480823 (1998 YW5)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6203017857 ± 3.92e-08
Semi-major axis (a)1.2401854961 AU ± 1.91e-09
Inclination (i)8.34063091° ± 3.10e-06
Long. of Asc. Node (Ω)219.76914439° ± 2.33e-05
Arg. of Perihelion (ω)355.16832191° ± 2.64e-05
Mean Anomaly (M)118.78001424° ± 7.12e-06
Mean Motion (n)0.7136451263°/day ± 1.65e-09
Perihelion dist (q)0.47089622 AU ± 4.86e-08
Aphelion dist (Q)2.00947477 AU ± 4.87e-08
Orbital Period1.38111541 yr ± 3.19e-09
Physical Parameters
H (abs. magnitude)20.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.242″
Uncertainty0
Orbit TypeApollo
MOID0.128439 AU
Observations Used137
Oppositions7
Arc Total1998-2025
First Observation Used1998-12-19
Last Observation Used2025-10-12
Observations (159)
Date Type RA Dec Mag Band Observatory
1998-12-18 07:13:29 C 05 07 08.74 -00 44 29.5 c 699
1998-12-18 07:39:23 C 05 07 03.57 -00 45 15.1 c 699
1998-12-18 08:05:07 C 05 06 58.52 -00 45 58.8 c 699
1998-12-19 04:21:21 C 05 02 58.46 -01 21 52.4 19.4 a 704
1998-12-19 04:54:14 C 05 02 51.41 -01 22 50.8 20.3 a 704
1998-12-19 05:27:15 C 05 02 44.75 -01 23 48.7 20.2 a 704
1998-12-19 06:00:04 C 05 02 37.83 -01 24 48.6 19.9 a 704
1998-12-19 06:33:04 C 05 02 30.82 -01 25 45.9 19.9 a 704
1998-12-21 04:28:40 C 04 52 54.85 -02 49 41.6 19.0 a 704
1998-12-21 04:36:09 C 04 52 53.24 -02 49 56.2 a 704
1998-12-21 04:43:37 C 04 52 51.65 -02 50 12.6 a 704
1998-12-21 04:51:10 C 04 52 49.90 -02 50 22.7 a 704
1998-12-21 04:58:37 C 04 52 48.31 -02 50 38.2 19.3 a 704
1998-12-21 05:06:10 C 04 52 46.66 -02 50 52.3 a 704
1998-12-21 05:13:37 C 04 52 44.81 -02 51 07.9 19.3 a 704
1998-12-21 05:21:09 C 04 52 42.96 -02 51 18.7 a 704
1998-12-22 04:52:17 C 04 47 32.49 -03 35 36.1 19.0 a 704
1998-12-22 05:24:57 C 04 47 24.89 -03 36 36.4 19.2 a 704
1998-12-22 05:57:36 C 04 47 17.28 -03 37 40.1 19.1 a 704
1998-12-22 06:30:29 C 04 47 09.64 -03 38 41.1 19.0 a 704
1998-12-23 11:20:49 C 04 40 34.70 -04 34 05.5 z 402
1998-12-23 11:23:08 C 04 40 34.34 -04 34 09.6 z 402
1998-12-23 11:25:24 C 04 40 33.74 -04 34 13.8 z 402
1998-12-23 16:28:24 C 04 39 20.47 -04 43 28.8 422
1998-12-23 16:38:21 C 04 39 18.07 -04 43 49.1 422
1998-12-23 21:38:25 C 04 38 08.83 -04 54 10.0 046
1998-12-23 21:40:31 C 04 38 08.38 -04 54 15.1 046
1998-12-23 21:42:39 C 04 38 07.86 -04 54 19.4 046
1998-12-23 21:44:47 C 04 38 07.41 -04 54 22.5 046
2006-10-20 05:45:09 C 02 50 54.61 +17 27 58.3 o 695
2007-10-09 05:18:42 C 21 46 51.10 +00 40 18.5 o 705
2007-10-09 05:19:54 C 21 46 51.12 +00 40 17.7 o 705
2007-10-09 05:23:28 C 21 46 51.20 +00 40 15.3 o 705
2009-11-26 09:05:30 C 04 44 15.25 +12 26 36.4 r G96
2009-11-26 09:13:47 C 04 44 14.28 +12 26 30.6 r G96
2009-11-26 09:22:07 C 04 44 13.34 +12 26 25.2 r G96
2009-11-26 09:30:24 C 04 44 12.37 +12 26 19.0 r G96
2009-11-26 09:38:40 C 04 44 11.40 +12 26 13.4 r G96
2009-11-26 10:43:43 C 04 44 03.84 +12 25 26.9 r G96
2009-11-26 10:44:49 C 04 44 03.76 +12 25 26.6 r G96
2009-11-26 10:45:52 C 04 44 03.62 +12 25 25.7 r G96
2009-11-26 10:46:51 C 04 44 03.51 +12 25 24.9 r G96
2009-11-26 10:48:00 C 04 44 03.37 +12 25 23.8 r G96
2009-11-27 04:47:06 C 04 42 01.69 +12 12 43.9 o 291
2009-11-27 04:52:58 C 04 42 00.99 +12 12 39.8 o 291
2009-11-27 04:58:33 C 04 42 00.38 +12 12 36.0 o 291
2009-11-27 06:44:39 C 04 41 47.83 +12 11 20.9 r G96
2009-11-27 06:52:50 C 04 41 46.86 +12 11 14.9 r G96
2009-11-27 07:00:36 C 04 41 45.92 +12 11 09.4 r G96
2009-11-27 07:08:17 C 04 41 45.06 +12 11 04.3 r G96