YREF_SCI

Aperture Y reference point in SCI frame

The aperture Y reference point in the science frame, retrieved from the SIAF entry "YSciRef" for the aperture in use. Gives the location of the target in floating-point image pixel values for NIRCam TSO grism exposures.

Attribute Value
data type float
enumerated Values not defined
units pixels
example 1581.0
default value
special processing OPTIONAL
source Science Data Processing (SDP)
software source
calculation
DB destination ['ScienceCommonExt.yref_sci']
data type in DB float
instrument NIRCAM
mode NRC_TSGRISM
product level 1b
FITS hdu SCI
FITS header section WCS Parameters