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Last Update: 25th December 2018

Observing Building

The Nobeyama 45-m telescope is about 500-m from the main building.

Nobeyama 45-m telescope

From December 2018, a traffic circle around the telescope is closed with chains during daytime (8:00-17:00 JST). Please be aware of chains in case that you enter the traffic circle especially by car. If you undo a chain during daytime, please ensure to chain again.

Be Aware of Chain

The observing building is located north of the Nobeyama 45-m telescope. Outdoor stairs lead to the room for the public. You can not enter the observing room from outdoor stairs. The entrance will be locked all the day as the main building. You can release the lock on with the same way for the main building.

45-m observing building

When you go to upstairs, there are the observing room and a common room.

observing room

You can freely use the common room. The common room has equipments such as a refrigerator, a toaster, a pod and a TV with which you can watch local weather news (Note that there is no microwave oven which may affect on observations).

Common Room

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Go to "A Flowchart for the Observations with the 45-m Telescope" page

Observing Room

Operations of the 45-m telecope can be controled via these monitors.

monitors 1

monitors 2
  1. COSMOS monitor
  2. Log monitor
  3. Antenna console
  4. Quick Look monitor
  5. Weather monitor
  6. Tuning monitor for FOREST
  7. Tuning monitor for T70 receiver

Details of monitor 1-4 are described in COSMOS manual (pdf).

You can check the recent schedule next to the monitors.



The 45-m telescope is operated with the system named "COSMOS". You can send observing scripts via the COSMOS GUI which can be found the COSMOS monitor (monitor 1 in the figure above)

COSMOS monitors


When your observing time comes, please confirm the observations of previous observer is complete. Then, input your observing account ID and project name on Group and Project in the COSMOS GUI. Push "Change Observer" button. You will have the priority of the 45-m telescope. The next step to do is tuning of the receivers.

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Go to "A Flowchart for the Observations with the 45-m Telescope" page