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
2017-11-26 06:13:44 C 02 20 49.07 +21 02 17.7 U 703
2017-11-26 06:21:22 C 02 20 48.61 +21 02 16.7 U 703
2017-11-26 06:29:00 C 02 20 48.31 +21 02 15.6 U 703
2017-11-26 06:36:38 C 02 20 47.84 +21 02 15.2 U 703
2017-11-27 04:28:07 C 02 19 39.81 +20 59 27.7 U G96
2017-11-27 04:35:32 C 02 19 39.42 +20 59 26.7 U G96
2017-11-27 04:43:02 C 02 19 39.01 +20 59 25.9 U G96
2017-11-27 04:50:34 C 02 19 38.60 +20 59 24.7 U G96
2017-12-07 04:58:08 C 02 09 22.750 +20 31 57.68 U F51
2017-12-07 05:18:07 C 02 09 22.042 +20 31 55.88 U F51
2017-12-07 05:37:56 C 02 09 21.333 +20 31 54.01 U F51
2017-12-10 12:12:23 C 02 06 56.22 +20 24 51.4 q D29
2017-12-10 12:32:45 C 02 06 55.71 +20 24 50.4 q D29
2017-12-14 04:46:04 C 02 04 47.10 +20 18 30.8 U G96
2017-12-14 04:53:31 C 02 04 46.93 +20 18 30.3 U G96
2017-12-14 05:01:01 C 02 04 46.76 +20 18 29.8 U G96
2017-12-14 05:08:28 C 02 04 46.59 +20 18 29.3 U G96
2018-01-01 06:44:52 C 02 02 43.791 +20 16 30.21 U F51
2018-01-01 07:04:23 C 02 02 43.956 +20 16 31.21 U F51
2018-01-01 07:23:58 C 02 02 44.130 +20 16 32.19 U F51
2018-01-05 19:16:52 C 02 04 13.10 +20 23 48.6 19.8 q J43
2018-01-05 19:29:23 C 02 04 13.27 +20 23 49.8 20.5 q J43
2018-01-05 19:41:54 C 02 04 13.51 +20 23 51.2 19.9 q J43
2018-01-05 19:54:28 C 02 04 13.68 +20 23 51.8 20.1 q J43
2018-01-08 07:27:19 C 02 05 20.620 +20 29 09.25 U F51
2018-01-08 07:45:19 C 02 05 20.959 +20 29 10.92 U F51
2018-01-08 08:03:18 C 02 05 21.302 +20 29 12.58 U F51
2018-01-08 08:21:18 C 02 05 21.649 +20 29 14.27 U F51
2018-01-13 01:52:54 C 02 08 03.61 +20 41 39.1 U G96
2018-01-13 02:01:01 C 02 08 03.82 +20 41 40.0 U G96
2018-01-13 02:09:09 C 02 08 04.03 +20 41 41.1 U G96
2018-01-13 02:17:16 C 02 08 04.24 +20 41 41.9 U G96
2019-08-01 11:35:45 C 02 15 58.03 +07 58 46.6 U I41
2019-08-01 11:55:22 C 02 15 58.77 +07 58 52.0 U I41
2019-08-03 11:07:48 C 02 17 47.81 +08 11 33.4 U I41
2019-08-03 11:38:13 C 02 17 48.90 +08 11 41.5 U I41
2019-08-11 10:57:39 C 02 24 09.19 +08 58 35.8 U I41
2019-08-11 11:57:06 C 02 24 10.82 +08 58 49.3 U I41
2019-09-09 02:26:26 C 02 29 58.57 +10 44 22.4 V C95
2019-09-09 02:40:19 C 02 29 58.35 +10 44 23.8 V C95
2019-09-09 02:54:13 C 02 29 58.12 +10 44 24.9 V C95
2019-09-10 12:20:51 C 02 29 26.21 +10 46 54.8 V T08
2019-09-10 13:06:22 C 02 29 25.47 +10 46 58.3 V T08
2019-09-10 13:19:23 C 02 29 25.17 +10 46 57.9 V T08
2019-09-10 13:33:55 C 02 29 24.85 +10 47 00.2 V T08
2019-09-22 09:27:24 C 02 21 29.33 +10 56 55.8 V G96
2019-09-22 09:37:42 C 02 21 28.90 +10 56 55.7 V G96
2019-09-22 09:43:16 C 02 21 28.67 +10 56 55.7 V G96
2019-09-22 09:48:52 C 02 21 28.45 +10 56 55.7 V G96
2019-09-24 14:06:24 C 02 19 21.432 +10 56 38.30 U F51