2017 YR4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4548019000
Semi-major axis (a)1.8487061000 AU
Inclination (i)3.00216000°
Long. of Asc. Node (Ω)96.61364000°
Arg. of Perihelion (ω)340.07726000°
Mean Anomaly (M)57.38768000°
Mean Motion (n)0.3921048800°/day
Perihelion dist (q)1.00791110 AU
Aphelion dist (Q)2.68950110 AU
Orbital Period2.51363270 yr
Physical Parameters
H (abs. magnitude)24.40
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.680″
Uncertainty7
Orbit TypeAmor
MOID0.027446 AU
Observations Used69
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-01-20
Observations (69)
Date Type RA Dec Mag Band Observatory
2017-12-24 04:47:09 C 03 10 50.01 +10 33 06.0 U G96
2017-12-24 04:56:28 C 03 10 55.85 +10 34 00.9 U G96
2017-12-24 05:13:31 C 03 11 06.49 +10 35 41.5 U G96
2017-12-24 05:25:36 C 03 11 14.05 +10 36 53.3 U G96
2017-12-24 05:26:36 C 03 11 14.68 +10 36 59.0 U G96
2017-12-24 05:26:45 C 03 11 14.77 +10 37 00.1 U G96
2017-12-24 05:27:52 C 03 11 15.47 +10 37 06.7 U G96
2017-12-24 06:22:21 C 03 11 49.73 +10 42 26.7 U V06
2017-12-24 06:22:52 C 03 11 50.06 +10 42 30.3 U V06
2017-12-24 06:23:23 C 03 11 50.37 +10 42 33.3 U V06
2017-12-24 06:23:55 C 03 11 50.67 +10 42 35.6 U V06
2017-12-24 07:08:18 C 03 12 18.82 +10 46 56.2 U V06
2017-12-24 07:09:51 C 03 12 19.79 +10 47 05.6 U V06
2017-12-24 07:10:58 C 03 12 20.53 +10 47 11.7 U V06
2017-12-24 07:11:29 C 03 12 20.82 +10 47 14.5 U V06
2017-12-24 07:12:31 C 03 12 21.46 +10 47 19.8 U V06
2017-12-24 20:22:29 C 03 21 25.26 +12 04 52.3 q 595
2017-12-24 20:30:44 C 03 21 30.58 +12 05 40.1 q 595
2017-12-24 20:38:58 C 03 21 35.95 +12 06 29.1 q 595
2017-12-24 21:07:54 C 03 21 55.36 +12 09 20.7 U 203
2017-12-24 21:37:07 C 03 22 14.38 +12 12 12.5 U 203
2017-12-25 02:00:32 C 03 25 22.73 +12 38 27.1 q H36
2017-12-25 02:07:26 C 03 25 27.26 +12 39 08.1 q H36
2017-12-25 02:14:21 C 03 25 31.80 +12 39 49.5 q H36
2017-12-25 03:42:02 C 03 26 30.30 +12 48 53.6 o 711
2017-12-25 03:44:42 C 03 26 32.07 +12 49 09.0 o 711
2017-12-25 03:47:19 C 03 26 33.78 +12 49 24.7 o 711
2017-12-25 03:49:48 C 03 26 35.36 +12 49 38.9 o 711
2017-12-25 04:27:36 C 03 27 01.14 +12 53 18.8 o 926
2017-12-25 04:31:15 C 03 27 03.50 +12 53 40.4 o 926
2017-12-25 04:34:53 C 03 27 05.83 +12 54 01.9 o 926
2017-12-25 04:40:31 C 03 27 09.48 +12 54 31.7 U G96
2017-12-25 04:47:53 C 03 27 14.27 +12 55 15.1 U G96
2017-12-25 04:55:16 C 03 27 19.05 +12 55 58.5 U G96
2017-12-25 05:02:37 C 03 27 23.80 +12 56 42.0 U G96
2017-12-25 05:04:15 C 03 27 24.90 +12 56 51.1 U I52
2017-12-25 05:04:31 C 03 27 25.07 +12 56 52.8 U I52
2017-12-25 05:04:47 C 03 27 25.24 +12 56 54.6 U I52
2017-12-25 05:05:02 C 03 27 25.41 +12 56 56.1 U I52
2017-12-25 18:26:45 C 03 36 53.33 +14 14 16.1 q 113
2017-12-25 18:35:04 C 03 36 59.01 +14 15 03.5 q 113
2017-12-25 18:43:24 C 03 37 04.52 +14 15 53.6 q 113
2017-12-25 20:40:24 C 03 38 23.05 +14 27 17.0 q 246
2017-12-25 20:40:35 C 03 38 23.29 +14 27 17.1 q 246
2017-12-25 20:50:07 C 03 38 29.67 +14 28 16.5 q 246
2017-12-25 20:50:25 C 03 38 29.95 +14 28 18.6 q 246
2017-12-25 20:50:36 C 03 38 29.99 +14 28 19.8 q 246
2017-12-25 20:50:46 C 03 38 30.14 +14 28 20.7 q 246
2017-12-26 02:59:59 C 03 42 58.60 +15 04 37.2 U I52
2017-12-26 03:00:15 C 03 42 58.74 +15 04 37.8 U I52