Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2020   10:17:53   (   0.03,-137.21) (  -0.77,-133.75)  395.50                80
 02/16/2020   22:39:49   (  -0.04,-137.21) (  -0.45,-139.05)  209.40                80
 02/17/2020   22:23:44   (  -0.04,-137.20) (   0.55,-134.51)  306.11                80
 02/19/2020   10:45:33   (   0.05,-137.18) (   0.63,-139.79)  296.72                80
 02/20/2020   10:24:08   (   0.05,-137.17) (  -0.37,-135.25)  218.39                80
 02/21/2020   22:46:05   (  -0.05,-137.16) (  -0.84,-140.55)  387.57                80
 02/22/2020   22:30:01   (  -0.05,-137.15) (   0.22,-136.04)  127.49                80
 02/24/2020   10:51:48   (   0.06,-137.12) (   1.02,-141.29)  475.87                80
 02/25/2020   10:30:25   (   0.06,-137.11) (  -0.05,-136.77)   38.92                80
 02/27/2020   22:33:37   (  -0.06,-137.07) (  -0.16,-137.54)   53.49                80
 02/28/2020   22:17:32   (  -0.06,-137.06) (   0.85,-133.01)  460.84                80