Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2020   22:46:24   (  -0.03,-137.19) (  -0.77,-140.56)  383.17                80
 07/31/2020   22:30:20   (  -0.03,-137.19) (   0.22,-136.02)  132.46                80
 08/02/2020   10:49:29   (  -0.02,-137.18) (   0.90,-141.30)  469.83                80
 08/03/2020   10:30:45   (  -0.01,-137.17) (  -0.09,-136.77)   45.71                80
 08/05/2020   22:33:58   (   0.01,-137.15) (  -0.10,-137.54)   45.36                80
 08/06/2020   22:17:54   (   0.00,-137.14) (   0.95,-133.02)  470.11                80
 08/08/2020   10:37:02   (  -0.00,-137.13) (   0.23,-138.29)  131.71                80
 08/09/2020   10:20:58   (   0.00,-137.12) (  -0.76,-133.76)  383.35                80
 08/10/2020   22:40:15   (   0.00,-137.09) (  -0.42,-139.06)  224.20                80
 08/11/2020   22:24:11   (   0.00,-137.08) (   0.57,-134.53)  290.36                80