Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/09/2021   20:10:38   (   0.07,-104.09) (   0.71,-101.26)  321.91                80
 01/11/2021   08:29:46   (  -0.07,-104.36) (   0.44,-106.54)  248.53                80
 01/12/2021   08:11:02   (  -0.07,-104.36) (  -0.57,-102.01)  267.85                80
 01/13/2021   20:32:58   (   0.07,-104.09) (  -0.63,-107.31)  367.20                80
 01/14/2021   20:16:54   (   0.07,-104.09) (   0.39,-102.78)  149.40                80
 01/16/2021   08:36:02   (  -0.07,-104.37) (   0.77,-108.06)  420.50                80
 01/17/2021   08:19:57   (  -0.07,-104.38) (  -0.25,-103.53)   96.35                80
 01/19/2021   20:23:08   (   0.07,-104.11) (   0.02,-104.29)   20.93                80
 01/20/2021   20:04:24   (   0.07,-104.12) (   1.03, -99.76)  496.08                80
 01/22/2021   08:23:33   (  -0.07,-104.40) (   0.06,-105.05)   73.38                80