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
2017-12-26 03:00:31 C 03 42 58.94 +15 04 39.3 U I52
2017-12-26 03:04:18 C 03 43 01.44 +15 05 02.1 U I52
2017-12-26 03:05:36 C 03 43 01.21 +15 05 16.7 o 711
2017-12-26 03:08:06 C 03 43 02.85 +15 05 31.4 o 711
2017-12-26 03:10:50 C 03 43 04.74 +15 05 46.8 o 711
2017-12-26 03:13:17 C 03 43 06.32 +15 06 01.3 o 711
2018-01-05 03:52:29 C 06 21 48.65 +29 41 18.2 o 926
2018-01-05 03:58:07 C 06 21 51.37 +29 41 27.4 o 926
2018-01-05 04:02:53 C 06 21 53.66 +29 41 35.3 o 926
2018-01-06 08:57:36 C 06 35 46.33 +30 18 33.9 o 291
2018-01-06 09:00:26 C 06 35 47.55 +30 18 36.6 o 291
2018-01-06 09:03:16 C 06 35 48.77 +30 18 39.4 o 291
2018-01-15 08:03:33 C 07 46 10.051 +31 38 51.48 U F51
2018-01-15 08:21:33 C 07 46 13.570 +31 38 52.47 U F51
2018-01-15 08:39:33 C 07 46 17.048 +31 38 53.21 U F51
2018-01-20 07:03:59 C 08 07 36.15 +31 21 18.3 U G96
2018-01-20 07:11:34 C 08 07 37.14 +31 21 17.0 U G96
2018-01-20 07:20:11 C 08 07 38.23 +31 21 14.9 U G96
2018-01-20 07:27:46 C 08 07 39.19 +31 21 13.9 U G96