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
2019-09-24 14:22:41 C 02 19 20.708 +10 56 38.06 U F51
2019-09-24 14:38:54 C 02 19 19.992 +10 56 37.80 U F51
2019-09-24 14:55:16 C 02 19 19.267 +10 56 37.53 U F51
2019-09-25 13:46:06 C 02 18 20.235 +10 56 16.62 U F51
2019-09-25 14:02:36 C 02 18 19.476 +10 56 16.31 U F51
2019-09-25 14:19:07 C 02 18 18.716 +10 56 15.94 U F51
2019-09-25 14:35:40 C 02 18 17.957 +10 56 15.62 U F51
2019-09-28 04:29:03 C 02 15 26.78 +10 54 39.3 c J04
2019-09-28 04:45:53 C 02 15 25.94 +10 54 38.8 c J04
2019-09-28 05:02:43 C 02 15 25.11 +10 54 38.3 c J04
2019-09-28 05:19:33 C 02 15 24.26 +10 54 37.5 c J04
2019-09-29 09:46:22 C 02 14 00.57 +10 53 34.3 V 703
2019-09-29 09:53:51 C 02 14 00.11 +10 53 34.2 V 703
2019-09-29 10:01:20 C 02 13 59.79 +10 53 34.0 V 703
2019-09-29 10:08:49 C 02 13 59.47 +10 53 33.9 V 703
2019-09-29 13:31:16 C 02 13 49.20 +10 53 26.2 V T05
2019-09-29 13:41:31 C 02 13 48.69 +10 53 26.0 V T05
2019-09-29 13:57:35 C 02 13 47.81 +10 53 25.4 V T05
2019-09-29 14:06:55 C 02 13 47.32 +10 53 24.7 V T05
2019-09-30 07:49:47 C 02 12 53.67 +10 52 37.7 V G96
2019-09-30 07:57:56 C 02 12 53.24 +10 52 37.5 V G96
2019-09-30 08:06:04 C 02 12 52.80 +10 52 37.1 V G96
2019-09-30 08:14:13 C 02 12 52.37 +10 52 36.8 V G96
2019-09-30 09:26:47 C 02 12 48.50 +10 52 33.1 U I41
2019-09-30 09:27:14 C 02 12 48.82 +10 52 34.9 V T08
2019-09-30 09:32:27 C 02 12 48.53 +10 52 34.5 V T08
2019-09-30 09:38:13 C 02 12 47.89 +10 52 32.7 U I41
2019-09-30 09:44:20 C 02 12 47.91 +10 52 34.1 V T08
2019-09-30 09:57:57 C 02 12 46.84 +10 52 31.7 U I41
2019-09-30 09:58:40 C 02 12 47.15 +10 52 33.9 V T08
2019-10-01 12:43:39 C 02 11 22.75 +10 51 15.9 V T08
2019-10-01 12:56:25 C 02 11 22.08 +10 51 15.3 V T08
2019-10-01 13:22:31 C 02 11 20.62 +10 51 13.6 V T08
2019-10-01 13:27:44 C 02 11 20.33 +10 51 13.4 V T08
2019-10-02 08:49:50 C 02 10 18.15 +10 50 09.1 U I41
2019-10-03 01:47:35 C 02 09 22.30 +10 49 09.3 q 160
2019-10-03 01:50:39 C 02 09 22.12 +10 49 08.8 q 160
2019-10-03 01:53:40 C 02 09 21.93 +10 49 08.6 q 160
2019-10-05 09:25:06 C 02 06 13.33 +10 45 33.0 U I41
2019-10-05 09:26:24 C 02 06 13.25 +10 45 32.8 U I41
2019-10-06 01:58:05 C 02 05 15.26 +10 44 19.9 q 160
2019-10-06 02:01:08 C 02 05 15.00 +10 44 19.4 q 160
2019-10-06 02:04:11 C 02 05 14.83 +10 44 19.5 q 160
2019-10-06 10:59:45 C 02 04 43.55 +10 43 42.8 V T05
2019-10-06 11:04:19 C 02 04 43.24 +10 43 42.1 V T05
2019-10-06 11:13:21 C 02 04 42.73 +10 43 42.1 V T05
2019-10-06 11:29:02 C 02 04 41.73 +10 43 40.2 V T05
2019-10-06 11:32:17 C 02 04 41.48 +10 43 39.8 V T05
2019-10-06 14:24:39 C 02 04 30.93 +10 43 26.5 V T08
2019-10-06 14:28:45 C 02 04 30.71 +10 43 25.7 V T05