Asteroid Radar Database
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136849 (1998 CS1)
Classification: APO [NEO, PHA]
H:17.72 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
2009 Jan Goldstone Goldstone 8560 [G]
2009 Jan 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-D63 (heliocentric ecliptic J2000)
Element Value Units
e 0.5787299
a 1.4913073 AU
i 7.79016 deg
om 110.69642 deg
w 97.7822 deg
ma 96.42069 deg
n 0.5411945 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
2016-08-10 03:51:00 0.35863 357.9 0.6
2018-04-16 07:52:00 0.38970 388.9 0.4
2019-12-28 09:14:00 0.46773 466.8 0.2
2027-07-19 00:03:00 0.07656 76.4 118.3
2029-02-03 17:30:00 0.20621 205.8 3.8

Link to complete Close-Approach Data on SBDB at JPL