Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/17/2020   22:08:31   (   0.04,-127.95) (  -0.69,-131.07)  356.94                80
 08/18/2020   21:52:27   (   0.04,-127.91) (   0.37,-126.55)  155.60                80
 08/20/2020   10:11:34   (  -0.04,-127.90) (   0.87,-131.81)  447.12                80
 08/21/2020   09:55:31   (  -0.04,-127.86) (  -0.19,-127.29)   65.21                80
 08/23/2020   21:56:03   (   0.04,-127.72) (  -0.05,-128.05)   38.13                80
 08/24/2020   21:39:58   (   0.04,-127.68) (   0.95,-123.52)  473.82                80
 08/26/2020   09:59:07   (  -0.05,-127.65) (   0.23,-128.79)  130.01                80
 08/27/2020   09:43:02   (  -0.05,-127.61) (  -0.77,-124.25)  381.42                80
 08/28/2020   22:02:19   (   0.06,-127.50) (  -0.40,-129.56)  235.28                80
 08/29/2020   21:46:15   (   0.06,-127.45) (   0.60,-125.03)  276.01                80
 08/31/2020   10:05:23   (  -0.06,-127.42) (   0.58,-130.30)  328.33                80