Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2019   10:46:17   (  -0.02,-137.19) (   0.58,-139.88)  306.53                80
 07/11/2019   10:24:53   (  -0.02,-137.18) (  -0.42,-135.35)  208.95                80
 07/12/2019   22:46:49   (   0.02,-137.15) (  -0.79,-140.64)  399.58                80
 07/13/2019   22:30:45   (   0.02,-137.13) (   0.27,-136.13)  115.68                80
 07/15/2019   10:49:53   (  -0.03,-137.14) (   0.95,-141.39)  484.70                80
 07/16/2019   10:31:08   (  -0.02,-137.12) (  -0.06,-136.85)   30.21                80
 07/18/2019   22:34:21   (   0.03,-137.06) (  -0.08,-137.63)   64.86                80
 07/19/2019   22:18:17   (   0.02,-137.04) (   0.93,-133.10)  449.83                80
 07/21/2019   10:37:24   (  -0.03,-137.04) (   0.29,-138.36)  151.33                80
 07/22/2019   10:21:19   (  -0.02,-137.02) (  -0.72,-133.83)  363.01                80