Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2021   20:16:58   (  -0.04,-104.33) (   0.33,-102.77)  178.74                80
 06/09/2021   08:36:07   (   0.01,-104.11) (   0.88,-108.03)  446.67                80
 06/10/2021   08:20:02   (   0.02,-104.11) (  -0.11,-103.50)   69.86                80
 06/12/2021   20:20:36   (  -0.01,-104.32) (  -0.03,-104.28)    5.16                80
 06/15/2021   08:23:41   (  -0.00,-104.09) (   0.20,-105.02)  105.89                80
 06/16/2021   08:07:36   (   0.02,-104.09) (  -0.79,-100.49)  410.66                80
 06/17/2021   20:26:55   (   0.01,-104.31) (  -0.33,-105.81)  170.66                80
 06/18/2021   20:10:50   (  -0.00,-104.31) (   0.66,-101.27)  345.57                80
 06/20/2021   08:30:00   (  -0.03,-104.08) (   0.49,-106.55)  281.34                80