Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/18/2020   10:18:01   (   0.02,-137.20) (  -0.77,-133.79)  388.97                80
 03/19/2020   22:39:58   (  -0.02,-137.19) (  -0.44,-139.09)  216.39                80
 03/20/2020   22:23:53   (  -0.01,-137.18) (   0.57,-134.56)  299.12                80
 03/22/2020   10:45:41   (   0.01,-137.17) (   0.58,-139.83)  302.97                80
 03/23/2020   10:24:17   (   0.00,-137.16) (  -0.43,-135.30)  212.22                80
 03/24/2020   22:46:13   (  -0.00,-137.14) (  -0.78,-140.60)  394.23                80
 03/25/2020   22:30:09   (  -0.00,-137.13) (   0.23,-136.07)  120.87                80
 03/27/2020   10:51:57   (  -0.00,-137.12) (   0.92,-141.35)  481.72                80
 03/28/2020   10:30:33   (  -0.01,-137.10) (  -0.09,-136.82)   32.75                80
 03/30/2020   22:33:44   (   0.02,-137.05) (  -0.09,-137.59)   61.61                80