Re: why do i get a straight line transit fit?

Posted by gboyle on Apr 05, 2019; 12:18pm
URL: http://astroimagej.170.s1.nabble.com/why-do-i-get-a-straight-line-transit-fit-tp1120p1123.html

Thanks Karen

I am a total idiot and you , as ever, are very kind!!

That did the trick!!

Best

Gavin

Sent from my iPad

On 5 Apr 2019, at 13:13, karenacollins [via AstroImageJ] <[hidden email]> wrote:

The "left" and "right" markers on Multi-plot Main should be set to the approximate apparent time of start of ingress (t0) and end of egress (t4), respectively. In other words, make sure they are set similar to your predicted ingress and egress markers in this case (those two are for display purposes only to mark the predicted times, rather than the actual apparent times). Also, it looks like you have an airmass trend, so I would add airmass detrending to the model.

If that doesn't do the trick, let us know.

Karen

On 4/5/2019 7:14 AM, gboyle [via AstroImageJ] wrote:

anyone know why my data results in a straight line transit fit?
data looks like i should have a decent light curve but for some reason i just get a straight line...?
thanks
gavin

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