2017 UR4

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3564427030 ± 3.34e-07
Semi-major axis (a)1.4655728698 AU ± 1.49e-08
Inclination (i)21.74474718° ± 2.74e-05
Long. of Asc. Node (Ω)211.10360967° ± 1.15e-05
Arg. of Perihelion (ω)311.19721093° ± 4.06e-05
Mean Anomaly (M)98.85664173° ± 4.96e-05
Mean Motion (n)0.5555218569°/day ± 8.47e-09
Perihelion dist (q)0.94318011 AU ± 4.89e-07
Aphelion dist (Q)1.98796562 AU ± 4.89e-07
Orbital Period1.77423493 yr ± 2.71e-08
Physical Parameters
H (abs. magnitude)20.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.276″
Uncertainty0
Orbit TypeApollo
MOID0.027072 AU
Observations Used78
Oppositions4
Arc Total2010-2019
First Observation Used2010-10-30
Last Observation Used2019-10-05
Observations (80)
Date Type RA Dec Mag Band Observatory
2017-11-12 04:34:55 C 00 55 59.67 +02 32 45.8 o 291
2017-11-12 04:47:23 C 00 55 59.16 +02 32 31.5 o 291
2017-11-17 04:45:53 C 00 51 35.05 +00 20 31.4 U G96
2017-11-17 04:53:23 C 00 51 34.73 +00 20 23.0 U G96
2017-11-17 05:00:54 C 00 51 34.48 +00 20 16.3 U G96
2017-11-17 05:08:26 C 00 51 34.24 +00 20 07.7 U G96
2017-11-18 02:50:01 C 00 50 54.45 -00 02 02.3 U 807
2017-11-18 03:05:57 C 00 50 53.96 -00 02 18.1 U 807
2017-11-18 03:21:57 C 00 50 53.45 -00 02 34.3 U 807
2017-11-20 02:46:00 C 00 49 35.81 -00 49 56.4 u H21
2017-11-20 03:04:59 C 00 49 35.27 -00 50 14.9 u H21
2017-11-20 03:29:47 C 00 49 34.59 -00 50 39.0 u H21
2017-11-23 05:21:27 C 00 47 57.67 -01 59 15.9 o 291
2017-11-23 05:40:07 C 00 47 57.28 -01 59 32.7 o 291
2017-12-07 03:07:52 C 00 46 44.30 -05 56 28.9 o 695
2017-12-07 03:18:24 C 00 46 44.39 -05 56 34.8 o 695
2017-12-07 03:28:55 C 00 46 44.48 -05 56 40.4 o 695
2017-12-09 04:25:46 C 00 47 21.13 -06 21 55.7 o 291
2017-12-09 05:01:07 C 00 47 21.51 -06 22 13.2 o 291
2017-12-23 03:56:19 C 00 56 23.90 -08 19 15.8 o 291
2017-12-23 04:39:50 C 00 56 25.40 -08 19 25.4 o 291
2018-01-06 01:46:19 C 01 12 37.60 -08 58 31.4 o 695
2018-01-06 01:59:13 C 01 12 38.33 -08 58 31.8 o 695
2018-01-06 02:12:08 C 01 12 39.04 -08 58 31.9 o 695
2018-01-15 03:00:14 C 01 26 21.36 -08 53 32.5 o 291
2018-01-15 04:02:35 C 01 26 25.42 -08 53 27.0 o 291
2018-06-02 04:03:38 C 09 40 04.20 +13 48 05.4 o 291
2018-06-02 04:44:54 C 09 40 13.88 +13 48 17.0 o 291
2019-10-05 12:06:07 C 06 39 43.14 +09 59 15.4 o 695
2019-10-05 12:16:40 C 06 39 44.38 +09 59 04.4 o 695