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cso:policy:remote_obs [2015-02-17 20:47] sradford |
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+ | ====== Remote Observations ====== | ||
+ | Unattended remote observing with the CSO is permitted under the following conditions: | ||
+ | |||
+ | * Prior approval is obtained from the CSO Manager, Simon Radford <sradford@caltech.edu>. Usually remote observations are prescheduled. | ||
+ | * Remote observing is permitted if and only if the weather is good and the forecast is stable. The CSO Manager will make a weather determination each night prior to the start of observations. Inclement weather that precludes remote observing includes, but is not limited to: | ||
+ | * High optical depth, //τ//<sub>225 GHz</sub> > 0.25 (soft limit), | ||
+ | * Relative humidity > 60% outside, | ||
+ | * High winds: sustained > 30 mph at JCMT, or | ||
+ | * Thunderstorms, snow, ice, fog, or rain. | ||
+ | * Remote observing shall not commence, and the shutter shall not be opened, until one hour after sunset. By this time most, and we hope all, summit tourists have departed. | ||
+ | * Remote observing shall cease, and the shutter shall be closed, before sunrise. During the hour before sunrise, the target must be in the west. | ||
+ | * For sunset and sunrise times, refer to the [[http://aa.usno.navy.mil/data/docs/RS_OneDay.php|USNO]] or [[http://www.esrl.noaa.gov/gmd/grad/solcalc|NOAA]] calculators or to the [[http://www.eao.hawaii.edu/weather|EAO Weather]] page. | ||
+ | * The two person rule still applies. If anyone goes to the telescope for any reason, for instance to clear a hardware problem, then a second person must also go along. | ||
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+ | Remote observations are supported only with the 230/460 GHz sidecab receiver, with Sharc II and Sharp, with Zspec, and with Music. Support for other instruments, if possible, is experimental. | ||
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+ | Hardware changes are only possible during the day when the technicians are at the telescope. Please request any hardware changes no later than 15 HST. | ||
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+ | In case of problems during observations, CSO staff are available but can provide remote assistance only. In case of an insuperable malfunction, observations will cease for the night. | ||
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+ | If you have any questions or suggestions about this policy, please contact the CSO Manager. | ||
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