Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/02/2020   10:05:33   (  -0.13,-128.44) (   0.30,-130.36)  218.95                80
 10/03/2020   09:49:28   (  -0.13,-128.45) (  -0.74,-125.84)  297.96                80
 10/04/2020   22:11:24   (   0.13,-128.42) (  -0.46,-131.14)  309.47                80
 10/05/2020   21:49:58   (   0.13,-128.42) (   0.52,-126.60)  206.81                80
 10/07/2020   10:11:46   (  -0.13,-128.45) (   0.66,-131.87)  391.02                80
 10/08/2020   09:55:41   (  -0.14,-128.44) (  -0.38,-127.35)  124.95                80
 10/09/2020   22:17:36   (   0.13,-128.41) (  -0.82,-132.65)  483.47                80
 10/10/2020   21:56:12   (   0.14,-128.40) (   0.23,-128.13)   31.92                80
 10/13/2020   09:59:14   (  -0.14,-128.40) (  -0.03,-128.86)   52.33                80
 10/14/2020   09:43:09   (  -0.15,-128.39) (  -1.08,-124.34)  462.89                80