IAA RAS IAA Minor Planet Database

85804 (1998 WQ5)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3543687860 ± 6.65e-09
Semi-major axis (a)1.7211631714 AU ± 4.75e-10
Inclination (i)27.66459372° ± 1.24e-06
Long. of Asc. Node (Ω)285.67822994° ± 1.30e-06
Arg. of Perihelion (ω)269.84334313° ± 2.00e-06
Mean Anomaly (M)245.90272876° ± 1.68e-06
Mean Motion (n)0.4364949355°/day ± 1.81e-10
Perihelion dist (q)1.11123667 AU ± 1.14e-08
Aphelion dist (Q)2.33108967 AU ± 1.15e-08
Orbital Period2.25804747 yr ± 9.34e-10
Physical Parameters
H (abs. magnitude)15.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.207″
Uncertainty0
Orbit TypeAmor
MOID0.371125 AU
Observations Used3309
Gaia Obs Used149
Oppositions16
Arc Total1989-2026
First Observation Used1989-11-25
Last Observation Used2026-01-12
Observations (3973)
Date Type RA Dec Mag Band Observatory
2020-09-25 08:12:48 C 21 57 11.31 +34 34 26.0 – V T08
2020-09-25 08:18:59 C 21 57 11.00 +34 34 22.5 – V T08
2020-09-25 09:03:45 C 21 57 08.85 +34 34 01.6 – V T08
2020-09-25 09:07:49 C 21 57 08.66 +34 34 00.2 – V T08
2020-09-25 09:16:29 C 21 57 08.19 +34 33 55.9 – V T08
2020-09-27 07:54:01 C 21 55 04.66 +34 11 42.9 – V T05
2020-09-27 08:12:07 C 21 55 03.87 +34 11 33.8 – V T05
2020-09-27 08:27:08 C 21 55 03.20 +34 11 26.7 – V T05
2020-09-27 08:36:09 C 21 55 02.80 +34 11 22.3 – V T05
2020-09-28 04:15:01 C 21 54 13.67 +34 01 43.8 – V G96
2020-09-28 04:23:26 C 21 54 13.29 +34 01 39.1 – V G96
2020-09-28 04:31:48 C 21 54 12.95 +34 01 34.8 – V G96
2020-09-28 04:40:12 C 21 54 12.64 +34 01 31.1 – V G96
2020-10-06 04:48:18 C 21 47 40.50 +32 21 15.4 – V G96
2020-10-06 04:55:44 C 21 47 40.28 +32 21 11.2 – V G96
2020-10-06 05:03:10 C 21 47 40.07 +32 21 07.3 – V G96
2020-10-06 05:10:35 C 21 47 39.86 +32 21 03.2 – V G96
2020-10-07 05:03:13 C 21 47 02.70 +32 08 02.7 – U I41
2020-10-07 06:49:50 C 21 46 59.87 +32 07 04.1 – U I41
2020-10-07 09:23:33 C 21 46 56.03 +32 05 41.0 – V T08
2020-10-07 09:28:12 C 21 46 55.92 +32 05 39.3 – V T08
2020-10-07 10:02:18 C 21 46 54.98 +32 05 20.2 – V T08
2020-10-07 10:10:17 C 21 46 54.81 +32 05 15.6 – V T08
2020-10-09 05:27:41 C 21 45 55.03 +31 41 28.6 – U I41
2020-10-09 06:21:05 C 21 45 53.81 +31 40 59.0 – U I41
2020-10-13 18:07:14 C 21 44 01.17 +30 41 20.6 – V 130
2020-10-13 18:16:18 C 21 44 01.03 +30 41 15.6 – V 130
2020-10-15 07:50:58 C 21 43 33.33 +30 20 30.8 – V T08
2020-10-15 08:05:41 C 21 43 33.17 +30 20 23.1 – V T08
2020-10-15 08:09:44 C 21 43 33.14 +30 20 21.1 – V T08
2020-10-15 08:27:03 C 21 43 32.90 +30 20 11.5 – V T08
2020-10-17 08:47:54 C 21 43 06.52 +29 53 34.7 – V T05
2020-10-17 08:53:53 C 21 43 06.48 +29 53 32.3 – V T05
2020-10-17 09:18:09 C 21 43 06.23 +29 53 16.5 – V T05
2020-10-17 09:42:26 C 21 43 06.06 +29 53 04.3 – V T05
2020-10-19 03:30:23 C 21 42 51.73 +29 30 15.3 – U I41
2020-10-19 03:55:16 C 21 42 51.58 +29 30 01.8 – U I41
2020-10-19 04:06:23 C 21 42 51.52 +29 29 55.7 – U I41
2020-10-19 06:14:04 C 21 42 50.79 +29 28 45.8 – U I41
2020-10-19 07:10:38 C 21 42 50.50 +29 28 14.7 – U I41
2020-10-19 07:15:44 C 21 42 50.64 +29 28 14.2 – V T08
2020-10-19 07:21:18 C 21 42 50.61 +29 28 11.2 – V T08
2020-10-19 07:35:32 C 21 42 50.54 +29 28 02.2 – V T08
2020-10-19 07:51:20 C 21 42 50.42 +29 27 54.8 – V T08
2020-10-21 05:17:33 C 21 42 43.47 +29 03 23.5 – U I41
2020-10-21 05:39:02 C 21 42 43.41 +29 03 11.7 – U I41
2020-10-23 03:50:16 C 21 42 44.98 +28 38 39.8 – U I41
2020-10-23 04:13:43 C 21 42 45.00 +28 38 27.4 – U I41
2020-10-23 05:06:35 C 21 42 45.04 +28 37 59.6 – U I41
2020-10-25 08:12:42 C 21 42 56.37 +28 11 22.6 – V T05