Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 6 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/06/2021   20:33:03   (  -0.03,-104.33) (  -0.67,-107.30)  337.47                80
 06/07/2021   20:16:58   (  -0.05,-104.33) (   0.31,-102.76)  178.72                80
 06/09/2021   08:36:06   (   0.01,-104.11) (   0.89,-108.03)  446.59                80
 06/10/2021   08:20:02   (   0.03,-104.11) (  -0.09,-103.49)   69.99                80
 06/12/2021   20:23:17   (  -0.01,-104.32) (   0.01,-104.29)    4.40                80
 06/15/2021   08:23:41   (  -0.00,-104.09) (   0.21,-105.02)  105.68                80
 06/16/2021   08:07:36   (   0.02,-104.09) (  -0.77,-100.48)  410.89                80
 06/17/2021   20:26:54   (   0.01,-104.31) (  -0.34,-105.81)  170.46                80
 06/18/2021   20:10:51   (  -0.00,-104.31) (   0.71,-101.28)  345.82                80