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
2006-11-27 02:03:07 C 22 55 51.78 -10 31 44.6 r G96
2006-11-27 02:12:37 C 22 55 52.21 -10 31 40.2 r G96
2006-11-27 02:22:04 C 22 55 52.57 -10 31 35.5 r G96
2007-10-18 11:52:24 C 10 00 05.58 +20 48 15.7 r G96
2007-10-18 12:00:11 C 10 00 06.40 +20 48 12.3 r G96
2007-10-18 12:07:51 C 10 00 07.20 +20 48 08.9 r G96
2007-10-18 12:15:40 C 10 00 07.95 +20 48 05.7 r G96
2007-12-25 11:15:07 C 12 47 24.71 +05 50 51.1 r 448
2007-12-25 11:28:36 C 12 47 26.09 +05 50 42.4 r 448
2007-12-25 11:41:47 C 12 47 27.45 +05 50 34.5 r 448
2008-02-13 10:51:52 C 14 59 18.24 -08 12 42.9 18.3 c 704
2008-02-13 11:09:29 C 14 59 20.23 -08 12 56.5 18.6 c 704
2008-02-13 11:25:58 C 14 59 22.09 -08 13 09.4 r 703
2008-02-13 11:27:04 C 14 59 22.21 -08 13 09.8 18.7 c 704
2008-02-13 11:36:06 C 14 59 23.24 -08 13 17.5 r 703
2008-02-13 11:44:38 C 14 59 24.16 -08 13 23.1 19.0 c 704
2008-02-13 11:46:21 C 14 59 24.43 -08 13 25.2 r 703
2008-02-13 11:56:47 C 14 59 25.58 -08 13 32.8 r 703
2008-03-01 11:21:13 C 15 47 59.13 -13 43 32.3 r 703
2008-03-01 11:30:40 C 15 48 00.18 -13 43 40.1 r 703
2008-03-01 11:40:06 C 15 48 01.44 -13 43 47.5 r 703
2008-03-01 11:49:39 C 15 48 02.55 -13 43 55.4 r 703
2008-03-12 10:37:54 C 16 20 35.46 -17 32 33.6 17.9 c 704
2008-03-12 10:54:02 C 16 20 37.39 -17 32 48.6 18.3 c 704
2008-03-12 11:10:07 C 16 20 39.38 -17 33 02.9 17.9 c 704
2008-03-12 11:26:12 C 16 20 41.26 -17 33 17.1 18.4 c 704
2008-03-12 11:42:17 C 16 20 43.30 -17 33 31.6 18.2 c 704
2008-05-08 15:01:53 C 19 12 17.10 -39 59 05.8 r E12
2008-05-08 15:12:25 C 19 12 18.14 -39 59 16.6 r E12
2008-05-08 15:22:58 C 19 12 19.18 -39 59 27.6 r E12
2008-05-08 15:33:33 C 19 12 20.26 -39 59 38.4 r E12
2008-05-10 05:17:45 C 19 16 15.04 -40 36 45.9 c 844
2008-05-10 05:19:13 C 19 16 15.20 -40 36 47.4 c 844
2008-05-10 05:34:35 C 19 16 16.68 -40 37 03.0 c 844
2008-05-10 05:46:45 C 19 16 17.85 -40 37 15.3 c 844
2008-05-13 14:07:59 C 19 24 15.76 -41 55 28.7 r E12
2008-05-13 14:15:46 C 19 24 16.45 -41 55 36.7 r E12
2008-05-13 14:23:35 C 19 24 17.17 -41 55 44.6 r E12
2008-05-13 14:31:24 C 19 24 17.89 -41 55 52.6 r E12
2008-05-29 18:55:22 C 19 53 18.06 -47 51 06.3 r E12
2008-05-29 19:31:36 C 19 53 19.57 -47 51 35.9 r E12
2008-06-10 15:34:43 C 20 01 21.64 -51 29 09.3 r E12
2008-06-10 15:53:42 C 20 01 21.57 -51 29 22.5 r E12
2008-06-10 16:12:40 C 20 01 21.50 -51 29 35.3 r E12
2008-06-25 15:16:28 C 19 53 46.32 -54 23 28.2 r E12
2008-06-25 15:32:18 C 19 53 45.45 -54 23 32.6 r E12
2008-06-25 15:48:02 C 19 53 44.62 -54 23 37.1 r E12
2008-06-25 16:03:45 C 19 53 43.72 -54 23 41.1 r E12
2008-08-02 11:27:25 C 19 13 31.04 -49 58 31.5 r E12
2008-08-02 11:35:22 C 19 13 30.90 -49 58 26.0 r E12