Observing at the 182cm telescopecontrol room182

This page and related links give information on astronomical observations at the 1.82m telescope, located at Cima Ekar-Asiago(Italy).
Observing time is allocated purely on the basis of scientific merit of the applications. Large project proposal call is opened every two years, while small project proposals can be send to proposal@oapd.inaf.it at any moment. See templates below.

DETAILS OF THE PROCEDURES

Time allocation

 

Service mode 

 At the Asiago 182cm telescope a number of programs require observations in Service Mode. These observations will be performed by staff observers during dedicated nights. For request observing time fill this form.

Target of opportunity

At the Asiago 182cm telescope Target of Opportunity (TOO) programmes may be executed during the nights allocated for other projects.  In general a TOO observation will take less than 1 hour to be performed. No compensation for time lost is given to the observer.  Observers are invited to collaborate where possible in applications for TOO observations.
ToO trigger must be sent by the PI of already approved Large proposals to the night observers and, in CC, to proposal@oapd.inaf.it .
For all others ToO triggers, the proposers must follow the procedure for the activation of Small project proposals, sending the request to proposal@oapd.inaf.it. The telescopes coordinators will arrange the approved observations.

Information for Local Accommodation

Starting from December 2013 all observations involving the Ekar instrumentation will be performed remotely from the Asiago-Pennar Observatory. A number of guest rooms are available at the Observatory. The observer should send an email to guest@oapd.inaf.it a few days in advance specifying the number of nights required and providing his/her personal details. Guests have to pay for the room accommodation. No restaurant facility is provided at the Observatory, except for two small kitchens located in the same building as the guest rooms. In practice, accommodation in town is a good option, difficult to book only in July, August, at Christmas and in February.

Observing constraints.

A number of distributed probes record the temperature, humidity inside and outside the dome, the wind speed, the sky overcast, rain rate, etc. These data are archived by the weather monitoring systemand are visible for the observer in the Meteo web page: http://www.oapd.inaf.it/meteo/index.php (Silimet meteo station, positioned on the dome balcony) and at http://meteo.astro.unipd.it/weather/meteoLC.php (LaCrosse and Lunatico, positioned on the grass outside Schmidt 67/92 dome). The respect of these rules is the observer's responsibility. The software that controls the remote observing will, in any case, warn the observer on the weather conditions and will interrupt the observations if no action is taken by the observer. All actions taken during the night, together with the weather conditions, will be stored in a log file for future inspection.

  • When the relative humidity exceeds 90% the dome must be kept closed.
  • The dome must be immediatly close during the observation if the humidity reach 95%
  • The dome can be reopened when the humidity drops below 90%.
  • The dome must be kept closed if the wind speed exceed, even if temporary, 10 m/s. It can be open if wind speed does not exceed 10 m/s after a time interval of half an hour.
  • During the observation, if the wind speed reach 10 m/s, the dome must be partiatly close and not kept along wind direction only untill the end of the ongoing exposure. At the end of the exposure, the dome must be close.
  • During the observation, if the wind speed reach, even if temporary, 12 m/s the dome must be immediatly close.
  • Close the dome when the sky quality index reaches values higher than -5.
  • Close the dome immediately if rain drops are recorded.

However to avoid severe damage of the mirror coating and electronics the dome must be closed well in advance before the rain (snow) drops are recorded. Observers may check the rainfall status over the Asiago area in the ARPAV radar image visible in the meteo pages.

 The last graph of the page:http://www.oapd.inaf.it/meteo/graficiMeteo.php gives the maximun wind speed value recorded in half an hour and must be controlled during the observation.

AFOSC standard set-up and calibration

In order to minimise the technical interventions and to have a more stable instrument we have foreseen the following basic AFOSC set-up:

Aperture wheel: slits 1.26”; 1.69”, 2.50” and 4.22”

Filter wheel: u,B,V,g,r,i,z

Grism wheel: gr4, VPH6, VPH7

For this basic set-up the telescope operating team secures, every time AFOSC is mounted, the corresponding calibrations. They are taken with the CCD binned 2x2 and read-out modes of 50Kzx2 Hisens for spectroscopy and 1MHzx2 Hisens for imaging. Ne and Hg-Cd arcs are also secured for the different slits/grism combinations. If observers need a different AFOSC set-up they must communicate it to the telescope operating team well before (at least one week before) the beginning of the observations. In this case, it will be responsibility of the observer to take the appropriate calibrations.

AFOSC user manual (PDF)

  Night report.

Please note that all observers at the end of each session of night work are asked to fill the night report indicating clearly where problems were found during observations in order to be able to solve the problems and to allow the observation for the next night. You can find the page to be filled " here."

Policy of the observations.

Data Policy for the Cima Ekar Observatory

The data obtained with the telescope of Cima Ekar (Asiago) have a proprietary period of 1 year since the date of the observations and are available from the Archive (Archive link-ato a http://ia2.oats.inaf.it/archives/asiago), and, for the first ~3 months, also in a mirror/site in Asiago/EKAR (con mirrow/site link-ato a http://hactar.oapd.inaf.it/aao/faces/search.xhtml?dswid=-9999). After the proprietary period all the data are released and become available from the Archive

 

Acknowledgments

It is mandatory that publications based on Ekar-Asiago proprietary or archive observations shall have in a footnote on the first page of the article or in the Acknowledgments section the following citation: "based on observations collected at Copernico (or/and Schmidt) telescope(s) (Asiago, Italy) of the INAF - Osservatorio Astronomico di Padova."

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