Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/06/2019   10:18:37   (  -0.02,-137.21) (  -0.79,-133.84)  384.09                80
 07/07/2019   22:40:33   (   0.02,-137.18) (  -0.43,-139.14)  223.05                80
 07/08/2019   22:24:29   (   0.01,-137.18) (   0.58,-134.61)  292.95                80
 07/10/2019   10:43:37   (  -0.02,-137.19) (   0.59,-139.88)  306.53                80
 07/11/2019   10:27:33   (  -0.02,-137.18) (  -0.42,-135.35)  209.04                80
 07/12/2019   22:46:50   (   0.02,-137.15) (  -0.74,-140.66)  399.32                80
 07/13/2019   22:30:45   (   0.02,-137.14) (   0.27,-136.13)  115.96                80
 07/15/2019   10:49:53   (  -0.03,-137.14) (   0.95,-141.38)  484.53                80
 07/16/2019   10:33:49   (  -0.03,-137.13) (  -0.11,-136.87)   30.52                80
 07/18/2019   22:34:21   (   0.03,-137.07) (  -0.09,-137.63)   64.30                80