Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 9 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2022   10:38:05   (   0.07,-137.31) (   0.33,-138.43)  127.53                80
 09/16/2022   10:22:01   (   0.07,-137.30) (  -0.68,-133.89)  388.14                80
 09/17/2022   22:41:18   (  -0.06,-137.29) (  -0.48,-139.20)  217.73                80
 09/18/2022   22:25:14   (  -0.06,-137.28) (   0.52,-134.67)  297.53                80
 09/20/2022   10:44:22   (   0.05,-137.26) (   0.65,-139.94)  305.27                80
 09/21/2022   10:28:18   (   0.05,-137.25) (  -0.36,-135.41)  209.62                80
 09/22/2022   22:47:35   (  -0.04,-137.23) (  -0.79,-140.72)  397.32                80
 09/23/2022   22:31:31   (  -0.04,-137.22) (   0.21,-136.19)  117.48                80
 09/25/2022   10:50:38   (   0.03,-137.19) (   1.01,-141.45)  485.91                80
 09/26/2022   10:34:33   (   0.03,-137.17) (  -0.00,-136.92)   28.71                80
 09/28/2022   22:35:05   (  -0.03,-137.12) (  -0.19,-137.69)   65.21                80