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
1978-02-05 15:32:01 10 31 15.66 -27 39 27.8 c 260
1978-02-05 16:42:01 10 31 19.09 -27 42 17.0 c 260
2001-12-22 13:11:53 C 10 15 20.15 -03 25 26.6 19.3 c 608
2001-12-22 13:27:14 C 10 15 21.29 -03 25 43.9 19.1 c 608
2001-12-22 13:42:20 C 10 15 22.40 -03 26 00.7 19.0 c 608
2001-12-24 01:29:41 C 10 18 08.61 -04 06 08.2 c 046
2001-12-24 01:33:42 C 10 18 08.96 -04 06 13.4 c 046
2001-12-24 01:38:53 C 10 18 09.43 -04 06 18.6 c 046
2001-12-24 01:40:24 C 10 18 09.60 -04 06 19.7 c 046
2001-12-24 01:41:52 C 10 18 09.82 -04 06 23.0 c 046
2001-12-24 12:41:59 C 10 19 00.76 -04 18 52.3 18.4 c 644
2001-12-24 12:57:22 C 10 19 01.95 -04 19 10.2 18.2 c 644
2001-12-24 13:14:21 C 10 19 03.25 -04 19 29.8 18.5 c 644
2001-12-24 13:23:12 C 10 19 04.34 -04 19 38.6 18.9 c 608
2001-12-24 13:38:18 C 10 19 05.52 -04 19 55.9 19.0 c 608
2001-12-24 13:54:39 C 10 19 06.70 -04 20 14.2 18.9 c 608
2001-12-26 12:06:02 C 10 22 44.57 -05 14 00.7 19.4 c 644
2001-12-26 12:21:48 C 10 22 45.79 -05 14 19.1 18.8 c 644
2001-12-26 12:36:14 C 10 22 46.89 -05 14 36.2 18.6 c 644
2001-12-26 13:07:47 C 10 22 49.72 -05 15 12.9 18.7 c 608
2001-12-26 13:23:03 C 10 22 50.89 -05 15 30.9 18.6 c 608
2001-12-26 13:38:12 C 10 22 52.07 -05 15 48.3 18.4 c 608
2001-12-27 05:19:49 C 10 24 07.30 -05 34 20.6 c 844
2001-12-27 05:29:32 C 10 24 07.92 -05 34 31.6 c 844
2001-12-27 05:36:55 C 10 24 08.54 -05 34 40.0 c 844
2001-12-27 05:46:07 C 10 24 09.32 -05 34 50.9 c 844
2002-01-01 17:20:37 C 10 34 55.13 -08 20 46.7 c 413
2002-01-01 17:22:19 C 10 34 55.24 -08 20 49.1 c 413
2002-01-01 17:24:00 C 10 34 55.41 -08 20 51.1 c 413
2002-01-03 17:13:24 C 10 38 59.72 -09 25 26.6 c 413
2002-01-03 17:15:43 C 10 38 59.91 -09 25 29.9 c 413
2002-01-03 17:18:03 C 10 39 00.11 -09 25 33.0 c 413
2002-01-04 10:22:37 C 10 40 28.95 -09 49 27.4 c 670
2002-01-04 10:52:26 C 10 40 31.49 -09 50 08.5 c 670
2002-01-04 12:20:04 C 10 40 38.78 -09 52 10.0 c 670
2002-01-05 02:10:39 C 10 41 51.62 -10 11 38.7 104
2002-01-05 02:13:20 C 10 41 51.79 -10 11 42.2 104
2002-01-05 02:16:01 C 10 41 52.04 -10 11 46.4 104
2002-01-05 02:18:41 C 10 41 52.28 -10 11 50.4 104
2002-01-05 10:39:06 C 10 42 36.37 -10 23 37.9 c 670
2002-01-05 12:20:09 C 10 42 44.99 -10 26 01.8 c 670
2002-01-05 15:51:19 C 10 43 04.40 -10 30 49.1 c 322
2002-01-05 16:54:13 C 10 43 09.78 -10 32 16.3 c 322
2002-01-05 17:50:55 C 10 43 14.66 -10 33 38.5 c 322
2002-01-08 09:43:18 C 10 49 00.16 -12 07 36.1 c 670
2002-01-08 12:16:10 C 10 49 13.66 -12 11 27.3 c 670
2002-01-08 13:36:44 C 10 49 20.81 -12 13 27.7 c 670
2002-01-10 10:42:41 C 10 53 34.46 -13 22 48.2 c 670
2002-01-10 11:13:56 C 10 53 37.19 -13 23 37.7 c 670
2002-01-10 12:25:42 C 10 53 43.87 -13 25 29.0 c 670