Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/08/2020   22:46:10   (  -0.01,-137.19) (  -0.77,-140.59)  387.59                80
 03/09/2020   22:30:06   (  -0.00,-137.18) (   0.23,-136.06)  127.77                80
 03/11/2020   10:51:54   (   0.00,-137.17) (   0.93,-141.33)  474.19                80
 03/12/2020   10:30:30   (   0.00,-137.16) (  -0.08,-136.80)   40.80                80
 03/14/2020   22:33:41   (  -0.01,-137.12) (  -0.13,-137.57)   51.79                80
 03/15/2020   22:17:37   (  -0.01,-137.10) (   0.88,-133.04)  462.82                80
 03/17/2020   10:39:25   (   0.01,-137.08) (   0.28,-138.31)  140.37                80
 03/18/2020   10:18:01   (   0.01,-137.06) (  -0.73,-133.78)  373.75                80
 03/19/2020   22:39:57   (  -0.01,-137.02) (  -0.48,-139.08)  234.87                80
 03/20/2020   22:23:53   (  -0.01,-137.00) (   0.53,-134.55)  279.12                80