Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2021   20:14:13   (   0.05,-104.10) (   0.33,-102.78)  150.41                80
 02/01/2021   08:36:03   (  -0.04,-104.37) (   0.76,-108.07)  421.47                80
 02/02/2021   08:19:57   (  -0.05,-104.37) (  -0.21,-103.53)   95.34                80
 02/04/2021   20:23:08   (   0.04,-104.11) (  -0.01,-104.29)   20.64                80
 02/05/2021   20:01:44   (   0.04,-104.11) (   1.01, -99.76)  495.53                80
 02/07/2021   08:23:32   (  -0.04,-104.37) (   0.14,-105.04)   76.92                80
 02/08/2021   08:07:27   (  -0.03,-104.37) (  -0.89,-100.51)  439.77                80
 02/09/2021   20:29:23   (   0.02,-104.12) (  -0.35,-105.80)  191.79                80
 02/10/2021   20:07:58   (   0.02,-104.12) (   0.68,-101.28)  324.31                80
 02/12/2021   08:29:46   (  -0.02,-104.37) (   0.47,-106.55)  248.94                80