2018 XC4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3106442000
Semi-major axis (a)1.2681013000 AU
Inclination (i)2.17165000°
Long. of Asc. Node (Ω)95.07371000°
Arg. of Perihelion (ω)52.41991000°
Mean Anomaly (M)272.21222000°
Mean Motion (n)0.6901971100°/day
Perihelion dist (q)0.87417300 AU
Aphelion dist (Q)1.66202960 AU
Orbital Period1.42800890 yr
Physical Parameters
H (abs. magnitude)26.30
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.380″
Uncertainty6
Orbit TypeApollo
MOID0.003652 AU
Observations Used67
Radar Obs Used1
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-12-19
Observations (67)
Date Type RA Dec Mag Band Observatory
2018-12-17 06:00:09 C 05 17 41.77 +04 23 19.2 18.0 q H21
2018-12-17 06:05:58 C 05 17 42.68 +04 22 47.3 17.9 q H21
2018-12-17 06:11:47 C 05 17 43.59 +04 22 15.0 18.3 q H21
2018-12-17 06:17:35 C 05 17 44.51 +04 21 43.0 18.6 q H21
2018-12-17 06:23:24 C 05 17 45.45 +04 21 10.8 17.9 q H21
2018-12-17 14:13:52 C 05 20 11.34 +03 35 24.8 q D29
2018-12-17 14:34:14 C 05 20 15.26 +03 33 14.7 q D29
2018-12-18 02:12:53 C 05 23 52.00 +02 09 30.7 V G40
2018-12-18 03:41:59 C 05 24 16.05 +01 57 08.2 V G40
2018-12-18 04:11:59 C 05 24 25.01 +01 52 52.7 V G40
2018-12-19 03:03:16 C 05 36 41.28 -02 27 39.7 V G40
2018-12-19 03:23:00 C 05 36 52.36 -02 32 40.1 V G40
2018-12-19 03:53:17 C 05 37 09.90 -02 40 26.4 V G40
2018-12-19 04:01:38 C 05 37 14.89 -02 42 36.2 V G40
2018-12-19 05:45:16 C 05 39 21.62 -03 11 13.4 V G96
2018-12-19 06:00:15 C 05 39 30.73 -03 15 22.1 V G96
2018-12-19 06:07:46 C 05 39 35.33 -03 17 28.4 V G96
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-12-18 04:24:00 117550.9442 0.5 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)