16407

This program will observe PN VY2-2 near the center of the field and at additional positons using the WFC3 IR G102 and G141 grisms. The data will be used to calculate wavelength solutions for the grisms comma and will be compared with those derived from previous programsdoublePoint 15727 15586 14993 14543 14385 14023 13582 13580 13093 12703 12356 to monitor for potential time evolution of the calibration.