Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 4 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/16/2022   22:27:55   (   0.04,-137.18) (   0.27,-136.05)  128.31                80
 04/18/2022   10:52:23   (  -0.03,-137.17) (   0.89,-141.32)  472.49                80
 04/19/2022   10:30:57   (  -0.03,-137.16) (  -0.10,-136.78)   43.01                80
 04/21/2022   22:34:08   (   0.03,-137.12) (  -0.05,-137.55)   48.62                80
 04/22/2022   22:18:03   (   0.03,-137.11) (   0.94,-133.02)  466.32                80
 04/24/2022   10:39:49   (  -0.02,-137.09) (   0.27,-138.27)  136.04                80
 04/25/2022   10:18:24   (  -0.02,-137.07) (  -0.78,-133.75)  378.75                80
 04/26/2022   22:40:20   (   0.01,-137.04) (  -0.41,-139.05)  228.63                80
 04/27/2022   22:24:14   (   0.01,-137.02) (   0.58,-134.51)  286.12                80
 04/29/2022   10:46:01   (  -0.01,-137.00) (   0.63,-139.77)  316.57                80