Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/13/2019   22:24:21   (   0.00,-137.21) (   0.59,-134.59)  299.75                80
 11/15/2019   10:46:08   (   0.00,-137.21) (   0.57,-139.86)  300.85                80
 11/16/2019   10:24:43   (   0.01,-137.21) (  -0.42,-135.32)  215.09                80
 11/17/2019   22:46:38   (  -0.01,-137.19) (  -0.79,-140.62)  390.89                80
 11/18/2019   22:30:34   (  -0.01,-137.18) (   0.26,-136.10)  124.68                80
 11/20/2019   10:52:20   (   0.01,-137.17) (   0.95,-141.36)  477.19                80
 11/21/2019   10:30:55   (   0.01,-137.16) (  -0.04,-136.82)   38.09                80
 11/23/2019   22:34:05   (  -0.01,-137.12) (  -0.11,-137.60)   54.04                80
 11/24/2019   22:18:00   (  -0.01,-137.11) (   0.88,-133.06)  460.88                80
 11/26/2019   10:39:47   (   0.02,-137.09) (   0.27,-138.33)  141.90                80
 11/27/2019   10:18:22   (   0.02,-137.07) (  -0.72,-133.80)  372.57                80