Schedule Observations Schedule Spectroscopic Observations
NameWX9E23A → 2015 XW261
Type NEO (Apollo)
Status Actively Following
Characterization Target
Source Yarkovsky
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Recent Blocks Scheduled
  • No blocks have been scheduled
Measurements
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Last Update: 2026-Mar-19 21:15
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
61000.0 Nov. 21, 2025
Orbital inclination in deg 29.67515
Longitude of Ascending Node (deg) 269.88916
Arg of perihelion (deg) 289.4562
Eccentricity 0.4668902
Mean distance (AU) 1.2486842
Mean Anomaly (deg) 341.81432
Absolute Magnitude (H) 21.39
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 187
Diameter in meters
(range)		 90 - 701
Physical Parameters
Rotation Period [Result based on less than full coverage, so that the period may be wrong by 30 percent or so.] REFERENCE LIST:[Pravec, P.; Wolf, M.; Sarounova, L. (2022) http://www.asu.cas.cz/~ppravec/neo.htm]

LCDB (Rev. 2023-October); Warner et al., 2009
19.67 h
Diameter Initial Diameter Guess using H=21.39 and albedo=0.14 (0.01 to 0.5)

MPC Default
187.27 m +513.0 / -88.0
Absolute Magnitude MPO733386
21.39
Follow-up Details
NEOCP digest2 score 78
Number of observations 223
Arc length (days) 2577.00
Time since last observation (days) 1089.12
Spectroscopy Details
Known Taxonomies None