From: Marc Postman (postman@stsci.edu)
Date: Fri Jun 30 2006 - 08:15:32 PDT
Looks good!
Begin forwarded message:
> From: Kenneth Sembach <sembach@stsci.edu>
> Date: June 30, 2006 10:32:39 AM EDT
> To: st_all@stsci.edu
> Subject: ACS Side-2 Switch status - Successful!
> Reply-To: Kenneth Sembach <sembach@stsci.edu>
>
>
> Colleagues,
>
> There is excellent ACS news to report this morning. The instrument
> subsystems were powered on earlier this morning, including the CCD
> electronics, and all seem to be working well (see message attached
> below). ACS has now been safed to await the SMS intercept on Sunday.
>
> Upcoming events of note include the following:
>
> After SMS intercept, ACS will be brought out of safe mode, the
> TECs will be returned to their nominal (current) operating
> temperatures, and several memory/dump tests will begin. This will
> take most of the day Monday.
>
> We'll get our first internal bias/dark/flat exposures Tuesday,
> July 4, with the remaining orbital verification calibration
> observations to follow during the week. The WFC TEC temperature
> setting will be lowered early in this process from -77 C to -81 C
> to improve WFC performance.
>
> Science observations will be interleaved with calibration
> exposures,
> either in sequence or in parallel. The first ACS GO observation
> should occur late Tuesday night (~9:30 PM - around the time of
> fireworks!).
>
> The ACS Team will be analyzing the data as soon as they come in,
> and we'll update the staff when further information becomes
> available.
>
> Hurray and cheers to all!
> -Ken
>
>
> ------------- Begin Forwarded Message -------------
>
> At 181/12:20 the loading of ACS Side 2 EEPROM (JV0019) was
> completed and
> verified by the Payload FSW team. ACS was transitioned
> successfully to
> Operate mode at 181/13:12 on Side 2. All mechanisms except
> correctors were
> initialized and placed in their home positions. (By design, the
> correctors
> were not commanded.) The WFC and HRC TEC have also been enabled and
> successfully cooled their respective CCD s to -66.7 dgC. The WFC
> and HRC
> CCD detectors have both been powered on and initialized. No anomalous
> telemetry has been observed for any ACS sub-system on Side 2.
> ACS remained in this configuration until ~181/14:00, when it was
> reconfigured for science intercept on Sunday evening (184/00:00).
>
> ------------- End Forwarded Message -------------
>
> At 181/12:20 the loading of ACS Side 2 EEPROM (JV0019) was
> completed and verified by the Payload FSW team. ACS was
> transitioned successfully to Operate mode at 181/13:12 on Side 2.
> All mechanisms except correctors were initialized and placed in
> their home positions. (By design, the correctors were not
> commanded.) The WFC and HRC TEC have also been enabled and
> successfully cooled their respective CCD s to -66.7 dgC. The WFC
> and HRC CCD detectors have both been powered on and initialized.
> No anomalous telemetry has been observed for any ACS sub-system on
> Side 2.
> ACS remained in this configuration until ~181/14:00, when it was
> reconfigured for science intercept on Sunday evening (184/00:00).
>
> Randy Jay Stevens
>
> Lockheed Martin IS&S
> HST MOSES Science Instruments Systems Engineer
> Phone: 303-664-0168 (Lafayette, CO)
> Phone: 301-901-6074 (Greenbelt, MD)
> Cell: 720-839-8125
> Email: rstevens@hst.nasa.gov
> Text Page: 7208398125@messaging.sprintpcs.com
> Jabber ID: rstevens@im.nasa.gov
>
>
>
>
-----------------------------------------------------------------
Marc Postman Email: postman@stsci.edu
STScI - CMO Phone: +1-410-338-4340
3700 San Martin Drive Fax: +1-410-338-4796
Baltimore, MD 21218 U.S.A. http://www.stsci.edu/~postman
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