Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 7 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/25/2020   10:01:34   (   0.01,-128.42) (   0.11,-128.79)   42.01                80
 07/26/2020   09:40:10   (   0.01,-128.42) (  -0.94,-124.26)  474.55                80
 07/27/2020   22:02:06   (  -0.01,-128.37) (  -0.30,-129.56)  135.82                80
 07/28/2020   21:46:03   (  -0.01,-128.37) (   0.75,-125.03)  380.60                80
 07/30/2020   10:07:51   (   0.02,-128.43) (   0.44,-130.30)  214.11                80
 07/31/2020   09:46:27   (   0.02,-128.42) (  -0.55,-125.77)  301.79                80
 08/01/2020   22:08:24   (  -0.02,-128.36) (  -0.63,-131.08)  309.81                80
 08/02/2020   21:52:20   (  -0.02,-128.35) (   0.36,-126.54)  206.04                80
 08/04/2020   10:14:09   (   0.02,-128.40) (   0.77,-131.82)  389.11                80
 08/05/2020   09:52:44   (   0.02,-128.40) (  -0.23,-127.29)  126.53                80
 08/06/2020   22:14:42   (  -0.02,-128.33) (  -0.95,-132.60)  485.52                80
 08/07/2020   21:58:37   (  -0.02,-128.33) (   0.04,-128.06)   30.11                80