163051 (2001 YJ4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5665198360 ± 1.31e-08
Semi-major axis (a)2.2754742291 AU ± 1.51e-09
Inclination (i)9.28086117° ± 2.33e-06
Long. of Asc. Node (Ω)247.76892648° ± 1.39e-05
Arg. of Perihelion (ω)322.38895330° ± 1.41e-05
Mean Anomaly (M)323.56866412° ± 1.83e-06
Mean Motion (n)0.2871470734°/day ± 2.85e-10
Perihelion dist (q)0.98637294 AU ± 2.98e-08
Aphelion dist (Q)3.56457552 AU ± 2.99e-08
Orbital Period3.43247894 yr ± 3.41e-09
Physical Parameters
H (abs. magnitude)16.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.343″
Uncertainty0
Orbit TypeApollo
MOID0.032094 AU
Observations Used1129
Oppositions34
Arc Total1978-2026
First Observation Used1978-02-05
Last Observation Used2026-01-11
Observations (1362)
Date Type RA Dec Mag Band Observatory
2002-07-28 22:21:10 C 20 43 47.54 +02 09 16.5 c 560
2002-07-28 22:28:13 C 20 43 46.98 +02 09 13.8 c 560
2002-07-29 21:38:52 C 20 42 20.15 +02 02 07.1 c 151
2002-07-29 21:40:40 C 20 42 20.00 +02 02 06.4 c 151
2002-07-29 21:43:11 C 20 42 19.86 +02 02 05.9 c 151
2002-07-29 21:46:30 C 20 42 19.65 +02 02 04.5 c 151
2002-08-03 02:15:17 C 20 36 20.44 +01 29 00.8 m 859
2002-08-03 05:02:19 C 20 36 11.21 +01 27 51.0 17.1 c 644
2002-08-03 05:47:15 C 20 36 08.58 +01 27 35.9 17.0 c 644
2002-08-03 06:49:06 C 20 36 04.90 +01 27 14.2 17.1 c 644
2002-08-04 05:32:02 C 20 34 48.72 +01 19 12.1 17.0 c 644
2002-08-04 05:47:42 C 20 34 47.81 +01 19 06.5 17.0 c 644
2002-08-04 06:03:29 C 20 34 46.88 +01 19 00.8 17.0 c 644
2002-08-04 21:28:35 C 20 33 56.08 +01 13 27.4 c 157
2002-08-04 21:31:07 C 20 33 55.92 +01 13 26.0 c 157
2002-08-04 21:33:41 C 20 33 55.76 +01 13 25.2 c 157
2002-08-04 21:36:16 C 20 33 55.73 +01 13 24.5 c 157
2002-08-06 01:59:05 C 20 32 24.39 +01 03 16.5 859
2002-08-06 02:06:52 C 20 32 23.88 +01 03 11.9 859
2002-08-06 02:13:43 C 20 32 23.51 +01 03 10.6 859
2002-08-12 05:37:01 C 20 25 20.46 +00 06 43.0 18.6 c 704
2002-08-12 05:58:45 C 20 25 19.46 +00 06 33.8 18.6 c 704
2002-08-12 06:20:30 C 20 25 18.46 +00 06 25.3 18.7 c 704
2002-08-12 06:42:12 C 20 25 17.48 +00 06 17.2 18.6 c 704
2002-08-12 07:03:58 C 20 25 16.50 +00 06 08.4 18.6 c 704
2002-08-14 22:45:48 C 20 22 42.21 -00 18 53.7 c 215
2002-08-14 22:46:54 C 20 22 42.16 -00 18 54.3 c 215
2002-08-14 22:47:40 C 20 22 42.13 -00 18 54.6 c 215
2002-08-15 20:03:42 C 20 21 54.85 -00 27 16.3 c 151
2002-08-15 20:05:19 C 20 21 54.80 -00 27 17.8 c 151
2002-08-15 20:08:45 C 20 21 54.64 -00 27 18.9 c 151
2002-08-15 20:13:16 C 20 21 54.48 -00 27 20.7 c 151
2002-09-03 03:25:41 C 20 12 44.10 -03 10 43.9 18.4 c 644
2002-09-03 03:56:05 C 20 12 43.85 -03 10 54.3 18.5 c 644
2002-09-03 04:26:52 C 20 12 43.60 -03 11 04.5 18.5 c 644
2002-09-21 03:09:00 C 20 15 33.99 -05 12 14.6 o 644
2002-09-21 04:09:46 C 20 15 34.98 -05 12 28.2 o 644
2002-10-05 02:27:21 C 20 23 48.38 -06 12 31.4 o 644
2002-10-05 02:42:42 C 20 23 48.85 -06 12 33.6 o 644
2004-12-08 06:58:20 C 04 28 49.66 +20 54 26.5 r 734
2004-12-08 07:10:38 C 04 28 48.58 +20 54 22.6 r 734
2004-12-08 07:22:56 C 04 28 48.04 +20 54 18.1 r 734
2004-12-08 07:35:55 C 04 28 47.26 +20 54 15.9 r 734
2004-12-11 04:11:02 C 04 24 56.81 +20 38 15.7 o 715
2004-12-11 04:20:46 C 04 24 56.20 +20 38 12.5 o 715
2004-12-11 04:30:31 C 04 24 55.67 +20 38 09.9 o 715
2004-12-12 04:32:44 C 04 23 35.46 +20 32 31.5 o 715
2004-12-12 04:44:25 C 04 23 34.76 +20 32 28.6 o 715
2004-12-12 04:56:08 C 04 23 34.13 +20 32 26.1 o 715
2004-12-13 21:04:11 C 04 21 21.30 +20 22 55.5 c 599