Date: Fri, 19 Feb 2010 17:50:15 -0000 (UTC)
Subject: Re: 2.5m obslog 20100218 (MJD 55246)
From: hjbrew@apo.nmsu.edu
>
>                        APACHE POINT OBSERVATORY SDSS 2.5M
>
>                                  OBSERVING LOG
>                            Thursday February 18, 2010
>
>                                   (MJD 55246)
>
> DIMM camera was vibrating - probably the fan, and it seems to be a
> resonant
> frequency with the camera body. Holding the camera body damps out the
> oscillations, and they stayed damped.
>
>
I'll be on site tomorrow (Saturday) and will check it then.
Howard