480822 (1998 YM4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7195661734 ± 5.62e-08
Semi-major axis (a)1.4767783261 AU ± 2.64e-09
Inclination (i)3.43207123° ± 4.43e-06
Long. of Asc. Node (Ω)341.74440117° ± 1.56e-04
Arg. of Perihelion (ω)344.55517478° ± 1.57e-04
Mean Anomaly (M)35.71949053° ± 2.14e-05
Mean Motion (n)0.5492111068°/day ± 1.47e-09
Perihelion dist (q)0.41413860 AU ± 8.30e-08
Aphelion dist (Q)2.53941806 AU ± 8.31e-08
Orbital Period1.79462191 yr ± 4.81e-09
Physical Parameters
H (abs. magnitude)19.67
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.444″
Uncertainty0
Orbit TypeApollo
MOID0.046549 AU
Observations Used260
Oppositions12
Arc Total1998-2026
First Observation Used1998-12-19
Last Observation Used2026-01-10
Observations (262)
Date Type RA Dec Mag Band Observatory
1998-12-19 14:54:03 C 06 51 38.90 +42 02 20.2 385
1998-12-19 15:10:34 C 06 51 30.47 +42 01 51.0 385
1998-12-19 18:04:14 C 06 50 08.40 +41 57 09.8 i 888
1998-12-19 18:21:04 C 06 50 00.62 +41 56 40.8 i 888
1998-12-19 18:33:10 C 06 49 54.82 +41 56 21.1 i 888
1998-12-19 19:35:10 C 06 49 26.11 +41 54 36.6 i 888
1998-12-19 19:46:20 C 06 49 20.97 +41 54 17.4 i 888
1998-12-19 21:49:59 C 06 48 29.34 +41 50 57.9 z 587
1998-12-19 21:54:00 C 06 48 27.52 +41 50 52.6 z 587
1998-12-19 21:54:10 C 06 48 27.23 +41 50 50.6 046
1998-12-19 21:58:43 C 06 48 25.08 +41 50 43.9 046
1998-12-19 21:59:30 C 06 48 24.96 +41 50 43.9 z 587
1998-12-19 22:00:22 C 06 48 24.38 +41 50 41.1 046
1998-12-19 22:01:17 C 06 48 23.84 +41 50 38.5 046
1998-12-19 22:08:49 C 06 48 20.42 +41 50 27.7 046
1998-12-19 22:09:53 C 06 48 19.98 +41 50 25.5 046
1998-12-19 22:10:52 C 06 48 19.48 +41 50 24.4 046
1998-12-20 01:39:48 C 06 46 44.25 +41 44 46.0 557
1998-12-20 01:41:04 C 06 46 43.66 +41 44 43.8 557
1998-12-20 01:42:20 C 06 46 43.08 +41 44 41.9 557
1998-12-20 01:43:36 C 06 46 42.51 +41 44 39.5 557
1998-12-20 10:23:27 C 06 43 01.45 +41 30 30.9 z 411
1998-12-20 10:45:24 C 06 42 52.22 +41 29 57.9 z 411
1998-12-20 10:50:17 C 06 42 50.03 +41 29 49.7 z 411
1998-12-20 11:50:16 C 06 42 24.13 +41 28 17.1 z 897
1998-12-20 12:04:14 C 06 42 18.55 +41 27 57.3 z 897
1998-12-20 12:12:59 C 06 42 14.82 +41 27 43.7 z 897
1998-12-20 12:19:48 C 06 42 11.77 +41 27 32.6 z 897
1998-12-20 12:25:44 C 06 42 09.19 +41 27 22.5 z 897
1998-12-20 12:34:05 C 06 42 05.90 +41 27 10.6 z 897
1998-12-20 13:17:44 C 06 41 46.98 +41 26 02.4 z 355
1998-12-20 13:22:03 C 06 41 45.17 +41 25 56.6 z 355
1998-12-20 14:19:54 C 06 41 20.41 +41 24 22.9 z 908
1998-12-20 14:24:14 C 06 41 18.58 +41 24 15.9 z 908
1998-12-20 14:29:15 C 06 41 16.43 +41 24 08.5 z 908
1998-12-20 15:06:45 C 06 41 00.60 +41 23 10.0 360
1998-12-20 15:10:45 C 06 40 58.88 +41 23 03.8 360
1998-12-20 15:14:44 C 06 40 57.19 +41 22 57.3 360
1998-12-21 01:26:13 C 06 36 48.43 +41 06 10.8 557
1998-12-21 01:28:56 C 06 36 47.30 +41 06 06.2 557
1998-12-21 01:30:17 C 06 36 46.76 +41 06 04.1 557
1998-12-21 11:52:01 C 06 32 50.71 +40 49 18.9 z 867
1998-12-21 11:58:00 C 06 32 48.43 +40 49 09.9 z 867
1998-12-21 12:09:14 C 06 32 43.93 +40 48 54.1 385
1998-12-21 12:09:31 C 06 32 43.96 +40 48 51.8 z 867
1998-12-21 12:32:41 C 06 32 35.05 +40 48 18.1 385
1998-12-21 12:46:27 C 06 32 29.63 +40 47 56.7 385
1998-12-21 14:38:58 C 06 31 46.36 +40 44 54.2 z 400
1998-12-21 14:58:03 C 06 31 39.11 +40 44 24.1 z 400
1998-12-21 15:03:35 C 06 31 36.92 +40 44 13.9 z 400