Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2019   22:18:13   (   0.02,-137.20) (   0.95,-133.10)  466.95                80
 07/05/2019   10:37:21   (  -0.02,-137.21) (   0.22,-138.37)  132.13                80
 07/06/2019   10:21:17   (  -0.01,-137.21) (  -0.78,-133.84)  383.98                80
 07/07/2019   22:40:33   (   0.01,-137.18) (  -0.43,-139.14)  223.15                80
 07/08/2019   22:24:29   (   0.01,-137.18) (   0.57,-134.61)  292.82                80
 07/10/2019   10:43:37   (  -0.02,-137.19) (   0.60,-139.88)  306.88                80
 07/11/2019   10:27:32   (  -0.01,-137.18) (  -0.41,-135.35)  208.66                80
 07/12/2019   22:46:50   (   0.02,-137.15) (  -0.75,-140.66)  399.69                80
 07/13/2019   22:30:45   (   0.02,-137.13) (   0.26,-136.12)  115.54                80
 07/15/2019   10:49:54   (  -0.03,-137.13) (   0.90,-141.40)  485.18                80
 07/16/2019   10:33:49   (  -0.02,-137.12) (  -0.10,-136.86)   29.78                80