Last Update: 24th December, 2015


Mult PA

A python script
multpa.py
enables users to examine when a target is observable at Nobeyama.
  1. After making the Source Table, type at the prompt in the server ut12x1.nro.nao.ac.jp,
    > obspoint.py
  2. GUI will be shown. Enter the project name where you made Source Tables and click OK button.

  3. A main GUI will be appeared. "Select tables(EL)" is for making EL-LST diagram for your target(s) (Step 4). You can generate the change of position angle in the celestial sphere as a function of LST using "Select tables(PA)" (Step 5). These two scirpts can be used independently or simultaneously.

  4. If you click "Select tables (EL)", following GUI will be generated. The scripts list the Source Tables in your working directroy. Click all Source Table(s) you want to see the EL-LST diagram and then press "Select" button.

  5. This script can not plot the rotation angle for multiple Source Tables (i.e., only one Source Table is allowed to select). Rotation angle is critical for multi-beam receivers such as FOREST, since rotatable range of the receiver is limited (for example, FOREST can rotate +-110 degrees). If your target reaches the limitation of rotation angle of the receiver, you should modify the initial rotation angle in the Device Table. Preferable intial angle of the rotator can be searched with changing "Intial Angle".

    Note 1: you do not need modify the position angle in the Scan Table.
    Note 2: FOREST is the only multi-beam receiver available for the open use for 2015-2016 season.

  6. Click "Plot" button in the main GUI when selection of Source Table(s) is over. Plots of LST-Elavation and Position Angle of your targets will be shown.

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