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
2017-10-15 08:23:24 C 02 29 05.13 +08 44 20.8 U G96
2017-10-15 08:30:58 C 02 29 04.67 +08 44 18.4 U G96
2017-10-16 11:56:53 C 02 27 24.64 +08 37 27.9 o 691
2017-10-16 12:04:47 C 02 27 24.15 +08 37 26.0 o 691
2017-10-16 12:12:32 C 02 27 23.62 +08 37 24.5 o 691
2017-10-18 11:24:52 C 02 24 28.867 +08 25 32.24 L F51
2017-10-18 11:44:28 C 02 24 27.597 +08 25 27.28 L F51
2017-10-18 12:03:55 C 02 24 26.369 +08 25 22.12 L F51
2017-10-18 12:23:23 C 02 24 25.097 +08 25 17.31 L F51
2017-10-23 07:16:58 C 02 17 04.58 +07 55 58.9 U G96
2017-10-23 07:24:27 C 02 17 04.09 +07 55 56.6 U G96
2017-10-23 07:31:57 C 02 17 03.57 +07 55 54.4 U G96
2017-10-23 07:39:28 C 02 17 03.07 +07 55 52.8 U G96
2017-10-28 10:51:29 C 02 08 59.033 +07 24 49.40 L F51
2017-10-28 11:09:43 C 02 08 57.803 +07 24 44.88 L F51
2017-10-28 11:27:56 C 02 08 56.575 +07 24 40.38 L F51
2017-10-28 11:46:10 C 02 08 55.352 +07 24 35.83 L F51
2017-11-13 07:56:01 C 01 45 24.071 +06 02 55.15 L F51
2017-11-13 08:15:03 C 01 45 22.981 +06 02 51.99 L F51
2017-11-13 08:34:03 C 01 45 21.890 +06 02 48.74 L F51
2017-11-13 08:53:08 C 01 45 20.804 +06 02 45.44 L F51
2017-11-17 05:45:04 C 01 40 25.22 +05 48 20.9 U G96
2017-11-17 05:52:38 C 01 40 24.86 +05 48 19.4 U G96
2017-11-17 06:00:07 C 01 40 24.43 +05 48 19.1 U G96
2017-11-17 06:07:40 C 01 40 24.05 +05 48 18.1 U G96
2017-11-24 05:05:42 C 01 32 45.92 +05 29 39.6 U G96
2017-11-24 05:23:40 C 01 32 45.19 +05 29 38.2 U G96
2017-11-24 05:31:12 C 01 32 44.85 +05 29 37.2 U G96
2017-11-24 05:38:43 C 01 32 44.52 +05 29 37.7 U G96
2017-11-24 07:03:11 C 01 32 40.98 +05 29 30.0 U G96
2017-11-24 07:14:24 C 01 32 40.51 +05 29 29.1 U G96
2017-11-24 07:25:46 C 01 32 40.03 +05 29 28.1 U G96
2017-11-24 07:36:41 C 01 32 39.58 +05 29 27.1 U G96
2019-09-22 10:54:59 C 03 19 02.94 +13 13 23.9 V G96
2019-09-22 11:01:17 C 03 19 02.80 +13 13 23.9 V G96
2019-09-22 11:11:28 C 03 19 02.63 +13 13 22.0 V G96
2019-09-24 11:33:03 C 03 18 05.244 +13 09 09.67 U F51
2019-09-24 11:50:53 C 03 18 04.848 +13 09 08.08 U F51
2019-09-24 12:08:43 C 03 18 04.430 +13 09 06.39 U F51
2019-09-24 12:26:36 C 03 18 04.017 +13 09 04.79 U F51
2019-09-30 08:47:39 C 03 14 22.39 +12 53 54.0 V G96
2019-09-30 08:55:45 C 03 14 22.15 +12 53 52.9 V G96
2019-09-30 09:03:52 C 03 14 21.91 +12 53 52.1 V G96
2019-09-30 09:11:59 C 03 14 21.62 +12 53 51.1 V G96
2019-10-05 11:14:22 C 03 10 03.632 +12 37 14.33 U F51
2019-10-05 11:30:27 C 03 10 02.972 +12 37 11.78 U F51
2019-10-05 11:46:39 C 03 10 02.312 +12 37 09.45 U F51
2019-10-05 12:02:53 C 03 10 01.642 +12 37 07.08 U F51
2019-10-09 10:54:12 C 03 06 00.239 +12 22 03.68 U F51
2019-10-09 11:10:40 C 03 05 59.480 +12 22 01.01 U F51