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
2019-11-04 06:34:42 C 01 21 08.76 +09 30 48.6 V T05
2019-11-04 06:40:34 C 01 21 08.46 +09 30 47.8 V T05
2019-11-04 06:55:11 C 01 21 07.63 +09 30 46.3 V T05
2019-11-04 07:05:19 C 01 21 07.03 +09 30 45.0 V T05
2019-11-14 06:11:29 C 01 09 42.14 +09 14 25.5 V T08
2019-11-14 06:16:11 C 01 09 41.97 +09 14 25.1 V T08
2019-11-14 06:40:05 C 01 09 40.97 +09 14 24.7 V T08
2019-11-14 06:52:47 C 01 09 40.46 +09 14 23.4 V T08
2019-11-14 10:17:40 C 01 09 31.872 +09 14 15.70 U F52
2019-11-14 10:51:31 C 01 09 30.462 +09 14 14.24 U F52
2019-11-14 11:08:33 C 01 09 29.770 +09 14 13.61 U F52
2019-11-18 08:00:32 C 01 06 07.24 +09 11 37.3 V 703
2019-11-18 08:08:17 C 01 06 06.95 +09 11 37.4 V 703
2019-11-18 08:16:03 C 01 06 06.62 +09 11 37.2 V 703
2019-11-18 08:23:47 C 01 06 06.43 +09 11 37.4 V 703
2019-11-24 03:35:10 C 01 02 12.57 +09 12 13.0 U I41
2019-11-24 04:33:54 C 01 02 11.14 +09 12 14.9 U I41
2019-11-25 04:58:09 C 01 01 38.75 +09 12 55.3 U I41
2019-11-26 05:08:38 C 01 01 09.555 +09 13 47.29 U F52
2019-11-26 05:24:44 C 01 01 09.219 +09 13 47.99 U F52
2019-11-27 04:07:01 C 01 00 43.70 +09 14 43.7 U I41
2019-11-27 05:38:37 C 01 00 41.89 +09 14 47.8 U I41
2019-11-27 06:11:40 C 01 00 41.560 +09 14 50.84 U F51
2019-11-27 06:28:41 C 01 00 41.228 +09 14 51.60 U F51
2019-11-27 06:45:45 C 01 00 40.893 +09 14 52.40 U F51
2019-11-27 07:02:53 C 01 00 40.560 +09 14 53.22 U F51
2019-11-29 08:09:44 C 00 59 53.74 +09 17 30.9 V T08
2019-11-29 08:14:26 C 00 59 53.65 +09 17 30.9 V T08
2019-11-29 08:21:57 C 00 59 53.56 +09 17 30.8 V T08
2019-11-29 08:39:28 C 00 59 53.33 +09 17 31.5 V T08
2020-01-19 05:25:35 C 01 24 58.278 +13 34 15.81 U F51
2020-01-19 05:43:54 C 01 24 59.114 +13 34 21.67 U F51
2020-01-19 06:02:20 C 01 24 59.965 +13 34 27.46 U F51
2020-01-23 02:07:10 C 01 29 26.77 +14 04 33.2 U I41
2020-01-23 02:19:45 C 01 29 27.37 +14 04 37.2 U I41
2020-01-25 02:29:25 C 01 31 53.03 +14 20 43.3 U I41
2020-01-25 02:56:12 C 01 31 54.34 +14 20 52.6 U I41
2021-05-22 14:02:09 C 23 41 25.250 -11 59 44.26 U F51
2021-05-22 14:09:35 C 23 41 25.901 -11 59 40.53 U F51
2021-05-22 14:17:01 C 23 41 26.556 -11 59 36.96 U F51
2021-05-22 14:24:29 C 23 41 27.211 -11 59 33.25 U F51
2021-06-17 13:54:15 C 00 30 43.325 -07 19 47.55 U F51
2021-06-17 14:03:54 C 00 30 43.975 -07 19 43.77 U F51
2021-06-17 14:13:10 C 00 30 44.601 -07 19 40.24 U F51
2021-06-17 14:22:30 C 00 30 45.232 -07 19 36.58 U F51
2021-07-13 13:24:24 C 01 06 05.35 -04 03 28.8 V T08
2021-07-13 13:29:03 C 01 06 05.61 -04 03 27.7 V T08
2021-07-13 13:38:21 C 01 06 05.96 -04 03 25.5 V T08
2021-07-13 13:54:16 C 01 06 06.62 -04 03 22.4 V T08
2021-08-06 13:28:08 C 01 21 44.82 -02 39 47.1 V T08