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
2010-05-15 03:47:51 C 10 44 56.59 +06 58 43.6 17.9 c 704
2010-05-15 04:01:52 C 10 44 57.54 +06 58 26.4 18.2 c 704
2010-05-15 04:02:34 C 10 44 57.53 +06 58 24.9 17.9 c 704
2010-05-15 04:16:26 C 10 44 58.46 +06 58 08.5 18.2 c 704
2010-05-15 04:17:08 C 10 44 58.53 +06 58 08.1 17.9 c 704
2010-05-15 04:30:50 C 10 44 59.35 +06 57 51.4 18.0 c 704
2010-05-15 04:31:33 C 10 44 59.45 +06 57 50.7 18.3 c 704
2010-06-05 04:31:58 C 11 25 39.43 -03 21 11.9 r 703
2010-06-05 04:42:35 C 11 25 40.40 -03 21 24.7 r 703
2010-06-05 05:04:03 C 11 25 42.34 -03 21 50.8 r 703
2010-06-16 22:52:24 S 11 53 36.97 -09 01 21.9 L C51
2010-06-17 02:02:55 S 11 53 56.99 -09 05 07.1 L C51
2010-06-17 05:13:26 S 11 54 17.01 -09 08 52.8 L C51
2010-06-17 08:23:57 S 11 54 37.07 -09 12 38.0 L C51
2010-06-17 11:34:28 S 11 54 57.15 -09 16 23.3 L C51
2010-06-17 14:44:59 S 11 55 17.23 -09 20 08.8 L C51
2010-06-17 17:55:30 S 11 55 37.36 -09 23 53.3 L C51
2010-06-17 21:06:01 S 11 55 57.60 -09 27 38.0 L C51
2010-06-18 00:16:21 S 11 56 17.67 -09 31 22.5 L C51
2010-06-18 00:16:32 S 11 56 17.69 -09 31 23.2 L C51
2010-06-18 03:26:52 S 11 56 37.89 -09 35 07.4 L C51
2010-06-18 06:37:23 S 11 56 58.10 -09 38 52.0 L C51
2010-06-18 09:47:54 S 11 57 18.36 -09 42 36.5 L C51
2010-06-18 12:58:25 S 11 57 38.61 -09 46 20.8 L C51
2010-06-18 14:33:46 S 11 57 48.80 -09 48 13.2 L C51
2010-06-18 16:08:56 S 11 57 58.91 -09 50 05.0 L C51
2010-06-18 17:44:07 S 11 58 09.09 -09 51 56.7 L C51
2010-06-18 17:44:18 S 11 58 09.11 -09 51 57.6 L C51
2010-06-18 19:19:28 S 11 58 19.24 -09 53 48.3 L C51
2010-06-18 20:54:37 S 11 58 29.407 -09 55 41.05 L C51
2010-06-19 04:51:01 S 11 59 20.352 -10 05 00.02 L C51
2010-06-19 06:26:11 S 11 59 30.540 -10 06 52.49 L C51
2010-06-26 17:49:24 S 12 19 21.29 -13 33 32.6 C51
2010-06-26 20:59:55 S 12 19 43.034 -13 37 07.57 L C51
2010-06-27 00:10:26 S 12 20 04.78 -13 40 42.3 C51
2010-06-27 03:20:57 S 12 20 26.56 -13 44 16.8 C51
2010-06-27 06:31:28 S 12 20 48.38 -13 47 51.3 C51
2010-06-27 09:42:00 S 12 21 10.207 -13 51 25.63 L C51
2010-06-27 12:52:31 S 12 21 32.06 -13 54 59.6 C51
2010-06-27 16:03:01 S 12 21 53.92 -13 58 33.5 C51
2010-06-27 19:13:22 S 12 22 15.792 -14 02 06.86 L C51
2010-06-27 19:13:33 S 12 22 15.797 -14 02 07.22 L C51
2010-06-27 22:23:53 S 12 22 37.718 -14 05 40.31 L C51
2010-06-28 01:34:24 S 12 22 59.63 -14 09 13.7 C51
2010-06-28 04:44:55 S 12 23 21.60 -14 12 46.6 C51
2010-06-28 07:55:26 S 12 23 43.57 -14 16 19.8 C51
2010-06-28 11:05:57 S 12 24 05.58 -14 19 52.7 L C51
2010-06-28 14:16:28 S 12 24 27.62 -14 23 25.1 L C51
2010-06-28 15:51:38 S 12 24 38.64 -14 25 10.8 L C51
2010-06-28 17:26:59 S 12 24 49.67 -14 26 57.5 L C51