Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 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)
 06/08/2020   22:23:49   (   0.00,-137.15) (   0.61,-134.50)  301.82                80
 06/10/2020   10:45:36   (  -0.00,-137.13) (   0.58,-139.77)  300.61                80
 06/11/2020   10:24:10   (  -0.00,-137.11) (  -0.40,-135.23)  214.48                80
 06/12/2020   22:46:07   (  -0.00,-137.09) (  -0.76,-140.53)  391.81                80
 06/13/2020   22:30:01   (   0.00,-137.08) (   0.23,-135.99)  123.21                80
 06/15/2020   10:51:49   (   0.00,-137.05) (   0.96,-141.26)  479.68                80
 06/16/2020   10:30:24   (  -0.00,-137.04) (  -0.08,-136.73)   34.84                80
 06/18/2020   22:33:35   (   0.01,-136.98) (  -0.09,-137.50)   58.64                80
 06/19/2020   22:17:29   (   0.00,-136.96) (   0.90,-132.96)  455.42                80
 06/21/2020   10:39:17   (  -0.00,-136.92) (   0.29,-138.22)  149.15                80