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
2006-04-29 18:18:01 C 21 42 57.88 -24 41 47.1 r E12
2006-04-29 18:27:32 C 21 42 59.11 -24 41 43.6 r E12
2006-04-29 18:36:57 C 21 43 00.22 -24 41 41.2 r E12
2006-04-29 18:46:25 C 21 43 01.30 -24 41 37.8 r E12
2006-05-29 19:04:44 C 23 00 12.99 -21 06 41.4 r E12
2006-05-29 19:21:23 C 23 00 14.43 -21 06 37.1 r E12
2006-05-29 19:38:35 C 23 00 15.91 -21 06 32.5 r E12
2006-07-28 17:31:54 C 00 02 03.37 -20 04 44.4 r E12
2006-07-28 17:51:22 C 00 02 02.94 -20 04 48.8 r E12
2006-08-18 09:48:58 C 23 42 39.33 -22 00 53.3 o 644
2006-08-18 10:19:22 C 23 42 37.42 -22 00 59.7 o 644
2006-08-18 10:49:53 C 23 42 35.45 -22 01 06.1 o 644
2006-08-19 16:47:10 C 23 40 45.73 -22 07 08.4 r 428
2006-08-19 17:24:38 C 23 40 43.27 -22 07 14.8 r 428
2006-08-28 14:21:14 C 23 26 23.56 -22 41 01.5 r E12
2006-08-28 14:34:43 C 23 26 22.56 -22 41 03.2 r E12
2006-08-28 14:47:38 C 23 26 21.62 -22 41 04.5 r E12
2006-08-28 15:00:06 C 23 26 20.68 -22 41 05.4 r E12
2006-09-02 05:43:29 C 23 18 23.69 -22 49 15.8 o 808
2006-09-02 05:53:30 C 23 18 22.79 -22 49 17.7 o 808
2006-09-02 06:03:29 C 23 18 22.16 -22 49 17.1 o 808
2006-09-14 05:13:31 C 22 58 37.20 -22 34 51.0 o 644
2006-09-14 05:45:03 C 22 58 35.13 -22 34 46.6 o 644
2006-09-14 06:19:28 C 22 58 32.88 -22 34 41.9 o 644
2006-09-16 03:41:00 C 22 55 44.46 -22 27 30.2 c 844
2006-09-16 03:57:14 C 22 55 43.52 -22 27 27.3 c 844
2006-09-16 04:00:47 C 22 55 43.21 -22 27 26.6 c 844
2006-09-16 04:11:08 C 22 55 42.62 -22 27 22.2 c 844
2006-09-17 06:19:01 C 22 54 09.42 -22 23 01.7 o 699
2006-09-17 06:38:42 C 22 54 08.22 -22 22 58.1 o 699
2006-09-17 06:58:24 C 22 54 07.01 -22 22 54.5 o 699
2006-09-17 07:18:07 C 22 54 05.80 -22 22 49.8 o 699
2006-09-20 05:12:48 C 22 50 09.81 -22 08 38.5 r 703
2006-09-20 05:21:19 C 22 50 09.31 -22 08 36.8 r 703
2006-09-20 05:29:53 C 22 50 08.84 -22 08 35.0 r 703
2006-09-20 05:38:26 C 22 50 08.37 -22 08 32.9 r 703
2006-09-22 08:33:33 C 22 47 29.30 -21 56 34.8 19.5 c 608
2006-09-22 08:49:39 C 22 47 28.49 -21 56 30.8 19.2 c 608
2006-09-22 09:06:19 C 22 47 27.63 -21 56 26.2 18.9 c 608
2006-09-26 05:14:26 C 22 43 11.31 -21 31 28.9 r 703
2006-09-26 05:24:41 C 22 43 10.84 -21 31 26.5 r 703
2006-09-26 05:34:59 C 22 43 10.38 -21 31 23.3 r 703
2006-09-26 05:45:16 C 22 43 09.91 -21 31 19.9 r 703
2006-09-30 03:12:29 C 22 39 31.98 -21 02 03.9 r 808
2006-09-30 03:23:30 C 22 39 31.59 -21 02 01.3 r 808
2006-09-30 03:33:29 C 22 39 31.43 -21 01 59.1 r 808
2006-10-12 02:28:55 C 22 32 53.49 -19 14 52.6 o 644
2006-10-12 02:58:05 C 22 32 53.07 -19 14 41.0 o 644
2006-10-12 03:27:17 C 22 32 52.69 -19 14 29.1 o 644
2006-11-27 01:53:31 C 22 55 51.38 -10 31 50.2 r G96