Asteroid Radar Database
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(2015 MA54)
Classification: APO [NEO]
H:25.3 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2015 Jun Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
                 [edit]
name symbol value units uncertainty reference notes
morphology
number of components N
morphological type
spectrum-based or image-based dimensions
maximum range extent Rmax km
minimum range extent Rmin km
maximum Doppler bandwidth Bmax Hz
minimum Doppler bandwidth Bmin Hz
effective diameter Deff km
quality code for size Q
shape-based dimensions
equivalent diameter Dequ km
extent along principal axis x Ex km
extent along principal axis y Ey km
extent along principal axis z Ez km
DEEVE extent along x Dx km
DEEVE extent along y Dy km
DEEVE extent along z Dz km
surface area A km2
volume V km3
spin
spin period Pspin h
spin rate ω deg/day
YORP acceleration ω̇ deg/day2
spin axis ecliptic longitude λ deg
spin axis ecliptic latitude β deg
reflectivity
radar cross-section OC σOC km2
radar cross-section SC σSC km2
radar cross-section σT km2
projected area Aproj km2
radar albedo OC σ̂OC
radar albedo SC σ̂SC
radar albedo σ̂T
circular polarization ratio μC

Orbital Elements at Epoch 2025-11-21 00:00 TT from MPO340664 (heliocentric ecliptic J2000)
Element Value Units
e 0.6174742
a 2.515408 AU
i 2.93089 deg
om 112.32579 deg
w 186.64612 deg
ma 211.6358 deg
n 0.24705373 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2019-07-01 05:43:00 0.02555 25.5 35.6
2023-07-24 10:30:00 0.04261 42.5 6.2
2031-07-11 02:08:00 0.05627 56.2 2.4
2035-06-28 09:21:00 0.03536 35.3 11.8

Link to complete Close-Approach Data on SBDB at JPL