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
2010-03-15 20:08:32 C 10 41 17.74 +29 48 59.7 v 434
2010-03-15 20:10:45 C 10 41 17.58 +29 48 58.9 v 434
2010-03-15 20:14:04 C 10 41 17.35 +29 48 57.9 v 434
2010-03-15 21:05:42 C 10 41 13.30 +29 48 36.7 16.6 u 084
2010-03-16 23:49:03 C 10 39 26.85 +29 39 12.9 u 160
2010-03-16 23:51:15 C 10 39 26.70 +29 39 12.1 u 160
2010-03-16 23:53:27 C 10 39 26.54 +29 39 11.2 u 160
2010-03-17 00:34:47 C 10 39 23.64 +29 38 49.0 16.5 u 084
2010-03-17 20:36:24 C 10 38 06.51 +29 31 04.6 16.4 u 084
2010-03-17 21:08:09 C 10 38 04.64 +29 30 56.8 u B67
2010-03-17 21:18:46 C 10 38 03.89 +29 30 52.5 u B67
2010-03-17 21:29:41 C 10 38 03.17 +29 30 48.4 u B67
2010-03-18 00:20:36 C 10 37 51.42 +29 29 39.3 r B09
2010-03-18 00:23:43 C 10 37 51.21 +29 29 38.0 r B09
2010-03-18 00:26:49 C 10 37 51.01 +29 29 36.4 r B09
2010-03-18 20:21:13 C 10 36 36.70 +29 21 16.8 r J75
2010-03-18 20:41:21 C 10 36 35.36 +29 21 08.7 r J75
2010-03-18 21:01:28 C 10 36 34.01 +29 21 00.3 r J75
2010-03-21 05:56:29 C 10 33 06.19 +28 54 13.7 r 703
2010-03-21 06:09:03 C 10 33 05.36 +28 54 07.2 r 703
2010-03-21 06:21:43 C 10 33 04.53 +28 54 00.7 r 703
2010-03-21 06:34:30 C 10 33 03.74 +28 53 54.1 r 703
2010-03-22 18:34:06 C 10 31 01.18 +28 34 35.2 16.4 u 084
2010-03-22 21:00:45 C 10 30 53.00 +28 33 17.7 c 127
2010-03-22 21:07:58 C 10 30 52.56 +28 33 13.7 c 127
2010-03-22 23:11:28 C 10 30 45.64 +28 32 12.0 u J51
2010-03-22 23:24:49 C 10 30 44.81 +28 32 04.3 u J51
2010-03-22 23:35:30 C 10 30 44.17 +28 31 58.2 u J51
2010-03-23 22:08:35 C 10 29 30.38 +28 18 53.9 16.9 u C20
2010-03-23 22:12:49 C 10 29 30.13 +28 18 51.3 16.8 u C20
2010-03-23 23:23:05 C 10 29 26.57 +28 18 05.3 16.6 o 084
2010-03-23 23:26:16 C 10 29 26.46 +28 18 03.8 16.7 u 084
2010-03-24 18:27:37 C 10 28 27.92 +28 06 43.0 16.8 u C20
2010-03-24 18:31:50 C 10 28 27.68 +28 06 40.4 16.7 u C20
2010-03-24 22:11:20 C 10 28 15.86 +28 04 19.7 16.7 u 084
2010-03-24 22:14:30 C 10 28 15.68 +28 04 17.7 16.7 u 084
2010-03-25 02:06:10 C 10 28 03.57 +28 01 50.8 16.6 u 084
2010-03-25 02:09:19 C 10 28 03.42 +28 01 48.7 17.0 u 084
2010-03-25 18:19:27 C 10 27 16.42 +27 51 45.2 16.8 u C20
2010-03-25 18:23:41 C 10 27 16.20 +27 51 42.6 16.8 u C20
2010-03-26 20:06:50 C 10 26 02.38 +27 34 51.5 16.8 u C20
2010-03-26 20:11:04 C 10 26 02.16 +27 34 48.7 16.9 u C20
2010-03-27 00:36:13 C 10 25 50.92 +27 31 49.7 o I15
2010-03-27 00:40:43 C 10 25 50.70 +27 31 47.2 o I15
2010-03-27 00:45:23 C 10 25 50.45 +27 31 44.2 o I15
2010-03-27 19:18:20 C 10 24 59.97 +27 19 02.0 16.6 u C20
2010-03-27 19:22:33 C 10 24 59.76 +27 18 59.1 16.5 u C20
2010-03-28 22:27:35 C 10 23 50.13 +26 59 43.5 16.6 u C20
2010-03-28 22:31:49 C 10 23 49.94 +26 59 40.4 16.5 u C20
2010-03-30 03:44:12 C 10 22 41.98 +26 38 10.2 r H53