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
2021-09-11 09:13:59 s 1 -107813.74 7 +340420.47 3150.0 C57
2021-09-11 16:13:59 S 01 00 08.604 -03 39 13.14 V C57
2021-09-11 16:13:59 s 1 -121275.79 3 +327967.41 7700.0 C57
2021-09-13 09:52:58 C 00 58 22.19 -03 44 32.9 V T05
2021-09-13 10:31:13 C 00 58 19.85 -03 44 38.7 V T05
2021-09-13 10:37:15 C 00 58 19.47 -03 44 39.7 V T05
2021-09-13 10:45:09 C 00 58 19.01 -03 44 41.4 V T05
2021-09-13 16:12:48 C 00 57 59.959 -03 45 23.58 V P07
2021-09-13 17:32:33 C 00 57 55.092 -03 45 35.57 V P07
2021-09-13 18:50:21 C 00 57 50.362 -03 45 46.98 V P07
2021-09-13 19:49:59 C 00 57 46.687 -03 45 56.16 V P07
2021-09-13 21:04:38 C 00 57 42.168 -03 46 07.43 V P07
2021-09-14 07:07:29 C 00 57 07.33 -03 47 47.9 V 703
2021-09-14 07:15:05 C 00 57 06.90 -03 47 48.9 V 703
2021-09-14 07:22:41 C 00 57 06.40 -03 47 50.8 V 703
2021-09-14 07:30:18 C 00 57 05.96 -03 47 51.8 V 703
2021-09-16 16:49:59 C 00 53 37.73 -03 56 30.9 V D29
2021-09-16 17:10:20 C 00 53 36.41 -03 56 33.8 V D29
2021-09-16 17:30:42 C 00 53 35.11 -03 56 37.0 V D29
2021-09-17 02:43:57 S 00 53 05.746 -03 56 55.03 V C57
2021-09-17 02:43:57 s 1 +130627.53 6 -16349.646 4790.0 C57
2021-09-17 07:03:25 C 00 52 45.03 -03 58 38.6 U I41
2021-09-17 07:24:35 C 00 52 43.66 -03 58 41.9 U I41
2021-09-17 08:34:50 C 00 52 39.12 -03 58 52.4 U I41
2021-09-17 08:37:33 C 00 52 38.94 -03 58 52.7 U I41
2021-09-17 09:03:57 S 00 52 38.638 -03 57 50.69 V C57
2021-09-17 09:03:57 s 1 +150758.67 0 +21660.868 730.0 C57
2021-09-17 11:01:56 C 00 52 29.99 -03 59 12.4 V T05
2021-09-17 11:15:11 C 00 52 29.09 -03 59 14.4 V T05
2021-09-17 11:19:48 C 00 52 28.84 -03 59 14.6 V T05
2021-09-17 11:41:12 C 00 52 27.44 -03 59 17.7 V T05
2021-09-17 16:03:57 S 00 52 08.815 -03 58 43.07 V C57
2021-09-17 16:03:57 s 1 +164203.67 9 +62472.596 9390.0 C57
2021-09-17 16:13:57 S 00 52 07.728 -03 58 44.04 V C57
2021-09-17 16:13:57 s 1 +164433.00 2 +63416.656 1110.0 C57
2021-09-17 20:03:57 S 00 51 51.211 -03 59 25.91 V C57
2021-09-17 20:03:57 s 1 +168723.34 9 +84712.109 3440.0 C57
2021-09-17 21:23:57 S 00 51 45.852 -03 59 32.96 V C57
2021-09-17 21:23:57 s 1 +169806.71 0 +91923.689 8860.0 C57
2021-09-18 01:03:57 S 00 51 29.758 -04 00 03.89 V C57
2021-09-18 01:03:57 s 1 +171826.92 4 +111213.21 30.0 C57
2021-09-18 01:53:57 S 00 51 26.033 -04 00 09.65 V C57
2021-09-18 01:53:57 s 1 +172105.16 7 +115484.66 5160.0 C57
2021-09-18 02:13:57 S 00 51 24.758 -04 00 16.78 V C57
2021-09-18 02:13:57 s 1 +172198.91 0 +117181.49 5400.0 C57
2021-09-18 03:33:57 S 00 51 18.936 -04 00 26.82 V C57
2021-09-18 03:33:57 s 1 +172476.86 0 +123901.57 6850.0 C57
2021-09-18 04:13:57 S 00 51 16.375 -04 00 35.68 V C57
2021-09-18 04:13:57 s 1 +172559.38 2 +127221.23 1700.0 C57
2021-09-18 05:23:57 S 00 51 11.390 -04 00 43.06 V C57