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
1993-04-25 04:28:14 10 46 47.16 +12 45 38.0 16.5 675
1993-04-26 04:23:59 10 47 10.16 +12 17 05.7 675
1993-04-26 04:59:30 10 47 10.63 +12 16 22.8 675
1998-12-17 01:39:31 C 03 40 11.67 +31 56 18.9 19.3 a 704
1998-12-17 02:13:07 C 03 40 09.89 +31 56 10.3 19.5 a 704
1998-12-17 02:46:07 C 03 40 07.75 +31 56 10.4 19.1 a 704
1998-12-17 03:20:34 C 03 40 05.63 +31 56 06.1 18.9 a 704
1998-12-17 03:53:40 C 03 40 03.51 +31 56 01.9 19.1 a 704
1998-12-18 18:23:04 C 03 37 50.25 +31 50 28.0 z 468
1998-12-18 18:23:44 C 03 37 50.16 +31 50 26.3 557
1998-12-18 18:27:05 C 03 37 50.03 +31 50 25.5 557
1998-12-18 18:30:18 C 03 37 49.84 +31 50 27.0 z 468
1998-12-18 18:30:25 C 03 37 49.82 +31 50 25.0 557
1998-12-18 18:39:02 C 03 37 49.32 +31 50 25.3 z 468
1998-12-18 18:46:37 C 03 37 48.90 +31 50 22.7 046
1998-12-18 18:51:29 C 03 37 48.68 +31 50 22.7 046
1998-12-18 18:53:39 C 03 37 48.42 +31 50 22.0 046
1998-12-18 18:57:03 C 03 37 48.34 +31 50 21.5 046
1998-12-18 19:01:22 C 03 37 48.01 +31 50 20.3 046
1998-12-19 04:45:14 C 03 37 15.46 +31 48 55.6 20.0 a 704
1998-12-19 05:18:16 C 03 37 13.50 +31 48 51.5 19.4 a 704
1998-12-19 05:51:05 C 03 37 11.42 +31 48 47.7 19.6 a 704
1998-12-19 06:24:02 C 03 37 09.58 +31 48 42.7 19.3 a 704
1998-12-19 06:56:15 C 03 37 07.84 +31 48 35.8 658
1998-12-19 07:01:55 C 03 37 07.50 +31 48 34.6 658
1998-12-19 07:10:24 C 03 37 07.06 +31 48 33.4 658
1998-12-21 04:38:40 C 03 34 41.48 +31 41 39.7 19.2 a 704
1998-12-21 04:53:41 C 03 34 40.59 +31 41 37.3 a 704
1998-12-21 05:08:40 C 03 34 39.83 +31 41 35.6 a 704
1998-12-21 19:43:01 C 03 33 55.39 +31 39 16.6 046
1998-12-21 19:49:09 C 03 33 55.02 +31 39 15.9 046
1998-12-21 19:52:19 C 03 33 54.92 +31 39 15.5 046
1998-12-23 10:36:39 C 03 32 01.95 +31 33 09.5 z 402
1998-12-23 10:38:55 C 03 32 01.91 +31 33 10.7 z 402
1998-12-23 10:48:04 C 03 32 01.43 +31 33 08.8 z 402
1999-01-02 06:12:55 C 03 23 25.84 +30 55 54.3 a 658
1999-01-03 05:39:45 C 03 22 51.02 +30 52 24.3 658
1999-01-03 05:48:17 C 03 22 50.82 +30 52 23.6 658
1999-01-03 05:55:45 C 03 22 50.65 +30 52 22.4 658
1999-01-23 03:01:16 C 03 21 22.40 +30 01 51.4 z 711
1999-01-23 03:20:03 C 03 21 22.70 +30 01 50.5 z 711
1999-01-24 03:07:41 C 03 21 47.27 +30 00 32.4 a 658
1999-01-24 03:23:09 C 03 21 47.47 +30 00 31.5 a 658
1999-01-24 03:33:02 C 03 21 47.72 +30 00 30.7 a 658
1999-03-13 01:58:30 C 04 20 14.30 +30 43 15.8 z 711
1999-03-13 02:10:59 C 04 20 15.16 +30 43 16.4 z 711
1999-03-14 01:58:35 C 04 22 05.01 +30 45 03.4 z 711
1999-03-14 02:11:01 C 04 22 05.95 +30 45 03.6 z 711
2000-09-02 10:20:42 C 03 39 48.43 +19 25 59.8 z 711
2000-09-02 10:39:17 C 03 39 48.91 +19 26 03.6 z 711