Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2020   22:21:13   (   0.01,-137.20) (   0.62,-134.54)  303.89                80
 05/25/2020   10:45:40   (  -0.01,-137.20) (   0.57,-139.80)  296.84                80
 05/26/2020   10:24:15   (  -0.01,-137.19) (  -0.41,-135.26)  219.03                80
 05/27/2020   22:46:11   (   0.01,-137.18) (  -0.76,-140.57)  386.61                80
 05/28/2020   22:30:06   (   0.01,-137.17) (   0.28,-136.04)  128.94                80
 05/30/2020   10:51:54   (  -0.00,-137.15) (   0.91,-141.30)  472.97                80
 05/31/2020   10:30:28   (  -0.00,-137.14) (  -0.07,-136.76)   42.31                80
 06/02/2020   22:33:39   (   0.00,-137.10) (  -0.12,-137.53)   49.47                80
 06/03/2020   22:17:35   (   0.00,-137.08) (   0.92,-133.00)  465.34                80
 06/05/2020   10:36:42   (   0.00,-137.05) (   0.27,-138.26)  137.88                80