Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2020   10:43:25   (   0.03,-137.21) (   0.63,-139.81)  296.72                80
 10/17/2020   10:27:21   (   0.03,-137.21) (  -0.42,-135.29)  219.76                80
 10/18/2020   22:46:36   (  -0.03,-137.20) (  -0.78,-140.59)  385.60                80
 10/19/2020   22:30:31   (  -0.03,-137.20) (   0.21,-136.05)  130.35                80
 10/21/2020   10:49:38   (   0.03,-137.19) (   0.97,-141.32)  471.25                80
 10/22/2020   10:33:33   (   0.03,-137.18) (  -0.08,-136.80)   44.28                80
 10/24/2020   22:34:03   (  -0.02,-137.15) (  -0.12,-137.57)   47.15                80
 10/25/2020   22:17:58   (  -0.02,-137.14) (   0.87,-133.03)  468.14                80
 10/27/2020   10:37:05   (   0.01,-137.13) (   0.30,-138.30)  134.12                80
 10/28/2020   10:21:01   (   0.01,-137.12) (  -0.75,-133.78)  381.06                80
 10/29/2020   22:40:16   (  -0.01,-137.09) (  -0.44,-139.08)  226.09                80