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
2002-10-11 06:51:07 C 02 06 34.49 +11 51 16.5 18.7 c 704
2002-10-11 07:14:00 C 02 06 33.00 +11 51 14.7 18.4 c 704
2002-10-11 07:36:52 C 02 06 31.51 +11 51 13.2 18.5 c 704
2002-10-26 19:19:19 C 01 42 14.59 +11 12 02.4 c 151
2002-10-26 19:23:50 C 01 42 14.28 +11 12 01.9 c 151
2002-10-30 05:21:45 C 01 37 01.51 +11 02 35.2 19.1 c 644
2002-10-30 05:51:54 C 01 36 59.56 +11 02 31.8 18.7 c 644
2002-10-30 06:20:35 C 01 36 57.72 +11 02 28.6 18.5 c 644
2002-10-31 05:10:35 C 01 35 33.03 +10 59 52.5 c 699
2002-10-31 05:42:10 C 01 35 30.96 +10 59 48.8 c 699
2002-10-31 06:13:41 C 01 35 29.08 +10 59 45.4 c 699
2002-10-31 06:45:15 C 01 35 26.98 +10 59 42.2 c 699
2002-11-01 06:26:12 C 01 34 00.47 +10 57 02.7 19.3 c 704
2002-11-01 06:50:53 C 01 33 58.80 +10 56 59.9 19.4 c 704
2002-11-01 07:15:51 C 01 33 57.24 +10 56 58.0 19.0 c 704
2002-11-06 05:36:04 C 01 27 07.43 +10 44 34.9 18.7 c 704
2002-11-06 06:00:01 C 01 27 06.04 +10 44 32.4 19.1 c 704
2002-11-06 06:24:00 C 01 27 04.74 +10 44 30.3 18.9 c 704
2002-11-06 06:48:01 C 01 27 03.36 +10 44 28.2 19.0 c 704
2002-11-06 07:12:02 C 01 27 02.00 +10 44 25.5 19.2 c 704
2002-11-22 03:30:48 C 01 10 52.14 +10 22 38.9 19.4 c 644
2002-11-22 04:00:50 C 01 10 51.21 +10 22 38.4 19.4 c 644
2002-11-22 04:31:26 C 01 10 50.25 +10 22 38.2 19.3 c 644
2002-12-01 03:30:01 C 01 06 12.72 +10 26 56.6 19.4 c 704
2002-12-01 04:35:22 C 01 06 11.68 +10 27 00.9 19.7 c 704
2002-12-01 04:57:09 C 01 06 11.35 +10 27 00.9 20.0 c 704
2004-05-25 15:51:59 C 23 53 47.62 -10 23 49.2 c 474
2004-05-25 16:06:19 C 23 53 48.82 -10 23 42.3 c 474
2004-05-25 16:13:29 C 23 53 49.38 -10 23 39.1 c 474
2004-07-29 19:02:14 C 01 25 22.48 -01 35 15.1 r E12
2004-07-29 19:15:55 C 01 25 22.77 -01 35 13.4 r E12
2004-07-29 19:29:34 C 01 25 23.09 -01 35 11.2 r E12
2004-07-29 19:43:14 C 01 25 23.42 -01 35 09.6 r E12
2004-08-19 16:53:49 C 01 28 47.08 -01 05 38.2 r E12
2004-08-19 17:18:05 C 01 28 46.77 -01 05 38.6 r E12
2004-08-19 17:42:22 C 01 28 46.42 -01 05 39.0 r E12
2004-08-19 18:06:36 C 01 28 46.09 -01 05 39.3 r E12
2004-08-23 16:51:55 C 01 27 18.23 -01 08 44.3 r E12
2004-08-23 17:13:04 C 01 27 17.79 -01 08 45.1 r E12
2004-08-23 17:34:22 C 01 27 17.33 -01 08 46.0 r E12
2004-08-23 17:55:33 C 01 27 16.93 -01 08 47.1 r E12
2004-09-08 07:02:59 C 01 14 40.08 -01 43 03.6 18.8 c 704
2004-09-08 07:19:43 C 01 14 39.24 -01 43 06.0 19.0 c 704
2004-09-08 07:36:41 C 01 14 38.38 -01 43 08.6 18.8 c 704
2004-09-08 07:53:59 C 01 14 37.52 -01 43 10.2 18.9 c 704
2004-09-08 08:10:45 C 01 14 36.67 -01 43 12.5 19.0 c 704
2004-09-12 05:38:34 C 01 09 51.76 -01 55 50.2 18.6 c 704
2004-09-12 05:55:29 C 01 09 50.77 -01 55 53.1 19.2 c 704
2004-09-12 06:12:23 C 01 09 49.85 -01 55 54.9 19.2 c 704
2004-09-12 06:29:16 C 01 09 48.94 -01 55 57.0 19.3 c 704