2018 RD4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3396369885 ± 3.75e+03
Semi-major axis (a)1.5567993791 AU ± 1.02e+04
Inclination (i)5.70978696° ± 2.47e+04
Long. of Asc. Node (Ω)167.19369562° ± 2.46e+05
Arg. of Perihelion (ω)169.36653206° ± 4.02e+05
Mean Anomaly (M)281.74461448° ± 1.36e+07
Mean Motion (n)0.5140705200°/day ± 5.05e+03
Perihelion dist (q)1.00957680 AU ± 8.90e+03
Aphelion dist (Q)2.07705080 AU ± 1.48e+04
Orbital Period1.91726150 yr ± 1.88e+04
Physical Parameters
H (abs. magnitude)28.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual3.031″
Uncertainty4
Orbit TypeAmor
MOID0.021066 AU
Observations Used24
Oppositions1
Arc Total2018-2018
First Observation Used
Last Observation Used2018-09-11
Observations (24)
Date Type RA Dec Mag Band Observatory
2018-09-10 05:25:03 C 23 22 38.81 -03 14 04.5 V 703
2018-09-10 05:32:39 C 23 23 13.07 -03 16 30.5 V 703
2018-09-10 05:47:52 C 23 24 22.20 -03 21 26.6 V 703
2018-09-10 09:56:10 C 23 42 15.90 -04 36 49.2 V 703
2018-09-10 09:56:26 C 23 42 16.97 -04 36 53.6 V 703
2018-09-10 09:56:40 C 23 42 18.00 -04 36 57.7 V 703
2018-09-10 09:56:56 C 23 42 19.04 -04 37 02.2 V 703
2018-09-10 21:49:38 C 00 30 36.92 -07 34 28.2 18.4 V 104
2018-09-10 21:53:41 C 00 30 50.16 -07 35 18.5 18.5 V 104
2018-09-10 21:57:45 C 00 31 03.42 -07 36 08.7 18.4 V 104
2018-09-10 23:18:25 C 00 35 17.62 -07 52 38.4 V L01
2018-09-10 23:20:07 C 00 35 22.92 -07 52 57.6 V L01
2018-09-10 23:21:49 C 00 35 28.18 -07 53 17.1 V L01
2018-09-10 23:25:04 C 00 35 38.36 -07 53 55.8 V L01
2018-09-10 23:59:15 C 00 37 28.70 -08 00 33.9 V 204
2018-09-11 00:08:09 C 00 37 55.98 -08 02 15.6 V 204
2018-09-11 05:15:40 C 00 54 29.64 -08 51 28.1 I52
2018-09-11 05:16:13 C 00 54 31.14 -08 51 34.2 I52
2018-09-11 05:17:19 C 00 54 34.19 -08 51 44.7 I52
2018-09-11 14:38:08 C 01 18 04.41 -09 49 14.3 V 474
2018-09-11 14:39:05 C 01 18 06.44 -09 49 21.1 V 474
2018-09-11 14:40:01 C 01 18 08.44 -09 49 27.8 V 474
2018-09-11 14:40:58 C 01 18 10.44 -09 49 34.7 V 474
2018-09-11 14:41:55 C 01 18 12.46 -09 49 41.3 V 474