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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/07/2019   22:40:34   (   0.02,-137.18) (  -0.41,-139.14)  223.11                80
 07/08/2019   22:24:29   (   0.02,-137.18) (   0.60,-134.61)  292.89                80
 07/10/2019   10:44:09   (  -0.02,-137.19) (   0.57,-139.88)  306.52                48
 07/11/2019   10:27:33   (  -0.02,-137.18) (  -0.44,-135.35)  209.05                80
 07/12/2019   22:46:49   (   0.02,-137.15) (  -0.77,-140.65)  399.41                80
 07/13/2019   22:30:45   (   0.02,-137.14) (   0.23,-136.12)  115.87                80
 07/15/2019   10:49:53   (  -0.03,-137.14) (   0.93,-141.39)  484.48                80
 07/16/2019   10:33:49   (  -0.03,-137.13) (  -0.08,-136.86)   30.40                80
 07/18/2019   22:34:20   (   0.03,-137.07) (  -0.12,-137.62)   64.48                80
 07/19/2019   22:18:16   (   0.03,-137.05) (   0.89,-133.09)  450.31                80
 07/21/2019   10:37:24   (  -0.03,-137.04) (   0.28,-138.37)  150.86                80