IPAC 2MASS Science and Analysis Working Group Meeting #12 Minutes

IPAC 2MASS Science and Analysis Working Group Meeting #12 Minutes, 11/22/95

B. Light: reported on the first measurements of relative positional offsets of sources processed using nominal R2-R1 pipeline and R1 frames processed using KAMPHOT. The R1 KAMPHOT processing uses the R2-R1 psf, since creating an R1 psf is futile. Plots of dx and dy versus the R2-R1 magnitude of sources
```
[where 
		dx = x(R2-R1) - x(R1-KAMPHOT)
and 
		dy = y(R2-R1) - y(R1-KAMPHOT)] 
```
show no systematic offsets, and the dispersion in the dx and dy is approximately 0.05 pixels in the range m<11. The next step is to examine the difference between "normal" R1 processing and KAMPHOT R1.
S. Terebey: is continuing work on a general psf model. She reported progress on understanding the blurring effect of the bi-linear interpolation algorithm used in construction of the coadd images.
L. Fullmer: is working on producing 3-color images using GEOM to register images, and display with a 24-bit monitor. Challenges include finding proper parameters to use with GEOM since the images are not being combined with MOSAIC, and setting the proper stretches in the 3 bands to make nice images. Linda will consult with Tom Jarrett on the latter issue.