Planck early results
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Table 2

Planck pointing performance.

Median Std. dev. Unit

Spin rate 6.0001 0.0027 deg   s-1
Small manoeuvre accuracy 3.6 1.8 arcsec
Residual nutation amplitude
after manoeuvre 2.68 1.75 arcsec
Drift rate during inertial pointing 9.14 3.0 arcsec   h-1

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