Asteroid Radar Database
  Return to list of asteroid radar detections  

154276 (2002 SY50)
Classification: APO [NEO, PHA]
H:17.64 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
2002 Nov Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
name symbol value units uncertainty reference notes
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 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
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 0.44 0.08 2008Icar..198..294B

Orbital Elements at Epoch 2024-03-31 00:00 TT from MPO777946 (heliocentric ecliptic J2000)
Element Value Units
e 0.6887427
a 1.7045009 AU
i 8.74585 deg
om 34.03883 deg
w 99.67222 deg
ma 199.49062 deg
n 0.4429026 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
2022-12-04 07:41:00 0.33530 334.6 1.0
2025-05-15 18:35:00 0.07046 70.3 233.2
2031-10-17 08:50:00 0.24719 246.7 3.0
2034-03-12 08:16:00 0.41701 416.2 0.5

Link to complete Close-Approach Data on SBDB at JPL