Subject: Re: [sloan-25mlog 2826] 2.5m obslog 20160205 (SJD 57424) From: Elena Malanushenko Date: Sat, 6 Feb 2016 09:52:02 -0700 I think, Apogee dither was adjusted intentionally by Jon Holtzman some days ago See IS email 13771 Elena On 02 /06/ 16, at 5:56 AM, asimmons@apo.nmsu.edu wrote: > APOGEE dither has been moved by 2 pixel. So now the offset is normal = at -2 and > -2.5 pixels. ------- Begin forwarded message: > From: "John C. Wilson" > Subject: Re: [infrastructure 13771] Re: [sloan-25mlog 2825] 2.5m = obslog 20160204 (SJD 57423) > Date: 02 /05/16 3:21:50 PM MST > To: Elena Malanushenko > Cc: asimmons@apo.nmsu.edu, infrastructure@sdss.org >=20 > Hi Elena, >=20 > And regarding your point 2, the offset is different now because Jon H. > manually moved the A position of the dither mechanism by 2 pixels to > better center it within its movement range. >=20 > Thanks for watching out for changes like this. >=20 > John.