N.I.N.A. Session Analysis - Version 0.98 available  

A macOS application to analyze Imaging sessions done with N.I.N.A (de/eng).


  • Intel/ARM based CPU, macOS Sonoma 14.4 or higher 
  • N.I.N.A: Session Metadata Plugin installed (csv and json supported)
  • Images stored as FITS


SSelect the folder where your lights are stored. You can also select sessions over multiple nights. For your convenience, the folders should also contain the ImageMetaData.csv files, the PHD2 Guidelog files and optionally also the NINA Logfiles. The app will scan these folders and will automatically read all the available information and will analyze the images. 


Now you can inspect the results of the imaging sessions. You should start with the overview.  A lot of mostly interactive charts will give you a good summary of your imaging performance. Clicking on the charts will give you different charts on your screen, where you can click and inspect the image data.  These charts also include AutoFocus Runs (NINA log file required). 

Ever wanted to see how good your dithering works? Here it goes! The drift panel shows all your captured imaging frames, so you can see the effects of dithering, but also drifted images, Animate this screen to see how your session worked.

You can inspect all the data for each image by table. If there are too many values, don’t worry - you can select all columns to be shown. Marking an image as „Bad“ will rename the image file with „BAD“ as prefix the same way N.I.N.A. does. The rulers in the Data screen define which values will be shown as red to give you a hint for bad data.  When you select an image you will see the corresponding guide graph, so you can see, if the HFR value or Eccentricity value is based on bad guiding. 

Inspect Guiding calibration and your guiding through your session. See, if your telescope was well-balanced or not. 

Have a look inside the N.I.N.A log file. You can search for a special word inside the log and use the timeline bar on the left-hand side to jump to each hit. Or you can select one of the found categories to see what’s happening while taking an exposure.  

In the sky section you can see where your target was located on the sky during each exposure. You will see the guiding for this image and you will have all significant values available. This gives you a good overall impression about your session. 

You can filter each view by session date, target, the used filter, the pier side and the exposure time. 

Copyright 2023 by Jürgen Terpe