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
2000-12-26 16:07:07 C 08 06 28.75 +33 05 49.0 360
2000-12-26 16:11:14 C 08 06 28.63 +33 05 53.0 360
2000-12-26 16:14:28 C 08 06 28.53 +33 05 56.1 360
2000-12-28 08:55:45 C 08 05 23.97 +33 44 53.2 711
2000-12-28 09:09:37 C 08 05 23.50 +33 45 06.8 711
2000-12-28 09:18:54 C 08 05 23.15 +33 45 15.9 711
2001-01-04 06:33:36 C 07 58 30.84 +36 45 09.2 c 699
2001-01-04 07:07:37 C 07 58 28.75 +36 45 50.5 c 699
2001-01-04 07:41:33 C 07 58 26.63 +36 46 31.5 c 699
2001-01-04 08:15:31 C 07 58 24.51 +36 47 12.4 c 699
2001-01-05 07:14:23 C 07 57 05.41 +37 15 03.7 16.6 c 704
2001-01-05 07:36:08 C 07 57 03.96 +37 15 30.3 17.3 c 704
2001-01-05 07:58:09 C 07 57 02.48 +37 15 57.2 16.4 c 704
2001-01-05 08:20:54 C 07 57 00.97 +37 16 25.0 17.2 c 704
2001-01-05 08:42:18 C 07 56 59.53 +37 16 51.5 16.5 c 704
2001-01-06 07:11:34 C 07 55 36.49 +37 44 48.5 16.6 c 704
2001-01-06 07:32:51 C 07 55 34.94 +37 45 15.0 17.1 c 704
2001-01-06 07:54:01 C 07 55 33.48 +37 45 41.3 16.6 c 704
2001-01-12 01:36:31 C 07 44 45.83 +40 50 13.0 118
2001-01-12 01:46:43 C 07 44 44.82 +40 50 27.3 118
2001-01-14 00:13:46 C 07 40 09.58 +41 57 31.6 557
2001-01-14 00:42:08 C 07 40 06.42 +41 58 12.7 557
2001-01-14 01:12:44 C 07 40 03.02 +41 58 57.0 557
2001-01-14 02:13:57 C 07 39 56.26 +42 00 24.7 557
2001-01-14 04:19:12 C 07 39 42.65 +42 03 23.1 557
2001-01-14 22:23:38 C 07 37 47.37 +42 30 10.0 049
2001-01-14 22:27:43 C 07 37 46.90 +42 30 16.2 049
2001-01-14 22:31:58 C 07 37 46.39 +42 30 22.3 049
2001-01-15 04:27:00 C 07 37 08.11 +42 39 26.1 720
2001-01-15 04:41:30 C 07 37 06.34 +42 39 48.3 720
2001-01-15 17:04:35 C 07 35 42.39 +42 58 00.0 557
2001-01-15 18:45:24 C 07 35 30.57 +43 00 36.9 557
2001-01-15 22:31:53 C 07 35 02.92 +43 06 24.6 557
2001-01-16 02:46:24 C 07 34 31.47 +43 12 42.7 557
2001-01-16 14:54:25 C 07 33 05.75 +43 31 17.8 886
2001-01-16 15:11:24 C 07 33 03.42 +43 31 44.5 886
2001-01-16 15:57:52 C 07 32 57.46 +43 32 53.5 886
2001-01-16 16:17:43 C 07 32 54.91 +43 33 23.9 886
2001-01-17 06:21:48 C 07 31 11.94 +43 54 54.8 16.4 c 704
2001-01-17 06:45:30 C 07 31 08.70 +43 55 30.7 13.9 c 704
2001-01-17 07:08:04 C 07 31 05.59 +43 56 05.3 14.4 c 704
2001-01-17 07:29:56 C 07 31 02.66 +43 56 38.4 14.5 c 704
2001-01-17 07:51:57 C 07 30 59.51 +43 57 11.9 15.0 c 704
2001-01-17 14:49:32 C 07 30 07.10 +44 07 50.7 886
2001-01-17 14:55:12 C 07 30 06.30 +44 07 59.4 886
2001-01-17 15:09:31 C 07 30 04.35 +44 08 21.5 886
2001-01-21 22:24:30 C 07 15 18.72 +46 49 35.0 939
2001-01-21 22:32:51 C 07 15 17.19 +46 49 46.6 939
2001-01-21 22:41:11 C 07 15 15.86 +46 50 01.3 939
2001-01-23 04:26:59 C 07 10 24.29 +47 36 58.8 642