Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/28/2020   10:30:33   (  -0.02,-137.22) (  -0.14,-136.83)   45.95                80
 03/30/2020   22:33:45   (   0.03,-137.20) (  -0.05,-137.60)   44.98                80
 03/31/2020   22:17:41   (   0.03,-137.19) (   0.96,-133.07)  470.41                80
 04/02/2020   10:39:28   (  -0.03,-137.18) (   0.24,-138.33)  131.23                80
 04/03/2020   10:18:04   (  -0.02,-137.17) (  -0.77,-133.80)  383.55                80
 04/04/2020   22:40:00   (   0.02,-137.13) (  -0.43,-139.10)  224.47                80
 04/05/2020   22:23:55   (   0.01,-137.12) (   0.58,-134.57)  290.27                80
 04/07/2020   10:45:43   (  -0.01,-137.10) (   0.62,-139.83)  312.01                80
 04/08/2020   10:24:18   (  -0.02,-137.08) (  -0.40,-135.30)  202.11                80
 04/09/2020   22:46:15   (   0.02,-137.03) (  -0.80,-140.60)  407.37                80