Asteroid Radar Database
  Return to list of asteroid radar detections  

(2014 BR57)
Classification: APO [NEO]
H:24.06 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2014 Feb 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 2026-06-09 00:00 TT from E2026-T23 (heliocentric ecliptic J2000)
Element Value Units
e 0.3986769
a 1.357724 AU
i 3.85225 deg
om 341.10517 deg
w 237.29762 deg
ma 247.37929 deg
n 0.62299828 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
2017-08-01 17:25:00 0.32787 327.2 0.0
2025-01-16 17:03:00 0.47953 478.6 0.0
2025-05-30 04:31:00 0.17989 179.5 0.1
2033-02-14 05:34:00 0.08686 86.7 1.6
2036-07-27 07:13:00 0.22272 222.3 0.1

Link to complete Close-Approach Data on SBDB at JPL