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
2010-04-06 22:28:37 C 10 17 35.49 +24 01 38.1 u 160
2010-04-06 22:37:32 C 10 17 34.90 +24 01 27.6 17.1 u C20
2010-04-06 22:41:46 C 10 17 34.80 +24 01 23.7 17.2 u C20
2010-04-07 23:45:15 C 10 17 12.48 +23 38 14.1 w J93
2010-04-07 23:48:22 C 10 17 12.45 +23 38 11.2 w J93
2010-04-07 23:51:30 C 10 17 12.40 +23 38 08.5 w J93
2010-04-09 21:31:51 C 10 16 42.65 +22 54 53.5 w I99
2010-04-09 21:44:15 C 10 16 42.50 +22 54 41.7 w I99
2010-04-09 21:57:08 C 10 16 42.31 +22 54 29.0 w I99
2010-04-09 22:32:41 C 10 16 41.65 +22 53 52.7 u 160
2010-04-09 22:34:45 C 10 16 41.60 +22 53 50.6 u 160
2010-04-09 22:37:04 C 10 16 41.53 +22 53 48.5 u 160
2010-04-10 22:00:42 C 10 16 32.47 +22 31 09.4 u J51
2010-04-10 22:15:45 C 10 16 32.32 +22 30 55.2 u J51
2010-04-10 22:30:48 C 10 16 32.19 +22 30 40.6 u J51
2010-04-11 20:49:42 C 10 16 26.29 +22 08 29.1 17.6 u 084
2010-04-12 21:25:53 C 10 16 23.85 +21 43 51.7 16.6 u 084
2010-04-12 21:29:04 C 10 16 23.84 +21 43 48.5 16.6 u 084
2010-04-13 20:54:16 C 10 16 25.60 +21 20 04.2 16.3 o 084
2010-04-13 20:57:25 C 10 16 25.57 +21 20 01.1 17.0 o 084
2010-04-14 20:17:26 C 10 16 31.00 +20 56 02.6 16.5 u 084
2010-04-14 20:20:35 C 10 16 30.99 +20 55 59.5 16.5 u 084
2010-04-16 20:48:46 C 10 16 53.16 +20 05 22.8 16.8 u C20
2010-04-16 20:53:00 C 10 16 53.20 +20 05 18.3 16.8 u C20
2010-04-16 22:19:52 C 10 16 54.69 +20 03 52.8 w J24
2010-04-16 22:34:05 C 10 16 54.73 +20 03 37.4 w J24
2010-04-16 22:39:45 C 10 16 54.76 +20 03 31.1 w J24
2010-04-17 04:53:42 C 10 16 58.87 +19 56 54.6 r 703
2010-04-17 05:04:01 C 10 16 58.94 +19 56 43.5 r 703
2010-04-17 05:14:27 C 10 16 59.01 +19 56 32.2 r 703
2010-04-17 05:24:50 C 10 16 59.08 +19 56 21.3 r 703
2010-04-17 22:30:03 C 10 17 11.15 +19 38 02.7 17.0 u C20
2010-04-17 22:34:18 C 10 17 11.19 +19 37 57.9 17.0 u C20
2010-04-18 20:05:02 C 10 17 30.37 +19 14 50.9 17.0 u 084
2010-04-18 20:08:11 C 10 17 30.42 +19 14 47.6 16.9 u 084
2010-04-18 22:27:08 C 10 17 32.23 +19 12 21.2 u 160
2010-04-18 22:29:18 C 10 17 32.26 +19 12 18.9 u 160
2010-04-18 22:31:28 C 10 17 32.27 +19 12 16.3 u 160
2010-04-19 20:28:01 C 10 17 54.48 +18 48 29.4 17.1 u C20
2010-04-19 20:32:16 C 10 17 54.55 +18 48 24.8 17.1 u C20
2010-04-20 19:55:32 C 10 18 21.65 +18 22 51.6 16.9 u C20
2010-04-20 19:59:45 C 10 18 21.71 +18 22 46.9 16.9 u C20
2010-04-21 20:20:40 C 10 18 53.54 +17 55 53.7 17.6 u 084
2010-04-24 20:00:06 C 10 20 46.95 +16 35 44.2 17.1 o 084
2010-04-24 20:03:15 C 10 20 47.03 +16 35 40.0 17.6 o 084
2010-04-25 20:22:50 C 10 21 32.08 +16 08 04.8 17.3 u 084
2010-04-25 20:26:00 C 10 21 32.18 +16 08 02.0 17.3 u 084
2010-04-25 21:40:05 C 10 21 34.81 +16 06 46.7 w J51
2010-04-25 21:52:11 C 10 21 35.15 +16 06 32.1 w J51
2010-04-25 22:04:18 C 10 21 35.49 +16 06 18.3 w J51