85839 (1998 YO4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2481006912 ± 1.24e-08
Semi-major axis (a)1.6534926704 AU ± 9.96e-10
Inclination (i)9.31939239° ± 8.81e-07
Long. of Asc. Node (Ω)28.50072273° ± 2.80e-06
Arg. of Perihelion (ω)199.69071851° ± 2.99e-06
Mean Anomaly (M)97.04138343° ± 2.26e-06
Mean Motion (n)0.4635631070°/day ± 4.19e-10
Perihelion dist (q)1.24326000 AU ± 2.05e-08
Aphelion dist (Q)2.06372534 AU ± 2.05e-08
Orbital Period2.12619656 yr ± 1.92e-09
Physical Parameters
H (abs. magnitude)16.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.072″
Uncertainty0
Orbit TypeAmor
MOID0.239954 AU
Observations Used2510
Gaia Obs Used50
Oppositions12
Arc Total1993-2025
First Observation Used1993-04-25
Last Observation Used2025-11-08
Observations (3041)
Date Type RA Dec Mag Band Observatory
2010-02-06 08:48:33 C 11 28 15.22 +27 44 02.7 17.2 c 704
2010-02-06 09:06:42 C 11 28 14.91 +27 44 09.8 17.4 c 704
2010-02-06 09:24:41 C 11 28 14.54 +27 44 16.6 17.7 c 704
2010-02-07 23:57:19 C 11 27 37.30 +27 58 42.3 v B09
2010-02-08 00:00:25 C 11 27 37.22 +27 58 43.5 v B09
2010-02-08 00:03:30 C 11 27 37.12 +27 58 45.2 v B09
2010-02-08 04:07:31 C 11 27 31.75 +28 00 16.0 u 160
2010-02-08 04:09:42 C 11 27 31.70 +28 00 17.0 u 160
2010-02-08 04:11:52 C 11 27 31.66 +28 00 17.8 u 160
2010-02-15 07:10:42 C 11 22 48.03 +29 02 51.8 r 703
2010-02-15 07:20:44 C 11 22 47.64 +29 02 55.5 r 703
2010-02-15 07:30:43 C 11 22 47.20 +29 02 59.0 r 703
2010-02-15 07:40:42 C 11 22 46.81 +29 03 02.6 r 703
2010-02-26 22:00:59 C 11 08 53.37 +30 17 41.7 v B09
2010-03-02 21:02:28 C 11 02 48.07 +30 28 42.6 u A13
2010-03-02 21:32:49 C 11 02 45.95 +30 28 45.2 u A13
2010-03-04 11:29:49 C 11 00 10.76 +30 30 27.3 r 703
2010-03-04 11:35:13 C 11 00 10.40 +30 30 27.0 r 703
2010-03-04 11:40:37 C 11 00 10.00 +30 30 27.2 r 703
2010-03-04 11:46:01 C 11 00 09.61 +30 30 26.6 r 703
2010-03-04 20:50:35 C 10 59 34.25 +30 30 33.2 c 127
2010-03-04 21:04:46 C 10 59 33.20 +30 30 33.5 c 127
2010-03-04 21:12:16 C 10 59 32.68 +30 30 33.8 c 127
2010-03-04 21:22:19 C 10 59 31.96 +30 30 34.2 c 127
2010-03-05 00:27:31 C 10 59 18.66 +30 30 35.7 w J93
2010-03-05 00:33:36 C 10 59 18.26 +30 30 36.1 w J93
2010-03-05 00:39:42 C 10 59 17.83 +30 30 35.3 w J93
2010-03-05 01:36:18 C 10 59 13.44 +30 30 37.4 v 204
2010-03-05 02:28:06 C 10 59 09.70 +30 30 36.6 v 204
2010-03-05 03:14:47 C 10 59 06.36 +30 30 35.8 v 204
2010-03-06 22:27:17 C 10 56 08.11 +30 29 36.9 w J93
2010-03-06 22:39:29 C 10 56 07.17 +30 29 36.8 w J93
2010-03-06 22:45:33 C 10 56 06.70 +30 29 36.4 w J93
2010-03-12 22:09:28 C 10 46 03.31 +30 09 01.7 16.7 u 084
2010-03-13 00:22:46 C 10 45 53.69 +30 08 28.2 16.7 u 084
2010-03-13 02:57:32 C 10 45 42.76 +30 07 47.4 16.7 u 084
2010-03-14 01:34:43 C 10 44 09.26 +30 02 00.4 u 160
2010-03-14 01:36:53 C 10 44 09.12 +30 01 59.7 u 160
2010-03-14 01:39:04 C 10 44 08.95 +30 01 59.0 u 160
2010-03-14 04:20:59 C 10 43 59.44 +30 01 18.6 r 703
2010-03-14 04:31:49 C 10 43 58.62 +30 01 15.9 r 703
2010-03-14 04:42:42 C 10 43 57.82 +30 01 13.0 r 703
2010-03-14 04:53:35 C 10 43 57.00 +30 01 10.1 r 703
2010-03-14 20:17:45 C 10 42 54.22 +29 56 32.3 w J93
2010-03-14 20:20:49 C 10 42 54.00 +29 56 31.8 w J93
2010-03-14 20:23:52 C 10 42 53.73 +29 56 30.8 w J93
2010-03-15 00:13:05 C 10 42 37.05 +29 55 25.1 v 160
2010-03-15 00:15:16 C 10 42 36.88 +29 55 24.4 v 160
2010-03-15 00:17:28 C 10 42 36.74 +29 55 23.5 v 160
2010-03-15 20:05:56 C 10 41 17.92 +29 49 00.4 v 434