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
2001-01-23 04:30:39 C 07 10 23.69 +47 37 03.1 642
2001-01-23 04:35:44 C 07 10 22.73 +47 37 11.4 642
2001-01-27 03:53:54 C 06 52 45.48 +50 07 05.5 642
2001-01-27 04:00:03 C 06 52 44.29 +50 07 14.4 642
2001-01-27 04:03:56 C 06 52 43.50 +50 07 21.1 642
2001-01-27 04:05:51 C 06 52 42.88 +50 07 23.7 642
2001-01-28 00:23:23 C 06 48 30.39 +50 38 55.6 939
2001-01-28 00:31:43 C 06 48 28.51 +50 39 07.7 939
2001-01-28 00:40:03 C 06 48 26.69 +50 39 20.3 939
2001-01-28 03:07:24 C 06 47 59.33 +50 42 59.7 642
2001-01-28 03:11:14 C 06 47 58.29 +50 43 05.8 642
2001-01-28 03:15:09 C 06 47 57.53 +50 43 12.2 642
2001-01-28 03:19:02 C 06 47 56.80 +50 43 18.2 642
2001-01-28 05:35:26 C 06 47 26.64 +50 47 03.4 670
2001-01-28 07:03:32 C 06 47 06.84 +50 49 18.5 670
2001-01-28 08:50:55 C 06 46 42.76 +50 51 59.2 670
2001-01-28 17:19:45 C 06 44 58.12 +51 04 46.3 557
2001-01-28 18:29:50 C 06 44 42.53 +51 06 37.8 557
2001-01-28 19:45:40 C 06 44 25.46 +51 08 36.8 557
2001-01-28 20:45:54 C 06 44 11.78 +51 10 10.0 557
2001-01-28 22:25:34 C 06 43 49.11 +51 12 41.6 557
2001-01-28 23:40:43 C 06 43 32.07 +51 14 33.4 557
2001-01-29 19:53:36 C 06 39 05.73 +51 45 08.8 049
2001-01-29 19:56:34 C 06 39 05.04 +51 45 13.2 049
2001-01-29 19:59:24 C 06 39 04.37 +51 45 17.6 049
2001-01-30 21:54:31 C 06 33 05.38 +52 24 12.3 201
2001-01-30 22:19:09 C 06 32 59.23 +52 24 48.5 201
2001-01-30 22:30:05 C 06 32 56.56 +52 25 04.3 201
2001-01-31 20:20:04 C 06 27 44.18 +52 57 07.5 201
2001-02-01 04:52:20 C 06 25 37.48 +53 09 40.4 711
2001-02-01 04:59:00 C 06 25 35.75 +53 09 49.9 711
2001-02-01 05:05:31 C 06 25 33.99 +53 09 59.2 711
2001-02-03 23:10:53 C 06 08 19.23 +54 42 04.0 15.9 939
2001-02-03 23:19:14 C 06 08 16.80 +54 42 14.9 15.9 939
2001-02-03 23:27:35 C 06 08 14.39 +54 42 25.4 16.1 939
2001-02-04 18:08:49 C 06 03 05.86 +55 07 09.2 151
2001-02-04 18:12:02 C 06 03 04.82 +55 07 14.1 151
2001-02-04 18:13:11 C 06 03 04.55 +55 07 15.2 151
2001-02-04 18:14:43 C 06 03 04.13 +55 07 17.1 151
2001-02-04 18:17:59 C 06 03 03.19 +55 07 21.7 151
2001-02-04 18:20:22 C 06 03 02.47 +55 07 25.0 151
2001-02-06 18:52:17 C 05 48 49.47 +56 08 41.4 151
2001-02-06 18:56:15 C 05 48 48.15 +56 08 46.7 151
2001-02-06 18:57:44 C 05 48 47.72 +56 08 48.2 151
2001-02-06 19:00:46 C 05 48 46.75 +56 08 51.5 151
2001-02-06 19:03:52 C 05 48 45.81 +56 08 55.2 151
2001-02-06 19:08:43 C 05 48 44.23 +56 09 01.4 151
2001-02-09 10:50:01 C 05 28 30.03 +57 21 32.7 355
2001-02-09 10:52:30 C 05 28 29.13 +57 21 34.9 355
2001-02-09 10:57:48 C 05 28 27.28 +57 21 39.8 355