Variation in Transit Depth Predictions

American Association of Variable Star Observers (AAVSO)
Sun, 03/13/2022 - 22:02

Hi Folks

I was just checking ExoClock and Swarthmoor Transit finder for upcoming targets for my current location (43N,W71). I happened to notice that Hat-P-68b is showing with different transit depths for each of these databases. Can this be correct?

Swarthmoor shows a depth of: 27.0 ppt which, I believe, equates to 29.33 mmg.

Exoclock shows a depth of: 38.0 mmg.

I'd appreciate someone clarifying this for me.