2018 XP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7442675003 ± 2.00e+00
Semi-major axis (a)2.3420266060 AU
Inclination (i)1.74138882° ± 4.00e+00
Long. of Asc. Node (Ω)142.14830835° ± 5.00e+00
Arg. of Perihelion (ω)200.96374962° ± 6.00e+00
Mean Anomaly (M)352.10676381°
Mean Motion (n)0.2749903200°/day
Perihelion dist (q)0.59890910 AU
Aphelion dist (Q)4.08513650 AU
Orbital Period3.58415410 yr
Physical Parameters
H (abs. magnitude)24.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.174″
Uncertainty
Orbit TypeApollo
MOID0.028352 AU
Observations Used17
Oppositions1
Arc Total2018-2018
First Observation Used
Last Observation Used2018-12-15
Observations (17)
Date Type RA Dec Mag Band Observatory
2018-12-13 11:42:19 C 04 09 11.086 +09 09 47.67 U F51
2018-12-13 11:46:01 C 04 09 11.393 +09 09 57.52 U F51
2018-12-13 11:59:03 C 04 09 12.525 +09 10 32.94 U F51
2018-12-13 12:02:48 C 04 09 12.847 +09 10 43.11 U F51
2018-12-13 12:15:48 C 04 09 13.954 +09 11 18.30 U F51
2018-12-13 12:19:29 C 04 09 14.287 +09 11 28.56 U F51
2018-12-13 12:32:31 C 04 09 15.415 +09 12 03.25 U F51
2018-12-13 12:36:14 C 04 09 15.729 +09 12 13.56 U F51
2018-12-14 05:25:23 C 04 10 52.20 +09 55 23.2 V I52
2018-12-14 05:28:59 C 04 10 52.48 +09 55 31.8 V I52
2018-12-14 05:37:39 C 04 10 53.12 +09 55 52.7 V I52
2018-12-14 05:41:15 C 04 10 53.36 +09 56 02.2 V I52
2018-12-14 08:58:05 C 04 11 10.238 +10 04 06.71 V 568
2018-12-14 08:59:27 C 04 11 10.339 +10 04 10.07 V 568
2018-12-14 09:00:49 C 04 11 10.435 +10 04 13.17 V 568
2018-12-15 05:06:44 C 04 12 49.51 +10 48 58.7 o 291
2018-12-15 05:16:26 C 04 12 50.15 +10 49 19.2 o 291