The B-V and V-R Color Indices on the Surface of NEA (214088) 2004 JN13

TL;DR

This study reports photometric measurements of NEA (214088) 2004 JN13, revealing homogeneous surface colors and estimating its size based on observed color indices and assumed albedo.

Contribution

First detailed photometric analysis of NEA 2004 JN13's surface color indices and size estimation based on broad-band observations.

Findings

B-V and V-R color indices are consistent across the surface.

Estimated asteroid diameter is approximately 2.4 km.

Surface appears relatively homogeneous in color.

Abstract

This paper presents the results of photometric observations with standard broad-band Bessel filters B, V, and R on near-Earth asteroid (214088) 2004 JN13. The analysis shows that the B-V and V-R color indices are fairly constant on the asteroid surface with mean values $B-V = 0.83 \pm 0.02$ mag and $V-R = 0.48 \pm 0.03$ mag, indicative of a relatively homogeneous surface color distribution. For a typical albedo, assuming these colors indicate an S-type asteroid, a mean diameter of $2.4 \pm 0.5$ km is inferred.