Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2020   10:39:29   (  -0.02,-137.22) (   0.21,-138.33)  126.90                80
 04/03/2020   10:18:04   (  -0.02,-137.22) (  -0.80,-133.80)  389.45                80
 04/04/2020   22:40:00   (   0.01,-137.21) (  -0.40,-139.10)  216.26                80
 04/05/2020   22:23:56   (   0.01,-137.20) (   0.61,-134.57)  299.92                80
 04/07/2020   10:45:43   (  -0.01,-137.21) (   0.59,-139.84)  299.99                80
 04/08/2020   10:24:19   (  -0.01,-137.20) (  -0.43,-135.31)  215.65                80
 04/09/2020   22:46:15   (   0.01,-137.18) (  -0.77,-140.61)  391.47                80
 04/10/2020   22:30:11   (   0.02,-137.17) (   0.25,-136.08)  123.92                80
 04/12/2020   10:51:59   (  -0.01,-137.16) (   0.89,-141.36)  477.00                80
 04/13/2020   10:30:33   (  -0.01,-137.15) (  -0.07,-136.81)   37.97                80