CCD temperature (dialog)

The “CCD temperature” dialog is used to display a table or a plot of CCD temperature as a function of time. The plot is useful to check the performance of the camera cooling sub-system.

Activating the dialog

The dialog can be activated:

  • from the main menu: Plot ‣ CCD temperature.

The “Plot CCD temperature” dialog appears. Confirm the dialog.

CCD temperature dialog

CCD temperature

CCD temperature

(1) The actual data set is shown here.

(2) You can switch the labels on the X axis between Julian date (JD) or date and time (UTC).

Data sets

The following data set is available:

  • CCDTEMP - Temperature of the CCD chip as reported in the source files; in centigrades

Context menu

You can select an individual point by a right click, you can also select more than one point by pressing a Shift key and left mouse button and drawing a rectangle in the graph. Then, click the right mouse button on a point in the selection to open the context menu. It provides following functions:

  • Show frame - it shows a preview to a selected frame. It is not allowed when more than one frame is selected.
  • Show properties - it opens a new dialog with properties of selected frame. It is not allowed when more than one frame is selected.
  • Delete from data set - selected measurements are removed from the current curve, the data will be shown again when you make a new curve or Rebuild the actual curve.
  • Remove from project - source frames corresponding to the selected measurements are removed permanently from the list of input files and such measurements won’t be included in any other output. It is not allowed to remove a reference frame.

Statistics

The Statistics is a tool that computes and shows the minimum, maximum, sample mean and standard deviation.

To activate the tool:

  1. From the local menu, select Tools ‣ Statistics. A new panel on the right side of the preview window appears.

If no points are selected, all points in the data set are included in the computation. To restrict the data for the statistics, press and hold the Shift key and draw a rectangle in a graph while you keep the left mouse button pressed down.

Measurement

The Measurement tool displays two cursors in the graph. The cursors can be adjusted by dragging them using the left mouse button. The position of each cursor, their distance and statistics for the data between cursors is presented.

To activate the tool:

  1. From the local menu, select Tools ‣ Measurement. A new panel on the right side of the preview window appears.

    Measurement tool

    Measurement tool

(1) Choose the axis you want to measure.

(2) Positions of the cursor 1 and 2 are displayed here.

(3) Distance between cursor 1 and 2.

(4) When cursors are defined on the independent (X) axis, number of points (frames) between cursor 1 and 2 are displayed and also minimum, maximum, mean value and sample deviation are presented.