Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2020   10:45:33   (   0.04,-137.21) (   0.63,-139.79)  293.33                80
 02/20/2020   10:24:08   (   0.04,-137.21) (  -0.38,-135.25)  222.78                80
 02/21/2020   22:46:06   (  -0.04,-137.22) (  -0.78,-140.57)  381.51                80
 02/22/2020   22:30:01   (  -0.04,-137.21) (   0.22,-136.04)  134.44                80
 02/24/2020   10:51:49   (   0.04,-137.20) (   0.96,-141.31)  467.68                80
 02/25/2020   10:30:25   (   0.04,-137.20) (  -0.05,-136.77)   47.98                80
 02/27/2020   22:33:38   (  -0.04,-137.19) (  -0.10,-137.56)   41.76                80
 02/28/2020   22:17:33   (  -0.05,-137.18) (   0.90,-133.03)  473.59                80
 03/01/2020   10:39:22   (   0.05,-137.15) (   0.28,-138.30)  129.80                80
 03/02/2020   10:17:57   (   0.05,-137.14) (  -0.73,-133.77)  384.94                80