diff --git a/docs/stcal/ramp_fitting/description.rst b/docs/stcal/ramp_fitting/description.rst index 72a735ff..37fc625c 100644 --- a/docs/stcal/ramp_fitting/description.rst +++ b/docs/stcal/ramp_fitting/description.rst @@ -9,7 +9,8 @@ The fit is performed independently for each pixel. The count rate for each pixel is determined by a linear fit to the cosmic-ray-free and saturation-free ramp intervals for each pixel; hereafter this interval will be referred to as a "segment." The fitting algorithm uses an -'optimal' weighting scheme, as described by Fixsen et al, PASP, 112, 1350. +'optimal' weighting scheme, as described by +`Fixsen et al. (2011) `_. Segments are determined using the 4-D GROUPDQ array of the input data set, under the assumption that the jump