Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 1 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/05/2020   22:27:22   (  -0.02,-137.22) (   0.22,-136.01)  137.10                80
 01/07/2020   10:51:49   (   0.03,-137.22) (   0.97,-141.28)  463.07                80
 01/08/2020   10:30:24   (   0.03,-137.21) (  -0.10,-136.75)   52.95                80
 01/10/2020   22:36:13   (  -0.04,-137.18) (  -0.13,-137.51)   37.57                80
 01/11/2020   22:14:48   (  -0.03,-137.17) (   0.88,-132.97)  477.76                80
 01/13/2020   10:39:14   (   0.04,-137.15) (   0.31,-138.24)  124.22                80
 01/14/2020   10:17:49   (   0.03,-137.14) (  -0.76,-133.72)  390.66                80
 01/15/2020   22:42:24   (  -0.04,-137.11) (  -0.47,-139.01)  216.47                80
 01/16/2020   22:20:58   (  -0.04,-137.09) (   0.54,-134.47)  298.24                80
 01/18/2020   10:45:24   (   0.05,-137.07) (   0.66,-139.73)  304.37                80
 01/19/2020   10:23:59   (   0.04,-137.04) (  -0.36,-135.20)  209.91                80