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
2025-10-19 11:41:57 C 04 30 02.122 +19 47 44.17 X F52
2025-10-26 18:44:11 C 04 23 43.78 +19 46 40.1 V D29
2025-10-26 18:45:27 C 04 23 43.69 +19 46 40.4 V D29
2025-10-26 19:03:16 C 04 23 42.91 +19 46 40.1 V D29
2025-10-26 19:04:32 C 04 23 42.91 +19 46 39.9 V D29
2025-10-27 07:46:56 C 04 23 09.964 +19 46 26.33 V G96
2025-10-27 07:54:21 C 04 23 09.582 +19 46 26.29 V G96
2025-10-27 08:01:47 C 04 23 09.262 +19 46 25.25 V G96
2025-10-27 08:09:12 C 04 23 08.959 +19 46 25.72 V G96
2025-10-28 20:16:22 C 04 21 29.91 +19 45 39.4 V D29
2025-10-28 20:57:05 C 04 21 27.95 +19 45 38.0 V D29
2025-11-02 19:40:59 C 04 15 20.76 +19 41 45.9 V D29
2025-11-02 20:01:21 C 04 15 19.58 +19 41 44.6 V D29
2025-11-10 14:27:25 C 04 03 41.066 +19 31 07.10 X F52
2025-11-10 14:45:17 C 04 03 39.817 +19 31 05.66 X F52
2025-11-10 15:03:43 C 04 03 38.538 +19 31 04.17 X F52
2025-11-12 15:41:40 C 04 00 15.66 +19 27 17.6 V D29
2025-11-12 16:22:23 C 04 00 12.66 +19 27 14.2 V D29
2025-11-13 16:12:46 C 03 58 30.22 +19 25 14.3 V D29
2025-11-13 16:33:08 C 03 58 28.69 +19 25 12.5 V D29
2025-11-13 16:53:30 C 03 58 27.20 +19 25 10.7 V D29
2025-11-15 07:03:09 C 03 55 39.882 +19 21 46.76 V G96
2025-11-15 07:10:35 C 03 55 39.317 +19 21 45.97 V G96
2025-11-15 07:18:03 C 03 55 38.744 +19 21 45.29 V G96
2025-11-15 07:25:31 C 03 55 38.190 +19 21 44.64 V G96
2025-11-15 09:51:58 C 03 55 27.052 +19 21 30.71 V V00
2025-11-15 10:00:00 C 03 55 26.440 +19 21 29.84 V V00
2025-11-15 10:08:03 C 03 55 25.835 +19 21 29.16 V V00
2025-11-15 10:16:05 C 03 55 25.226 +19 21 28.37 V V00
2025-11-15 19:07:42 C 03 54 45.72 +19 20 38.2 V D29
2025-11-15 19:28:04 C 03 54 44.17 +19 20 36.2 V D29
2025-11-15 19:48:26 C 03 54 42.60 +19 20 34.1 V D29
2025-11-18 15:21:13 C 03 49 36.32 +19 13 49.9 V D29
2025-11-18 15:41:34 C 03 49 34.72 +19 13 47.7 V D29
2025-11-18 16:01:56 C 03 49 33.09 +19 13 45.7 V D29
2025-11-18 18:11:54 C 03 49 22.860 +19 13 38.42 V P07
2025-11-18 18:52:49 C 03 49 19.627 +19 13 33.67 V P07
2025-11-18 19:20:14 C 03 49 17.467 +19 13 31.30 V P07
2025-11-18 19:49:49 C 03 49 15.113 +19 13 27.34 V P07
2025-11-19 16:47:36 C 03 47 38.40 +19 11 06.4 V D29
2025-11-19 17:07:58 C 03 47 36.78 +19 11 04.0 V D29
2025-11-19 17:28:20 C 03 47 35.16 +19 11 02.0 V D29
2025-11-24 11:01:51 C 03 38 40.944 +18 57 50.85 X F51
2025-11-24 11:22:16 C 03 38 39.287 +18 57 48.26 X F51
2025-11-24 12:02:38 C 03 38 36.013 +18 57 43.03 X F51
2025-11-24 15:14:22 C 03 38 21.21 +18 57 18.4 V D29
2025-11-24 15:34:43 C 03 38 19.53 +18 57 15.5 V D29
2025-11-24 15:55:05 C 03 38 17.89 +18 57 13.3 V D29
2025-11-25 14:58:19 C 03 36 28.80 +18 54 20.8 V D29
2025-11-25 15:18:40 C 03 36 27.14 +18 54 18.3 V D29