Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2020   10:51:49   (   0.03,-137.22) (   0.96,-141.28)  462.98                80
 01/08/2020   10:30:23   (   0.03,-137.21) (  -0.05,-136.74)   53.04                80
 01/10/2020   22:36:13   (  -0.04,-137.19) (  -0.12,-137.51)   37.20                80
 01/11/2020   22:14:48   (  -0.03,-137.17) (   0.89,-132.98)  478.12                80
 01/13/2020   10:39:14   (   0.04,-137.16) (   0.30,-138.24)  123.84                80
 01/14/2020   10:17:49   (   0.03,-137.14) (  -0.71,-133.70)  391.06                80
 01/15/2020   22:42:24   (  -0.04,-137.11) (  -0.46,-139.01)  215.95                80
 01/16/2020   22:20:58   (  -0.04,-137.09) (   0.55,-134.47)  298.80                80
 01/18/2020   10:45:25   (   0.05,-137.07) (   0.65,-139.73)  303.79                80
 01/19/2020   10:23:59   (   0.04,-137.05) (  -0.36,-135.20)  210.51                80