At this point the top of the page will show a set of bellweather current daily temperature obsevations followed by plots of those temperatures. Once Webb has reached L2, this page will transition to tracking Webb's commissioning steps including the vital process of cooling to operating temperatures and mirror alignment, followed by instrument commissioning. Below those numbers, is a timeline switchable between DAYS/DISTANCE since launch, a thumbnail of Webb's MOST RECENTLY COMPLETED deployment step marking its place in TIME or DISTANCE on its 30 day journey to L2 followed by details of the current deployment step shown with a larger image, info and links. While Webb is in flight to L2, its journey is tracked numerically at the top of the page showing its progress in distance, speed, percentage of trip complete to L2. What you see is the final state of Webb at the time of the delivery of its first images.

The keyboard shortcut to enable this feature is Ctrl+Shift+C.During Webb's launch, deployment and commissioning, this page tracked Webb's current state in detail on its journey from Earth to entry into its L2 halo orbit through all steps of its deployment, during its cooldown to operational temperatures, through its instrument commissioning and finally to the delivery of its first science images. Click Scale in the Properties Toolbar to select scales. When new calibrations have been determined, they can then be selected in the main window of PDF-XChange Editor when using the measurement tools. Enter a numerical amount followed by the desired unit of measurement for the scale. Use the second number box to determine the scale.Select a unit of measurement from the list. The distance determined in the step outlined above is detailed in the top number box.Drag it to the point at which the distance to be calibrated finishes. A blue line will appear within the document. Click to determine the starting point of the distance to be calibrated. When the Calibrate Measurement feature is enabled, the pointer will become a crosshairs icon. Click Calibrate Measurement to determine scales for use in conjunction with the measuring tools:įigure 1.

Pdf xchange viewer tracker