Re: Perform Differential Relative Photometry on a Time Series of Images

Posted by karenacollins on May 24, 2018; 6:58am
URL: http://astroimagej.170.s1.nabble.com/Perform-Differential-Relative-Photometry-on-a-Time-Series-of-Images-tp234p1009.html

Hi Ganesh,

The setting for the default time (x-axis) data column is at the top left of the Multi-Plot_Main panel. Try "J.D.-2400000" first:


Also, make sure the X-axis and Y-axis scaling are set to "Auto" on the same panel:



If that doesn't give you a plot of your data, set the Default X-axis column to "blank" like this:


which will force the Y-axis samples to be plotted at evenly spaced distances. This setting is not what you want as a final plot, but should give you a plot. Then we can figure out why the usual time columns are not working.

Karen

On 5/24/2018 1:00 AM, Ganesh [via AstroImageJ] wrote:

Hi Karen,

I was using IRIS for variable star photometry. But data analysis by IRIS is quite lengthier
Now I'm learning to use astroimagej. While performing multi-aperture photometry there is no change in x axis of plot I.e time. Where should I add time in the graph.
May be I'm missing something option. Please help me in this.

Regards,
Ganesh Pawar

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