2018 RA4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5240916000
Semi-major axis (a)2.1477677000 AU
Inclination (i)6.89670000°
Long. of Asc. Node (Ω)343.32225000°
Arg. of Perihelion (ω)334.57926000°
Mean Anomaly (M)111.56889000°
Mean Motion (n)0.3131288700°/day
Perihelion dist (q)1.02214070 AU
Aphelion dist (Q)3.27339470 AU
Orbital Period3.14761030 yr
Physical Parameters
H (abs. magnitude)24.33
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.790″
Uncertainty7
Orbit TypeAmor
MOID0.031127 AU
Observations Used64
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-09-28
Observations (69)
Date Type RA Dec Mag Band Observatory
2018-09-15 06:14:31 C 22 37 00.53 +05 15 58.5 V 703
2018-09-16 20:17:55 C 22 47 00.06 +07 52 46.8 q A17
2018-09-16 20:34:54 C 22 47 03.92 +07 53 50.7 q A17
2018-09-16 20:51:53 C 22 47 07.74 +07 54 55.0 q A17
2018-09-17 02:51:26 C 22 48 36.49 +08 17 26.2 V I52
2018-09-17 02:52:03 C 22 48 36.69 +08 17 29.2 V I52
2018-09-17 02:52:38 C 22 48 36.80 +08 17 31.6 V I52
2018-09-17 02:53:14 C 22 48 36.93 +08 17 33.4 V I52
2018-09-20 05:52:17 C 23 04 00.79 +12 07 57.4 u H21
2018-09-20 05:59:35 C 23 04 01.96 +12 08 16.2 u H21
2018-09-20 06:09:39 C 23 04 03.59 +12 08 41.9 u H21
2018-09-21 04:54:07 C 23 08 03.05 +13 04 11.3 V I52
2018-09-21 04:55:13 C 23 08 03.25 +13 04 13.4 V I52
2018-09-21 04:56:19 C 23 08 03.42 +13 04 16.5 V I52
2018-09-21 04:57:25 C 23 08 03.56 +13 04 18.8 V I52
2018-09-28 07:48:26 C 23 30 07.45 +17 39 52.6 V I52
2018-09-28 07:53:13 C 23 30 07.88 +17 39 58.3 V I52
2018-09-28 07:58:01 C 23 30 08.32 +17 40 02.9 V I52
2018-09-28 08:02:49 C 23 30 08.73 +17 40 07.6 V I52