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
1998-12-21 15:26:16 C 06 31 28.37 +40 43 42.8 i 888
1998-12-21 15:35:54 C 06 31 24.86 +40 43 27.2 z 900
1998-12-21 15:37:51 C 06 31 23.97 +40 43 24.4 i 888
1998-12-21 15:45:29 C 06 31 21.23 +40 43 11.8 z 900
1998-12-21 18:38:00 C 06 30 16.20 +40 38 28.4 360
1998-12-21 18:41:15 C 06 30 14.98 +40 38 22.9 360
1998-12-21 18:44:45 C 06 30 13.70 +40 38 17.0 360
1998-12-21 19:27:14 C 06 29 57.82 +40 37 02.8 i 888
1998-12-21 19:32:18 C 06 29 55.96 +40 36 54.5 i 888
1998-12-22 15:52:06 C 06 22 55.81 +40 04 37.3 i 888
1998-12-22 16:18:20 C 06 22 46.88 +40 03 55.4 i 888
1998-12-22 18:47:32 C 06 21 56.77 +39 59 51.8 385
1998-12-22 18:51:59 C 06 21 55.20 +39 59 45.5 385
1998-12-22 19:18:53 C 06 21 46.40 +39 59 00.5 385
1998-12-23 11:48:08 C 06 16 40.95 +39 33 19.8 z 402
1998-12-23 11:49:56 C 06 16 40.40 +39 33 16.7 z 402
1998-12-23 11:51:43 C 06 16 39.90 +39 33 13.4 z 402
1998-12-23 11:53:30 C 06 16 39.29 +39 33 11.2 z 402
1998-12-24 15:02:03 C 06 08 55.72 +38 52 07.9 i 888
1998-12-24 15:09:31 C 06 08 53.64 +38 51 57.0 i 888
1998-12-24 15:12:51 C 06 08 52.80 +38 51 52.9 385
1998-12-24 15:27:08 C 06 08 48.79 +38 51 31.4 385
1998-12-24 15:37:41 C 06 08 46.04 +38 51 16.6 385
1998-12-24 17:43:29 C 06 08 11.63 +38 48 05.7 360
1998-12-24 17:47:30 C 06 08 10.52 +38 47 59.4 360
1998-12-24 17:51:59 C 06 08 09.32 +38 47 52.8 360
1998-12-25 17:42:48 C 06 02 11.87 +38 13 16.6 i 888
1998-12-25 17:55:25 C 06 02 08.78 +38 12 57.8 i 888
1998-12-25 18:06:02 C 06 02 06.31 +38 12 42.1 i 888
1998-12-26 00:44:02 C 06 00 34.47 +38 03 15.8 046
1998-12-26 00:52:00 C 06 00 32.59 +38 03 04.7 046
1998-12-26 13:33:42 C 05 57 43.72 +37 45 39.3 385
1998-12-26 13:46:17 C 05 57 40.73 +37 45 22.0 385
1998-12-26 13:52:22 C 05 57 39.43 +37 45 13.8 385
1998-12-26 15:13:33 C 05 57 21.09 +37 43 22.7 i 888
1998-12-26 16:11:35 C 05 57 08.08 +37 42 01.8 i 888
1998-12-26 16:24:42 C 05 57 05.18 +37 41 43.6 i 888
1998-12-27 14:32:00 C 05 52 34.33 +37 12 14.8 z 402
1998-12-27 14:34:00 C 05 52 33.92 +37 12 12.1 z 402
1998-12-27 14:35:59 C 05 52 33.53 +37 12 09.5 z 402
1998-12-27 16:27:22 C 05 52 10.99 +37 09 42.9 385
1998-12-27 17:00:30 C 05 52 04.32 +37 08 58.6 385
1998-12-27 17:06:43 C 05 52 03.07 +37 08 49.0 385
1998-12-27 17:12:59 C 05 52 01.64 +37 08 42.3 385
1998-12-28 18:39:30 C 05 47 21.93 +36 36 23.5 i 888
1998-12-28 18:57:46 C 05 47 18.71 +36 35 59.8 i 888
1998-12-28 19:05:05 C 05 47 17.43 +36 35 50.4 i 888
1998-12-28 20:09:50 C 05 47 09.01 +36 34 33.3 046
1998-12-28 20:11:43 C 05 47 08.62 +36 34 30.2 046
1998-12-28 20:17:07 C 05 47 07.64 +36 34 23.9 046