20 39.88 +19 09 00.5 V D29
2025-11-11 13:44:12 C 03 20 38.72 +19 08 55.6 V D29
2025-11-11 13:45:28 C 03 20 38.66 +19 08 55.7 V D29
2025-11-12 12:44:02 C 03 19 17.25 +19 03 23.2 V D29
2025-11-12 13:04:23 C 03 19 16.08 +19 03 18.6 V D29
2025-11-12 13:24:45 C 03 19 14.84 +19 03 14.0 V D29
2025-11-13 15:11:10 C 03 17 42.72 +18 56 56.0 V D29