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Fallback Serviced Observations

During the latter part of semester 96B there was a considerable amount of time set aside for the commissioning of SCUBA and for observations with SCUBA (where the time had been allocated by the ITAC in October). For most of the period the weather was barely useable by the SCUBA commissioning team although a considerable amount of commissioning was undertaken. There were no opportunities to begin the SCUBA 2nd round observing programme.

The ITAC had nominated a significant number of 'fallback' applications for use either when the weather was not suitable for commissioning or when the instrument was in need of repair. These applications were to be completed in serviced mode by members of the JCMT support team.

In addition to the applications above, there were several additional applications that had been awarded time in semester 96A that merited further work. These were primarily A-band requests which could not be fulfilled during semester 96A due to the lack of a working RxA2 for most of the semester. These applications were combined with the semester 96B fallback nominations to form what has now become known as the 'heterodyne fallback queue'.

Each applicant was requested to complete a detailed template for their observations and submit it promptly to the JCMT staff (either to the designated staff support member or directly to Graeme Watt) so that sufficient details were available on the summit for whichever staff member was 'on duty' that night to proceed with whatever application appeared to be most appropriate for the weather conditions at that time and the instrument available.

An approximate value for the percentage completion of each fallback application can be found in the status table. Applicants should note these are only guideline figures. For more detailed infomration on the data obtained, applicants should contact Gerald Moriarty-Schieven (gms@jach.hawaii.edu).


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Last Modification Date 1997/03/12 - Last Modification Author: gdw
Graeme Watt (gdw)
Contact: Jonathan Kemp. Updated: Tue Aug 17 17:32:21 HST 2004

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