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
2017-11-02 00:27:14 C 02 58 31.18 +22 00 22.3 18.4 u J43
2017-11-02 00:40:57 C 02 58 30.22 +22 00 21.8 18.6 u J43
2017-11-02 00:54:44 C 02 58 29.24 +22 00 21.3 18.7 u J43
2017-11-02 01:08:30 C 02 58 28.28 +22 00 20.4 18.5 u J43
2017-11-06 11:01:29 C 02 51 10.01 +21 54 42.8 U T05
2017-11-06 11:05:33 C 02 51 09.74 +21 54 42.2 U T05
2017-11-06 11:16:37 C 02 51 08.96 +21 54 40.8 U T05
2017-11-06 11:20:23 C 02 51 08.72 +21 54 40.3 U T05
2017-11-06 11:40:05 C 02 51 07.19 +21 54 40.0 U T05
2017-11-08 02:07:09 C 02 48 27.04 +21 51 48.1 q Z38
2017-11-08 14:31:18 C 02 47 35.83 +21 50 50.3 q D29
2017-11-08 14:51:39 C 02 47 34.40 +21 50 48.7 q D29
2017-11-08 15:12:02 C 02 47 32.86 +21 50 47.5 q D29
2017-11-09 23:33:30 C 02 45 18.63 +21 47 58.2 q Z38
2017-11-13 10:31:52 C 02 39 38.224 +21 39 58.29 L F51
2017-11-13 10:52:02 C 02 39 36.818 +21 39 56.09 L F51
2017-11-13 11:12:20 C 02 39 35.406 +21 39 53.84 L F51
2017-11-13 21:29:08 C 02 38 54.34 +21 38 47.4 q Z38
2017-11-14 05:42:18 C 02 38 21.15 +21 37 53.3 U G96
2017-11-14 05:48:23 C 02 38 20.73 +21 37 52.7 U G96
2017-11-14 05:54:27 C 02 38 20.30 +21 37 52.0 U G96
2017-11-14 06:00:31 C 02 38 19.89 +21 37 51.3 U G96
2017-11-14 06:26:57 C 02 38 18.09 +21 37 48.3 U 703
2017-11-14 06:35:08 C 02 38 17.48 +21 37 47.3 U 703
2017-11-14 06:43:18 C 02 38 16.94 +21 37 46.9 U 703
2017-11-14 06:51:27 C 02 38 16.30 +21 37 45.7 U 703
2017-11-14 10:20:49 C 02 38 02.30 +21 37 24.1 U T05
2017-11-14 10:21:29 C 02 38 02.16 +21 37 24.3 U T05
2017-11-14 10:32:19 C 02 38 01.53 +21 37 22.6 U T05
2017-11-14 10:35:36 C 02 38 01.27 +21 37 22.4 U T05
2017-11-14 21:20:26 C 02 37 18.84 +21 36 10.8 q Z38
2017-11-14 22:47:53 C 02 37 12.75 +21 35 58.2 q Z38
2017-11-16 09:52:44 C 02 34 53.96 +21 32 01.0 U T08
2017-11-16 10:04:39 C 02 34 53.26 +21 31 59.7 U T08
2017-11-16 10:14:07 C 02 34 52.53 +21 31 59.3 U T08
2017-11-16 10:32:29 C 02 34 51.24 +21 31 55.2 U T08
2017-11-18 07:47:35 C 02 31 56.61 +21 26 30.1 U 703
2017-11-18 08:10:47 C 02 31 55.05 +21 26 27.2 U 703
2017-11-20 09:24:06 C 02 28 51.60 +21 20 22.1 U T08
2017-11-20 09:35:40 C 02 28 50.87 +21 20 20.2 U T08
2017-11-20 09:45:52 C 02 28 50.20 +21 20 19.7 U T08
2017-11-20 10:04:13 C 02 28 49.02 +21 20 17.2 U T08
2017-11-22 05:55:45 C 02 26 11.79 +21 14 41.6 U 703
2017-11-22 06:07:12 C 02 26 10.99 +21 14 38.6 U 703
2017-11-22 06:16:06 C 02 26 10.42 +21 14 37.6 U 703
2017-11-22 06:26:09 C 02 26 09.83 +21 14 36.1 U 703
2017-11-22 10:26:36 C 02 25 55.630 +21 14 06.85 L F51
2017-11-22 10:46:37 C 02 25 54.420 +21 14 04.15 L F51
2017-11-22 11:06:47 C 02 25 53.205 +21 14 01.43 L F51
2017-11-22 11:26:48 C 02 25 52.001 +21 13 58.72 L F51