Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2020   21:46:10   (   0.02,-128.09) (   0.68,-125.04)  347.15                80
 08/15/2020   10:05:18   (  -0.03,-128.07) (   0.49,-130.31)  255.01                80
 08/16/2020   09:49:14   (  -0.03,-128.04) (  -0.51,-125.77)  257.46                80
 08/17/2020   22:08:31   (   0.03,-127.94) (  -0.68,-131.08)  357.66                80
 08/18/2020   21:52:26   (   0.03,-127.90) (   0.32,-126.55)  154.63                80
 08/20/2020   10:11:35   (  -0.04,-127.88) (   0.85,-131.82)  448.24                80
 08/21/2020   09:55:30   (  -0.03,-127.84) (  -0.14,-127.28)   63.82                80
 08/23/2020   21:56:03   (   0.04,-127.70) (  -0.04,-128.06)   40.23                80
 08/24/2020   21:39:59   (   0.03,-127.66) (   0.96,-123.52)  471.45                80
 08/26/2020   09:59:07   (  -0.04,-127.63) (   0.21,-128.79)  132.52                80
 08/27/2020   09:43:02   (  -0.04,-127.58) (  -0.78,-124.26)  378.67                80