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
2001-07-30 09:21:27 C 23 40 27.22 -20 14 43.9 18.0 c 704
2001-07-30 09:37:23 C 23 40 26.02 -20 14 54.5 18.6 c 704
2001-07-30 09:53:23 C 23 40 24.84 -20 15 05.2 18.7 c 704
2001-07-30 10:09:24 C 23 40 23.68 -20 15 15.1 18.6 c 704
2001-07-30 10:25:21 C 23 40 22.51 -20 15 24.7 18.2 c 704
2001-08-12 08:49:05 C 23 14 58.39 -23 20 10.8 18.1 c 644
2001-08-12 09:03:52 C 23 14 56.98 -23 20 18.5 18.5 c 644
2001-08-12 09:18:05 C 23 14 55.63 -23 20 25.9 18.2 c 644
2001-08-13 10:40:35 C 23 12 36.44 -23 33 22.1 19.0 c 608
2001-08-13 10:56:34 C 23 12 34.87 -23 33 29.4 18.9 c 608
2001-08-13 11:12:40 C 23 12 33.32 -23 33 38.2 18.6 c 608
2001-08-17 09:33:31 C 23 03 45.47 -24 17 48.2 18.2 c 644
2001-08-17 09:49:32 C 23 03 43.93 -24 17 55.0 18.2 c 644
2001-08-17 10:07:16 C 23 03 42.17 -24 18 02.6 18.2 c 644
2001-08-19 08:14:51 C 22 59 22.64 -24 36 58.9 18.5 c 704
2001-08-19 08:33:03 C 22 59 20.86 -24 37 06.8 18.5 c 704
2001-08-19 08:51:19 C 22 59 19.06 -24 37 13.7 18.3 c 704
2001-08-19 09:09:38 C 22 59 17.28 -24 37 20.4 18.3 c 704
2001-08-23 05:51:05 C 22 50 40.99 -25 09 38.0 18.4 c 644
2001-08-23 06:09:58 C 22 50 39.20 -25 09 44.1 18.3 c 644
2001-08-23 06:26:39 C 22 50 37.62 -25 09 49.6 18.4 c 644
2001-09-11 06:36:49 C 22 15 18.18 -25 57 59.2 19.9 c 704
2001-09-11 06:58:33 C 22 15 16.82 -25 57 57.9 19.7 c 704
2001-09-11 07:20:24 C 22 15 15.57 -25 57 56.4 19.8 c 704
2001-09-11 07:42:09 C 22 15 14.23 -25 57 53.4 20.0 c 704
2002-12-29 08:50:43 C 11 17 28.21 +19 47 51.2 c 649
2002-12-29 08:54:36 C 11 17 28.94 +19 47 50.3 c 649
2002-12-29 08:58:29 C 11 17 29.69 +19 47 49.1 c 649
2002-12-29 09:02:21 C 11 17 30.42 +19 47 48.2 c 649
2002-12-31 09:07:33 C 11 27 00.02 +19 33 44.0 18.0 c 704
2002-12-31 09:28:50 C 11 27 04.21 +19 33 37.9 18.3 c 704
2002-12-31 09:50:02 C 11 27 08.41 +19 33 31.8 18.2 c 704
2002-12-31 10:11:32 C 11 27 12.68 +19 33 25.4 18.1 c 704
2002-12-31 10:33:12 C 11 27 16.95 +19 33 18.7 18.2 c 704
2003-01-10 10:42:04 C 12 22 56.13 +17 45 47.2 16.8 c 704
2003-01-10 11:03:57 C 12 23 01.78 +17 45 33.7 17.3 c 704
2003-01-10 11:25:40 C 12 23 07.38 +17 45 20.5 17.7 c 704
2003-01-10 11:47:38 C 12 23 13.05 +17 45 06.4 17.6 c 704
2003-01-10 12:09:37 C 12 23 18.75 +17 44 52.5 17.4 c 704
2003-01-27 11:40:26 C 14 34 41.76 +10 11 12.9 17.6 c 704
2003-01-27 12:02:32 C 14 34 49.74 +10 10 37.1 17.2 c 704
2003-01-27 12:46:07 C 14 35 05.50 +10 09 24.9 17.5 c 704
2003-02-03 10:56:46 C 15 36 56.01 +05 11 02.8 c 699
2003-02-03 11:22:12 C 15 37 05.29 +05 10 14.8 c 699
2003-02-03 11:47:40 C 15 37 14.52 +05 09 26.4 c 699
2003-02-03 12:13:17 C 15 37 23.84 +05 08 38.2 c 699
2003-02-03 12:28:09 C 15 37 29.25 +05 08 10.3 c 699
2003-02-03 12:29:20 C 15 37 29.66 +05 08 07.9 c 699
2003-02-03 12:30:30 C 15 37 30.10 +05 08 05.8 c 699
2003-02-03 12:31:40 C 15 37 30.51 +05 08 03.3 c 699