Asteroid Radar Database
  Return to list of asteroid radar detections  

154275 (2002 SR41)
Classification: APO [NEO, PHA]
H:20.13 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
2005 Jun Arecibo Arecibo 2380 [A]
2014 Jun Arecibo Arecibo 2380 [A]

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 2024-03-31 00:00 TT from E2023-N26 (heliocentric ecliptic J2000)
Element Value Units
e 0.4907109
a 1.0836611 AU
i 11.57547 deg
om 247.76876 deg
w 258.19736 deg
ma 304.98414 deg
n 0.87370305 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
2014-06-09 05:41:00 0.04195 41.9 166.7
2020-12-02 06:09:00 0.28451 283.9 0.2
2022-03-12 19:14:00 0.44648 445.6 0.0
2023-06-14 19:19:00 0.14566 145.4 2.2
2028-10-15 00:57:00 0.38092 380.2 0.1
2029-10-17 06:27:00 0.42620 425.4 0.1
2029-12-28 11:43:00 0.37000 369.3 0.1
2031-03-31 23:29:00 0.40953 408.7 0.1
2031-06-29 16:04:00 0.44729 446.4 0.0
2032-06-20 21:49:00 0.29205 291.5 0.2

Link to complete Close-Approach Data on SBDB at JPL