480883 (2001 YE4)



Number 480883
Provisional Designation 2001 YE4
Type Aten, NEO, PHA
Absolute Magnitude, H 20.7
Eccentricity 0.5404
Semi-major axis 0.6769 au
Inclination 4.838 °
Discovery Date 2001-12-21
Discovery By LINEAR at Socorro

Radar Experiments

Doppler-Only (Continuous Wave) Echo Power Spectra


2016-12-28, 2001YE4.2016Dec28.s0p4Hz.cw.png

Delay-Doppler Images


2012-01-05, 2001YE4.p1.2012feb23.png

2016-12-28, 2001YE4.2016Dec28.s0p4Hz.cw.png


Echo power spectrum obtained on 2016-12-28 smoothed to a frequency resolution of 0.4 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.92.

Observation Date: 2016-12-28 (22:44:44-23:38:15)

Resolution: 0.4 Hz

Polarization Ratio: 0.92

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CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2012-01-05, 2001YE4.p1.2012feb23.png


Delay-Doppler radar image obtained on 2012-1-5. The spatial resolution is 15 m per pixel vertically along the delay axis and 0.1 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2012-01-05 (21:29:23-23:21:15)

Resolution, Delay Axis: 15 m/px

Resolution, Doppler Axis: 0.1 Hz/px

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Additional Information

  • NASA Jet Propulsion Laboratory Small-Body Database entry


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