37655 Illapa (1994 PM)


Name Illapa
Number 37655
Provisional Designation 1994 PM
Type Apollo, NEO, PHA
Absolute Magnitude, H 17.8
Rotation period 2.6556 h
Eccentricity 0.7527
Semi-major axis 1.478 au
Inclination 18.023 °
Discovery Date 1994-08-01
Discovery By C. S. Shoemaker and E. M. Shoemaker
Discovery Means Palomar Observatory

Radar Experiments

Doppler-Only (Continuous Wave) Echo Power Spectra


2018-07-05, 37655Illapa.aug13.sp5Hz.cw.png

2018-07-05, 37655Illapa.aug13.sp5Hz.cw.png


Echo power spectrum obtained on 2018-7-5 smoothed to a frequency resolution of 0.5 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 0.25.

Observation Date: 2018-07-05 (11:19:02-11:34:13)

Resolution: 0.5 Hz

Polarization Ratio: 0.25

Download Options:

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.

Additional Information

  • NASA Jet Propulsion Laboratory Small-Body Database entry


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