Minor Planet Radar Database
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325 Heidelberga
Classification:  []
H:8.7 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2004 Nov Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
                 [edit]
name symbol value units uncertainty reference notes
morphology
number of components N 1 - single 2008Icar..195..184S
morphological type
spectrum-based or image-based dimensions
maximum range extent Rmax km
minimum range extent Rmin km
maximum Doppler bandwidth Bmax 270 Hz 33 2008Icar..195..184S
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 775 km2 400 2008Icar..195..184S
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 0 0.1 2008Icar..195..184S

Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO473765 (heliocentric ecliptic J2000)
Element Value Units
e 0.1570546
a 3.2164877 AU
i 8.54054 deg
om 344.783 deg
w 69.02015 deg
ma 178.11382 deg
n 0.17085639 deg/d

Link to complete orbital information at Minor Planet Center