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
2011-11-30 15:28:47 C 08 26 03.610 +34 13 30.10 L F51
2011-12-25 07:37:35 C 08 19 51.34 +38 47 52.2 r 703
2011-12-25 07:49:53 C 08 19 50.88 +38 47 59.1 r 703
2011-12-25 08:02:09 C 08 19 50.34 +38 48 05.2 r 703
2011-12-25 08:14:27 C 08 19 49.69 +38 48 11.0 r 703
2011-12-28 02:03:36 C 08 16 55.07 +39 22 05.6 t 130
2011-12-28 02:06:30 C 08 16 54.90 +39 22 07.1 t 130
2011-12-28 02:09:23 C 08 16 54.77 +39 22 08.7 t 130
2011-12-28 02:12:17 C 08 16 54.62 +39 22 10.1 t 130
2011-12-30 09:33:52 C 08 14 06.46 +39 50 20.0 r 703
2011-12-30 09:39:16 C 08 14 06.10 +39 50 22.6 r 703
2011-12-30 09:44:40 C 08 14 05.82 +39 50 25.8 r 703
2011-12-30 09:50:05 C 08 14 05.53 +39 50 27.9 r 703
2011-12-30 09:55:34 C 08 14 05.20 +39 50 30.3 r 703
2011-12-30 10:52:39 C 08 14 01.89 +39 50 59.8 r 703
2011-12-30 10:58:33 C 08 14 01.60 +39 51 02.0 r 703
2011-12-30 11:04:23 C 08 14 01.28 +39 51 05.4 r 703
2011-12-30 11:10:14 C 08 14 00.92 +39 51 08.1 r 703
2012-01-02 14:22:44 C 08 09 41.335 +40 28 12.09 L F51
2012-01-02 14:40:50 C 08 09 40.173 +40 28 20.46 L F51
2012-01-12 23:04:47 C 07 51 51.05 +42 12 25.7 c A24
2012-01-12 23:05:49 C 07 51 50.98 +42 12 26.2 c A24
2012-01-15 06:48:51 C 07 47 17.50 +42 30 13.4 18.1 c 704
2012-01-15 07:26:20 C 07 47 14.33 +42 30 24.8 19.2 c 704
2012-01-15 07:44:56 C 07 47 12.68 +42 30 30.2 18.7 c 704
2012-01-15 23:10:37 C 07 45 55.67 +42 34 55.3 c A24
2012-01-15 23:11:41 C 07 45 55.61 +42 34 55.6 c A24
2012-01-21 22:28:07 C 07 33 45.80 +43 06 06.2 c A24
2012-01-21 22:29:09 C 07 33 45.65 +43 06 07.3 c A24
2012-01-22 20:55:30 C 07 31 51.54 +43 09 13.6 c A24
2012-01-22 20:56:32 C 07 31 51.37 +43 09 14.3 c A24
2012-01-23 21:34:26 C 07 29 46.34 +43 12 07.6 c A24
2012-01-23 21:35:28 C 07 29 46.23 +43 12 07.5 c A24
2012-01-24 22:18:21 C 07 27 41.81 +43 14 24.7 c A24
2012-01-24 22:19:24 C 07 27 41.64 +43 14 24.8 c A24
2012-01-25 21:18:00 C 07 25 47.36 +43 16 01.6 c A24
2012-01-25 21:19:03 C 07 25 47.25 +43 16 01.4 c A24
2012-01-25 22:41:04 C 07 25 40.23 +43 16 06.6 c A24
2012-01-25 22:42:06 C 07 25 40.14 +43 16 06.4 c A24
2012-01-26 21:04:39 C 07 23 50.33 +43 17 08.2 c A24
2012-01-26 21:05:41 C 07 23 50.25 +43 17 08.7 c A24
2012-01-26 21:44:18 C 07 23 46.94 +43 17 10.2 r 106
2012-01-26 22:06:35 C 07 23 45.08 +43 17 10.6 c A24
2012-01-26 22:06:42 C 07 23 45.04 +43 17 10.9 r 106
2012-01-26 22:07:37 C 07 23 45.01 +43 17 11.1 c A24
2012-01-26 22:29:02 C 07 23 43.15 +43 17 11.9 r 106
2012-01-26 22:51:26 C 07 23 41.26 +43 17 12.3 r 106
2012-01-30 01:13:13 C 07 17 48.20 +43 17 06.9 u I15
2012-01-30 01:23:49 C 07 17 47.37 +43 17 06.5 u I15
2012-01-30 01:30:11 C 07 17 46.89 +43 17 06.5 u I15