Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 8 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)
 08/16/2020   22:27:48   (  -0.03,-137.20) (   0.25,-136.04)  132.05                80
 08/18/2020   10:52:15   (   0.03,-137.19) (   0.98,-141.30)  469.19                80
 08/19/2020   10:33:32   (   0.02,-137.19) (  -0.08,-136.78)   46.54                80
 08/21/2020   22:34:05   (  -0.01,-137.18) (  -0.11,-137.55)   42.65                80
 08/22/2020   22:18:00   (  -0.02,-137.17) (   0.89,-133.02)  473.07                80
 08/24/2020   10:37:09   (   0.01,-137.16) (   0.28,-138.29)  129.39                80
 08/25/2020   10:21:04   (   0.01,-137.15) (  -0.72,-133.76)  385.75                80
 08/26/2020   22:40:21   (  -0.00,-137.13) (  -0.46,-139.06)  220.89                80
 08/27/2020   22:24:18   (   0.01,-137.12) (   0.60,-134.54)  293.72                80
 08/29/2020   10:43:26   (  -0.01,-137.09) (   0.58,-139.81)  309.97                80
 08/30/2020   10:27:22   (  -0.00,-137.07) (  -0.42,-135.28)  204.60                80