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
1998-12-28 20:18:49 C 05 47 07.33 +36 34 22.1 046
1999-01-03 06:59:55 C 05 29 42.98 +34 13 53.3 658
1999-01-03 07:04:28 C 05 29 42.46 +34 13 49.0 658
1999-01-03 07:08:23 C 05 29 42.05 +34 13 45.1 658
1999-01-05 11:45:31 C 05 24 57.39 +33 27 25.6 z 867
1999-01-05 12:06:02 C 05 24 55.61 +33 27 08.8 z 867
1999-01-05 12:15:32 C 05 24 54.78 +33 27 00.7 z 867
1999-01-05 12:26:16 C 05 24 53.88 +33 26 52.5 z 402
1999-01-05 12:28:34 C 05 24 53.60 +33 26 50.0 z 402
1999-01-05 12:30:52 C 05 24 53.41 +33 26 47.5 z 402
1999-01-08 05:39:54 C 05 20 17.97 +32 36 04.6 a 658
1999-01-08 05:52:18 C 05 20 17.18 +32 35 55.5 a 658
1999-01-08 05:58:50 C 05 20 16.75 +32 35 51.0 a 658
1999-01-09 10:58:28 C 05 18 37.82 +32 15 29.0 z 411
1999-01-09 11:12:37 C 05 18 36.99 +32 15 20.0 z 411
1999-01-09 11:26:45 C 05 18 36.22 +32 15 10.3 z 411
2007-12-06 09:24:42 C 09 47 50.56 +26 13 41.4 r 703
2007-12-06 09:34:10 C 09 47 47.79 +26 13 56.0 r 703
2007-12-06 09:43:31 C 09 47 44.91 +26 14 09.5 r 703
2007-12-06 09:52:57 C 09 47 42.10 +26 14 25.0 r 703
2007-12-06 10:40:32 C 09 47 27.85 +26 15 36.4 r 703
2007-12-06 10:46:47 C 09 47 25.29 +26 15 43.1 o H55
2007-12-06 10:51:27 C 09 47 23.88 +26 15 50.1 o H55
2007-12-06 10:53:05 C 09 47 23.96 +26 15 55.3 r 703
2007-12-06 10:55:41 C 09 47 22.60 +26 15 56.4 o H55
2007-12-06 11:05:09 C 09 47 20.40 +26 16 13.3 r 703
2007-12-06 11:17:12 C 09 47 16.80 +26 16 32.2 r 703
2007-12-06 11:33:00 C 09 47 12.03 +26 16 55.0 r 703
2007-12-06 11:39:55 C 09 47 09.95 +26 17 05.4 r 703
2007-12-06 11:46:51 C 09 47 07.85 +26 17 16.4 r 703
2007-12-06 11:53:44 C 09 47 05.75 +26 17 27.0 r 703
2007-12-14 18:37:10 C 08 47 20.27 +30 17 27.7 o 300
2007-12-14 18:40:50 C 08 47 19.10 +30 17 31.1 o 300
2007-12-14 18:44:30 C 08 47 18.03 +30 17 34.7 o 300
2007-12-14 18:48:11 C 08 47 16.87 +30 17 37.6 o 300
2007-12-14 18:51:52 C 08 47 15.75 +30 17 40.6 o 300
2007-12-15 09:16:22 C 08 42 56.77 +30 30 08.1 r 703
2007-12-15 09:26:47 C 08 42 53.60 +30 30 18.2 r 703
2007-12-15 09:37:10 C 08 42 50.47 +30 30 25.9 r 703
2007-12-15 09:47:37 C 08 42 47.19 +30 30 35.7 r 703
2007-12-17 18:04:32 C 08 26 05.60 +31 12 25.1 o D62
2007-12-17 18:05:32 C 08 26 05.33 +31 12 25.6 o D62
2007-12-17 18:06:34 C 08 26 04.96 +31 12 26.6 o D62
2007-12-17 18:07:39 C 08 26 04.67 +31 12 26.1 o D62
2007-12-17 18:09:38 C 08 26 04.12 +31 12 27.4 o D62
2007-12-17 18:11:36 C 08 26 03.53 +31 12 29.2 o D62
2007-12-17 18:12:36 C 08 26 03.24 +31 12 30.7 o D62
2007-12-17 18:13:37 C 08 26 02.85 +31 12 31.4 o D62
2007-12-17 18:16:39 C 08 26 01.93 +31 12 32.9 o D62
2007-12-18 07:47:37 C 08 22 06.59 +31 20 57.9 19.4 c 704