Video Tutorials

This is a one stop shop providing an overview of all of the JWST proposing help videos that are available on all topics.

On this page

See also: Exposure Time Calculator Old and Astronomers Proposal Tool
See also: The JWST Observer YouTube channel, where the actual videos reside.

This is a one stop shop for all of the proposing help videos. Many of these are linked into articles as well at the point of need.

Due to the dynamic development environment and the effort to remake videos, you might see small differences between the displays in some help videos relative to the released versions of the tools. Most of the help being provided in the videos is general in nature and does not depend on the specific tool versions. If you detect any serious problems due to versions that would cause a video to be incorrect, please help us by contacting the JWST Help Desk.

This list includes links to both YouTube videos that have been posted to the JWST Observer YouTube channel as well as existing video help (from HST, but with relevance to JWST) that are still hosted locally at STScI.  The eventual goal is to get everything hosted on the YouTube channel.  For now, the Table below contains a column showing where the current video file lives.

For the YouTube videos, users should be aware of some nice features provided by the controls at the lower right corner of the video window.  These include the ability to go to full screen (to better see details), the "CC" button, which provides automatic closed captioning of the audio stream, and the Setting–Quality option, that permits the user to control the resolution and file size that fits their needs.   Controls at lower left allow the user to start and stop the video and mute the sound it needed.

Master list of available video help 

Here are the links and short descriptions for each video.  URLs are encoded in the first column.

APT and Aladin Video help


5:00YouTubeThis video provides a general overview of the APT graphical user interface and how to interact with it to enter and validate proposal information.



This tutorial demonstrates how to get started in APT and open a JWST proposal.



This tutorial demonstrates how to use the Visit Planner function in the APT.



This tutorial describes how to access and specify special requirements in APT.



This tutorial describes how to use APT for creating and Manipulating mosaics.

4:30STScIThis tutorial describes the various ways to access and review error and warning messages in APT. It was made for HST but has relevance to JWST users.
5:30STScIThis tutorial describes using the differencing tool in APT to compare two proposals. It was made for HST but has relevance to JWST users.
3:30STScIThis tutorial describes how to use the "Find" functionality in APT. It was made for HST but has relevance to JWST users.
2:30STScIThis tutorial demonstrates accessing orbital elements for known moving targets from within APT. It was made for HST but works exactly the same way for JWST.
7:00STScIThis tutorial demonstrates how to access and use the MAST Discovery Portal interface from APT. It was made for HST but works exactly the same way for JWST.
3:30STScIThis video demonstrates the use of the Hubble Legacy Archive, activated from within APT/Aladin.
 4:06YouTube This video is a general overview of using the Aladin visualizer from within APT. It shows the basic operation of Aladin from within APT, including panning, zooming, and rotating apertures.
5:43YouTubeThis video shows additional features of using Aladin within the APT environment, including repositioning and offsetting targets and feeding the information back into your APT proposal.
6:10YouTubeThis video provides an example of using Aladin with the APT Visit Planner to set position angles and verify schedulability.
 1:30STScI This video demonstrates the multiview functionality of Aladin.
4:13STScIThis video shows how to use APT to make target confirmation charts.

ETC Video Help

9:52YouTubeThis tutorial demonstrates how to create sources with a range of properties in the JWST Exposure Time Calculator (ETC) and assign them to scenes that can be used for ETC simulations.
3:18YouTubeThis tutorial demonstrates how to create ETC scenes from sources already defined in the ETC source library.
9:15YouTubeThis video demonstrates how to set up a calculation in the JWST Exposure Time Calculator using an existing scene.
6:14YouTubeThis video demonstrates how to calculate signal-to-noise ratio for a range of exposure parameters in ETC with Batch Expansion.

NIRSpec Observation Visibility Tool Video Help

1:36YouTubeIt is possible to create two-tile NIRCam mosaics using NOVT. This video shows how to display a mosaic using the offset parameters
1:36YouTubeThree NIRCam dither patterns are available. This video shows how to display them on a FITS image.
1:11YouTubeNOVT allows the user to display both NIRCam channels separately or together in different configurations. This video shows how to display them on a FITS image.
1:04YouTubeNOVT allows the user to display the NIRSpec four MSA quadrants and the IFU field of view on a user-provided FITS file. This video shows how to display the quadrants in several configurations.
1:38YouTube NOVT works as a Python wrapper of DS9 and a few parameters can be modified from the GUI. This video shows how to make changes to the display to accommodate the user’s needs.

NIRSpec MSA Planning Tool Video Help

1:53YouTubeThis video shows some of the tools available to the user under the Plans pane in MPT.
1:15YouTubeThis video shows the available slitlet shapes, the centering constraints, and the dithering setup in MPT.
2:23YouTubeThis video shows  how to fill in the Exposure Setup Section in MPT, the Search Grid, and the Parameters Section in MPT.
1:31YouTubeThis video shows  how to import a parent catalog into MPT and assign names to each column.
1:23YouTubeThis video shows  how to  assign an Aperture PA in MPT based on the GTVT output. It also shows how to select the Primary and Filler Candidate Lists.
1:27YouTubeThis video shows  how to view the MSA at the source level and export the slitlets to Aladin.
1:13YouTubeThis video shows how to create Candidate Sets based on a parent catalog.

If you have questions beyond the information covered in these help videos, please look elsewhere in the JWST user documentation or contact the JWST Help Desk.



Latest updates
    Added new YouTube links for 3 Aladin-APT articles, consistent with APT 25.4.2

    Added new YouTube links for 5 APT articles, consistent with APT 25.4.1