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
2015-11-28 00:00:56 C 04 01 17.58 +31 36 08.2 q 160
2015-11-28 00:03:42 C 04 01 17.38 +31 36 08.0 q 160
2015-11-28 00:06:28 C 04 01 17.14 +31 36 07.7 q 160
2015-11-30 08:31:33 C 03 57 01.72 +31 35 15.2 q 703
2015-11-30 08:42:23 C 03 57 00.86 +31 35 15.5 q 703
2015-11-30 08:53:11 C 03 57 00.07 +31 35 14.7 q 703
2015-11-30 09:04:00 C 03 56 59.25 +31 35 14.4 q 703
2015-12-08 04:44:35 C 03 43 20.04 +31 23 01.2 q 703
2015-12-08 04:51:06 C 03 43 19.55 +31 23 00.8 q 703
2015-12-08 04:57:37 C 03 43 19.10 +31 22 59.9 q 703
2015-12-08 05:04:07 C 03 43 18.65 +31 22 59.6 q 703
2015-12-10 02:03:21 C 03 40 14.90 +31 18 11.9 u H21
2015-12-10 02:09:14 C 03 40 14.52 +31 18 11.4 u H21
2015-12-10 02:15:06 C 03 40 14.11 +31 18 10.7 u H21
2015-12-14 21:39:18 C 03 32 54.80 +31 03 31.4 o C41
2015-12-14 21:51:12 C 03 32 54.22 +31 03 29.1 o C41
2015-12-18 06:14:08 C 03 28 21.70 +30 51 50.1 R G45
2015-12-18 06:14:13 C 03 28 21.70 +30 51 50.2 R G45
2015-12-18 06:23:00 C 03 28 21.20 +30 51 49.1 R G45
2015-12-18 06:23:21 C 03 28 21.18 +30 51 48.8 R G45
2015-12-18 06:31:30 C 03 28 20.74 +30 51 47.5 R G45
2015-12-18 06:31:50 C 03 28 20.75 +30 51 47.1 R G45
2015-12-18 06:39:53 C 03 28 20.25 +30 51 46.3 R G45
2015-12-18 06:40:14 C 03 28 20.23 +30 51 45.8 R G45
2015-12-29 09:41:36 C 03 17 05.346 +30 10 26.27 L F51
2015-12-29 09:50:02 C 03 17 05.083 +30 10 25.04 L F51
2015-12-29 10:49:38 C 03 17 03.172 +30 10 15.39 L F51
2015-12-29 10:50:34 C 03 17 03.143 +30 10 15.24 L F51
2015-12-29 10:57:06 C 03 17 02.929 +30 10 14.22 L F51
2015-12-29 10:58:02 C 03 17 02.905 +30 10 14.02 L F51
2015-12-29 11:05:34 C 03 17 02.671 +30 10 12.78 L F51
2015-12-29 11:13:01 C 03 17 02.424 +30 10 11.61 L F51
2016-01-02 05:27:54 C 03 14 40.614 +29 57 07.03 L F51
2016-01-02 05:38:11 C 03 14 40.358 +29 57 05.64 L F51
2016-01-02 05:46:39 C 03 14 40.154 +29 57 04.48 L F51
2016-01-02 05:55:11 C 03 14 39.936 +29 57 03.18 L F51
2016-01-02 10:12:51 C 03 14 33.716 +29 56 26.25 L F51
2016-01-02 10:21:16 C 03 14 33.503 +29 56 25.02 L F51
2016-01-02 10:29:39 C 03 14 33.326 +29 56 23.79 L F51
2016-01-02 10:38:02 C 03 14 33.127 +29 56 22.47 L F51
2016-02-03 06:38:55 C 03 21 25.970 +29 09 24.17 L F51
2016-02-03 06:56:06 C 03 21 26.555 +29 09 24.51 L F51
2016-02-03 07:13:21 C 03 21 27.146 +29 09 24.58 L F51
2016-03-29 20:47:51 C 04 49 31.90 +30 50 41.1 t 950
2016-03-29 20:49:50 C 04 49 32.07 +30 50 41.2 t 950
2016-03-29 20:51:50 C 04 49 32.25 +30 50 41.3 t 950
2016-03-29 20:53:49 C 04 49 32.42 +30 50 41.6 t 950
2016-03-29 20:55:46 C 04 49 32.61 +30 50 41.5 t 950
2016-03-29 20:57:46 C 04 49 32.76 +30 50 41.6 t 950
2017-08-22 18:43:36 C 03 25 55.83 +17 40 34.4 q D29