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
2004-09-12 06:46:11 C 01 09 48.07 -01 55 59.6 19.1 c 704
2004-09-14 07:59:12 C 01 07 04.58 -02 03 00.3 o 699
2004-09-14 08:22:33 C 01 07 03.22 -02 03 04.0 o 699
2004-09-14 08:45:57 C 01 07 01.87 -02 03 07.8 o 699
2004-09-14 09:09:20 C 01 07 00.54 -02 03 10.7 o 699
2004-09-17 05:41:03 C 01 03 00.51 -02 13 07.8 18.8 c 704
2004-09-17 05:58:46 C 01 02 59.47 -02 13 11.0 19.1 c 704
2004-09-17 06:16:10 C 01 02 58.32 -02 13 13.7 18.8 c 704
2004-09-17 06:33:21 C 01 02 57.29 -02 13 16.3 19.3 c 704
2004-09-17 06:50:32 C 01 02 56.21 -02 13 18.2 19.0 c 704
2004-09-24 23:26:49 C 00 51 14.11 -02 39 37.2 o 084
2004-10-01 23:40:27 C 00 40 05.56 -02 59 56.2 c J87
2004-10-01 23:43:02 C 00 40 05.37 -02 59 56.3 c J87
2004-10-01 23:46:11 C 00 40 05.11 -02 59 56.8 c J87
2004-10-05 05:37:49 C 00 34 59.64 -03 07 21.6 o 699
2004-10-05 06:07:00 C 00 34 57.64 -03 07 24.3 o 699
2004-10-05 06:36:13 C 00 34 55.76 -03 07 26.8 o 699
2004-10-05 07:05:27 C 00 34 53.78 -03 07 28.8 o 699
2004-10-07 06:42:55 C 00 31 50.95 -03 11 14.1 18.7 c 704
2004-10-07 06:58:19 C 00 31 49.83 -03 11 15.2 19.4 c 704
2004-10-07 07:13:42 C 00 31 48.85 -03 11 17.3 19.1 c 704
2004-10-07 07:29:07 C 00 31 47.83 -03 11 17.2 18.9 c 704
2004-10-07 07:44:29 C 00 31 46.83 -03 11 18.7 19.1 c 704
2004-10-09 04:48:31 C 00 28 58.07 -03 14 15.3 18.4 c 704
2004-10-09 05:04:18 C 00 28 57.08 -03 14 16.5 18.8 c 704
2004-10-09 05:20:07 C 00 28 56.08 -03 14 17.0 18.9 c 704
2004-10-09 05:35:55 C 00 28 55.11 -03 14 18.0 18.6 c 704
2004-10-09 05:51:47 C 00 28 54.06 -03 14 19.2 18.6 c 704
2004-10-09 09:53:52 C 00 28 38.70 -03 14 32.4 o 699
2004-10-09 09:58:33 C 00 28 38.46 -03 14 35.4 o 699
2004-10-09 10:03:13 C 00 28 38.16 -03 14 33.7 o 699
2004-10-09 10:07:53 C 00 28 37.80 -03 14 33.9 o 699
2004-10-09 10:15:46 C 00 28 37.35 -03 14 34.7 o 699
2004-10-09 10:22:47 C 00 28 36.92 -03 14 35.7 o 699
2004-10-09 10:29:47 C 00 28 36.44 -03 14 34.6 o 699
2004-10-09 10:36:48 C 00 28 35.98 -03 14 36.0 o 699
2004-10-10 00:24:21 C 00 27 45.58 -03 15 23.1 o 084
2004-10-11 22:17:37 C 00 25 00.53 -03 17 28.5 o 084
2004-10-15 19:54:19 C 00 19 42.54 -03 19 36.9 o 084
2004-10-18 04:47:03 C 00 16 43.57 -03 19 23.7 18.8 c 704
2004-10-18 05:03:01 C 00 16 42.76 -03 19 23.6 19.1 c 704
2004-10-18 05:18:57 C 00 16 41.90 -03 19 23.0 19.2 c 704
2004-10-18 05:34:54 C 00 16 41.03 -03 19 23.5 19.2 c 704
2004-10-18 05:50:49 C 00 16 40.15 -03 19 23.4 19.1 c 704
2004-11-12 03:18:44 C 23 58 45.26 -02 11 15.9 o 704
2004-11-12 03:53:10 C 23 58 44.98 -02 11 09.3 o 704
2004-11-12 04:10:21 C 23 58 44.78 -02 11 07.3 o 704
2004-11-18 03:02:46 C 23 58 10.32 -01 38 54.1 19.4 c 704
2004-11-18 03:20:13 C 23 58 10.39 -01 38 49.5 19.5 c 704
2004-11-18 03:37:39 C 23 58 10.30 -01 38 45.7 19.1 c 704