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
2019-10-09 11:27:05 C 03 05 58.705 +12 21 58.36 U F51
2019-10-09 11:43:36 C 03 05 57.928 +12 21 55.34 U F51
2019-10-09 13:40:44 C 03 05 52.376 +12 21 35.56 U F52
2019-10-09 13:56:29 C 03 05 51.641 +12 21 32.94 U F52
2019-10-09 14:12:17 C 03 05 50.877 +12 21 30.32 U F52
2019-10-25 06:30:05 C 02 44 50.61 +11 06 17.7 V G96
2019-10-25 06:36:51 C 02 44 50.16 +11 06 16.7 V G96
2019-10-25 06:43:37 C 02 44 49.74 +11 06 14.8 V G96
2019-10-25 06:50:21 C 02 44 49.28 +11 06 13.5 V G96
2019-10-26 07:30:33 C 02 43 13.85 +11 00 40.9 V G96
2019-10-26 07:40:28 C 02 43 13.18 +11 00 38.6 V G96
2019-10-26 07:49:12 C 02 43 12.60 +11 00 36.8 V G96
2019-10-26 07:56:39 C 02 43 12.10 +11 00 35.2 V G96
2019-11-02 11:39:46 C 02 31 47.404 +10 21 22.33 U F52
2019-11-02 11:55:30 C 02 31 46.317 +10 21 18.70 U F52
2019-11-02 12:11:20 C 02 31 45.216 +10 21 14.96 U F52
2019-11-02 12:27:09 C 02 31 44.139 +10 21 11.35 U F52
2019-11-08 04:26:45 C 02 22 36.59 +09 50 40.8 V G96
2019-11-08 04:32:53 C 02 22 36.17 +09 50 39.4 V G96
2019-11-08 04:38:59 C 02 22 35.77 +09 50 38.3 V G96
2019-11-08 04:45:07 C 02 22 35.35 +09 50 36.7 V G96
2020-01-26 01:56:23 C 01 52 46.97 +11 11 16.8 V G96
2020-01-26 02:04:40 C 01 52 47.28 +11 11 19.5 V G96
2020-01-26 02:12:59 C 01 52 47.62 +11 11 22.6 V G96
2020-01-26 02:21:15 C 01 52 47.83 +11 11 25.0 V G96
2021-10-02 10:47:27 C 03 39 14.496 +15 19 35.39 U F52
2021-10-02 11:02:59 C 03 39 14.085 +15 19 34.30 U F52
2021-10-02 11:18:32 C 03 39 13.671 +15 19 33.22 U F52
2021-10-07 07:53:29 C 03 35 51.09 +15 09 54.8 V G96
2021-10-07 08:00:59 C 03 35 50.83 +15 09 54.1 V G96
2021-10-07 08:08:26 C 03 35 50.59 +15 09 53.6 V G96
2021-10-07 08:15:53 C 03 35 50.31 +15 09 51.8 V G96
2021-10-13 14:15:13 C 03 30 04.746 +14 53 41.50 U F51
2021-10-13 14:20:09 C 03 30 04.537 +14 53 40.91 U F51
2021-10-13 14:29:44 C 03 30 04.104 +14 53 39.81 U F51
2021-10-13 14:34:42 C 03 30 03.873 +14 53 39.13 U F51
2021-10-13 14:44:20 C 03 30 03.444 +14 53 38.09 U F51
2021-10-13 14:49:18 C 03 30 03.215 +14 53 37.37 U F51
2021-10-13 15:04:11 C 03 30 02.552 +14 53 35.36 U F51
2021-10-27 12:15:30 C 03 12 06.818 +14 02 59.57 U F52
2021-10-27 12:34:25 C 03 12 05.593 +14 02 56.17 U F52
2021-10-27 13:11:41 C 03 12 03.186 +14 02 49.55 U F52
2021-10-31 07:46:00 C 03 06 12.19 +13 46 07.8 V 703
2021-10-31 08:01:07 C 03 06 11.06 +13 46 00.7 V 703
2021-10-31 08:08:41 C 03 06 10.53 +13 45 59.1 V 703
2021-11-01 09:28:20 C 03 04 29.251 +13 41 11.71 U F51
2021-11-01 09:44:09 C 03 04 28.161 +13 41 08.73 U F51
2021-11-01 09:59:59 C 03 04 27.069 +13 41 05.67 U F51
2021-11-06 11:00:15 C 02 56 08.982 +13 17 15.15 U F52
2021-11-06 11:17:44 C 02 56 07.723 +13 17 11.34 U F52