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Last Update: 1st August 2018
For Users of the Nobeyama 45-m Telescope Open Use Program
In order to maximise results from the open use observation, the observatory assign a staff as an observation assistant.
Rules for the assistant are as follows:
- NRO recommends that observers learn basic operations with technical support from the NRO assistant so that they can conduct observations by themselves.
- To promote smooth open-use observations, the NRO assistant will help the observer at the 45-m telescope (the operation building and the antenna) as necessary.
- The scope of the support will be determined according to the skill and experience of the observer through discussions between the observer and the NRO assistant.
- Assistance will be provided by NRO staffs. When NRO staff serves as an assistant, he/she will see whether your observation is on the right track and you have basic operating skills. Once it is confirmed that you can conduct observations by yourself, the assistant may occasionally leave the operation building and work in the main building with the consent of the observers. The assistant will give you his/her phone number before leaving.
- The assistant on duty may have one-hour break during observation with the consent of the observers. We appreciate your understanding.
The Nobeyama 45-m Telescope started a program called the ''Backup Program''.
This program allows the observers to pass his/her observation time to an alternative low-frequency observation which is adopted as a backup observation when the observer finds it impossible to conduct his/her originally scheduled high-frequency observation due to bad weather. This program provides an advantage to the observers who decide not to carry out their high-frequency observations under adverse weather conditions because they can obtain additional observation time equivalent to the time allocated for the backup observation (Note that additional time is not allocated again in the case that his/her additional time is given to "Backup Program".).
The Backup Program shall be performed by following the instructions below.
- The observer shall decide whether to switch the scheduled observation to a backup observation (or vice versa) on a 3-hour basis counting from the start time of your observation (or you may decide it after checking Tsys or Y-factor).
- The observer shall notify an assistant of his/her intention to use the Backup Program, and the assistant shall notify it to the backup observer.
The observer can switch to the backup observation only if the backup observation is also allocated to the corresponding time.
The schedule can be consulted at the 45m observing building and the Remote Operation Room in Mitaka Campus.
In case that the observer demanded to observe from the home institute, the observatory send the schedule for backup observations.
- The judge to switch back and forth the priority of observations should be performed every 3 hours after backup observers got a priority (Even if the weather becomes better during backup observations, backup observers can have a prority until 3 hours past).
When the scheduled time for the next observer has come, the priority is moved to the next observer (not to the backup observer).
When the observations are conducted without the presence of a PI (principal investigator), the PI shall explain the above-mentioned rules to his/her collaborators who carry out the observations so that the backup observation can be performed smoothly.
* In the case of observation at 100 GHz, no good results can be expected under the following conditions:
If you are not an experienced observer, decide whether to use the Backup Program according to these criteria.
- Maximum wind velocity: 10 m/s or greater
- System noise temperature: 1000 K or higher