Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 6 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2020   10:01:20   (  -0.00,-127.97) (   0.15,-128.77)   90.67                80
 06/08/2020   09:39:54   (  -0.02,-127.94) (  -0.83,-124.23)  422.44                80
 06/09/2020   22:01:49   (  -0.00,-127.88) (  -0.39,-129.52)  187.85                80
 06/10/2020   21:45:45   (   0.00,-127.85) (   0.65,-124.99)  325.75                80
 06/12/2020   10:07:32   (   0.01,-127.83) (   0.54,-130.26)  276.31                80
 06/13/2020   09:46:07   (   0.00,-127.80) (  -0.44,-125.72)  236.70                80
 06/14/2020   22:08:02   (  -0.02,-127.73) (  -0.77,-131.01)  374.70                80
 06/15/2020   21:51:58   (  -0.01,-127.70) (   0.27,-126.49)  138.57                80
 06/17/2020   10:13:45   (   0.02,-127.68) (   0.92,-131.75)  463.51                80
 06/18/2020   09:52:20   (   0.01,-127.64) (  -0.06,-127.21)   48.91                80