Figure 8: Comparison of the Doppler spectra of Models 1 and 2 with the data at four nearby rotation phases. Above each spectrum is the model's pole-on silhouette as seen from the north pole with the radar toward the bottom. Each silhouette is drawn at the same scale as the Doppler frequency axis and at the indicated rotation phase. The Doppler spectra can be thought of as scans of radar brightness in the plane of the sky taken through a slit parallel to the target's projected spin vector.

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