20429 (1998 YN1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4640786739 ± 1.59e-08
Semi-major axis (a)1.5559503243 AU ± 1.87e-09
Inclination (i)6.30191602° ± 2.25e-06
Long. of Asc. Node (Ω)61.72842223° ± 2.13e-05
Arg. of Perihelion (ω)147.70296024° ± 2.17e-05
Mean Anomaly (M)245.55338327° ± 1.12e-05
Mean Motion (n)0.5078303879°/day ± 9.16e-10
Perihelion dist (q)0.83386696 AU ± 2.48e-08
Aphelion dist (Q)2.27803369 AU ± 2.49e-08
Orbital Period1.94085724 yr ± 3.50e-09
Physical Parameters
H (abs. magnitude)17.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.339″
Uncertainty0
Orbit TypeApollo
MOID0.056985 AU
Observations Used706
Oppositions14
Arc Total1998-2026
First Observation Used1998-12-16
Last Observation Used2026-01-12
Observations (745)
Date Type RA Dec Mag Band Observatory
1998-12-16 05:09:09 C 06 04 05.46 +30 07 18.6 18.2 a 704
1998-12-16 06:21:36 C 06 03 58.71 +30 07 48.1 19.7 a 704
1998-12-16 08:44:10 C 06 03 45.06 +30 08 43.2 19.0 a 704
1998-12-16 09:53:08 C 06 03 38.71 +30 09 11.3 18.4 a 704
1998-12-17 02:02:54 C 06 02 09.30 +30 15 23.6 557
1998-12-17 02:05:55 C 06 02 09.04 +30 15 24.2 557
1998-12-17 03:44:27 C 06 01 59.62 +30 16 01.8 046
1998-12-17 03:52:37 C 06 01 58.83 +30 16 04.3 046
1998-12-17 03:55:43 C 06 01 58.56 +30 16 05.6 046
1998-12-17 03:57:55 C 06 01 58.32 +30 16 07.0 046
1998-12-17 04:01:55 C 06 01 57.99 +30 16 08.3 046
1998-12-17 04:17:10 C 06 01 57.89 +30 16 18.6 18.2 a 704
1998-12-17 04:50:43 C 06 01 54.74 +30 16 32.3 18.8 a 704
1998-12-17 05:24:12 C 06 01 51.45 +30 16 44.6 19.2 a 704
1998-12-17 05:57:28 C 06 01 48.14 +30 16 58.0 18.4 a 704
1998-12-17 07:02:58 C 06 01 41.81 +30 17 22.4 18.5 a 704
1998-12-17 07:36:15 C 06 01 38.59 +30 17 36.3 18.3 a 704
1998-12-17 08:09:44 C 06 01 35.20 +30 17 50.2 19.3 a 704
1998-12-17 08:43:03 C 06 01 32.07 +30 18 04.2 18.8 a 704
1998-12-17 09:16:12 C 06 01 28.54 +30 18 18.3 19.0 a 704
1998-12-17 09:47:48 C 06 01 25.74 +30 18 26.2 17.9 a 704
1998-12-17 10:20:25 C 06 01 22.48 +30 18 38.8 19.8 a 704
1998-12-17 10:53:10 C 06 01 19.47 +30 18 51.2 18.4 a 704
1998-12-17 11:25:56 C 06 01 16.33 +30 19 03.8 18.7 a 704
1998-12-17 11:46:07 C 06 01 15.80 +30 19 11.3 z 402
1998-12-17 11:48:08 C 06 01 15.61 +30 19 12.5 z 402
1998-12-17 11:50:09 C 06 01 15.44 +30 19 12.7 z 402
1998-12-17 11:52:09 C 06 01 15.23 +30 19 13.8 z 402
1998-12-17 20:55:52 C 06 00 23.49 +30 22 41.8 046
1998-12-17 20:57:08 C 06 00 23.35 +30 22 41.7 046
1998-12-17 20:59:11 C 06 00 23.15 +30 22 42.9 046
1998-12-17 21:00:57 C 06 00 23.02 +30 22 43.3 046
1998-12-17 23:04:11 C 06 00 10.89 +30 23 31.1 118
1998-12-17 23:10:01 C 06 00 10.33 +30 23 33.3 118
1998-12-17 23:13:41 C 06 00 09.98 +30 23 34.6 118
1998-12-17 23:31:43 C 06 00 08.15 +30 23 41.4 557
1998-12-17 23:34:54 C 06 00 07.86 +30 23 42.7 557
1998-12-18 03:20:46 C 05 59 47.00 +30 25 10.2 734
1998-12-18 03:31:31 C 05 59 45.93 +30 25 14.6 734
1998-12-18 03:36:24 C 05 59 45.38 +30 25 15.7 734
1998-12-18 14:19:18 C 05 58 42.97 +30 29 23.9 z 402
1998-12-18 14:21:18 C 05 58 42.78 +30 29 24.5 z 402
1998-12-18 14:23:17 C 05 58 42.57 +30 29 25.3 z 402
1998-12-18 20:18:28 C 05 58 08.24 +30 31 36.4 540
1998-12-18 20:28:16 C 05 58 07.23 +30 31 40.4 540
1998-12-18 20:37:54 C 05 58 06.46 +30 31 45.1 540
1998-12-18 22:13:45 C 05 57 57.00 +30 32 21.0 z 108
1998-12-18 22:20:04 C 05 57 56.23 +30 32 23.9 z 108
1998-12-18 22:26:55 C 05 57 55.46 +30 32 26.7 z 108
1998-12-19 09:06:33 C 05 56 52.07 +30 36 27.2 658