Error messege during photometry

Posted by Eric on Nov 10, 2018; 10:29pm
URL: http://astroimagej.170.s1.nabble.com/Error-messege-during-photometry-tp1065.html

Hi,
trying to do ensemble differential photometry.  I've managed to get through a few previous image runs.

After using DP to plate solve  and having these  images sent to a separate folder I then open up these solved  images via image sequence.

When I attempt to place the photometry apertures I'm getting the following error message,

***ERROR: No signal for centroid in aperture C1 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture C2 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture C3 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture C4 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture C5 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture T6 of image 1st test image 90sec.fit.
********: Measurements are referenced to the non-centroided aperture location
***ERROR: No signal for centroid in aperture T7 of image 1st test image 90s

Any help would be appreciated.

Eric