Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2020   22:02:19   (   0.06,-127.51) (  -0.40,-129.56)  233.94                80
 08/29/2020   21:46:15   (   0.07,-127.46) (   0.60,-125.03)  277.42                80
 08/31/2020   10:05:23   (  -0.07,-127.44) (   0.58,-130.30)  326.12                80
 09/01/2020   09:49:19   (  -0.07,-127.39) (  -0.42,-125.76)  185.16                80
 09/02/2020   22:08:36   (   0.08,-127.27) (  -0.75,-131.07)  432.31                80
 09/03/2020   21:52:32   (   0.08,-127.23) (   0.26,-126.54)   79.07                80
 09/06/2020   09:52:54   (  -0.08,-127.15) (  -0.03,-127.26)   13.88                80
 09/07/2020   09:36:50   (  -0.08,-127.10) (  -1.03,-122.73)  497.28                80
 09/08/2020   21:56:07   (   0.08,-126.97) (  -0.13,-128.04)  121.19                80
 09/09/2020   21:40:03   (   0.08,-126.92) (   0.87,-123.51)  389.30                80