Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2019   22:40:15   (   0.01,-137.18) (  -0.43,-139.10)  218.82                80
 05/21/2019   22:24:10   (   0.00,-137.18) (   0.57,-134.57)  297.50                80
 05/23/2019   10:46:00   (  -0.00,-137.20) (   0.57,-139.85)  301.15                80
 05/24/2019   10:24:35   (   0.01,-137.20) (  -0.42,-135.32)  214.52                80
 05/25/2019   22:46:31   (  -0.01,-137.16) (  -0.81,-140.61)  394.13                80
 05/26/2019   22:30:28   (  -0.01,-137.15) (   0.25,-136.09)  121.64                80
 05/28/2019   10:52:16   (   0.01,-137.17) (   0.95,-141.36)  477.32                80
 05/29/2019   10:30:52   (   0.01,-137.16) (  -0.04,-136.82)   37.84                80
 05/31/2019   22:34:05   (  -0.00,-137.10) (  -0.12,-137.60)   57.62                80
 06/01/2019   22:18:00   (  -0.00,-137.08) (   0.87,-133.07)  457.08                80