Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/07/2019   10:18:43   (  -0.03,-137.20) (  -0.78,-133.84)  383.33                80
 08/08/2019   22:40:41   (   0.04,-137.18) (  -0.38,-139.15)  223.13                80
 08/09/2019   22:24:36   (   0.04,-137.18) (   0.64,-134.62)  292.48                80
 08/11/2019   10:43:43   (  -0.05,-137.17) (   0.57,-139.88)  308.73                80
 08/12/2019   10:27:39   (  -0.05,-137.16) (  -0.45,-135.35)  206.46                80
 08/13/2019   22:46:56   (   0.06,-137.13) (  -0.70,-140.66)  401.11                80
 08/14/2019   22:30:51   (   0.06,-137.12) (   0.25,-136.11)  113.98                80
 08/16/2019   10:49:59   (  -0.06,-137.11) (   0.89,-141.39)  487.84                80
 08/17/2019   10:33:55   (  -0.06,-137.09) (  -0.12,-136.86)   26.96                80
 08/19/2019   22:34:27   (   0.06,-137.04) (  -0.06,-137.63)   66.70                80