Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2021   20:28:40   (  -0.06,-104.32) (  -0.37,-105.77)  164.47                36
 06/02/2021   20:07:59   (  -0.08,-104.32) (   0.61,-101.23)  351.82                80
 06/04/2021   08:29:48   (   0.05,-104.12) (   0.59,-106.50)  271.38                80
 06/05/2021   08:13:43   (   0.06,-104.13) (  -0.39,-101.96)  245.66                80
 06/06/2021   20:33:02   (  -0.04,-104.34) (  -0.68,-107.30)  336.89                80
 06/07/2021   20:16:58   (  -0.05,-104.34) (   0.30,-102.76)  179.53                80
 06/09/2021   08:36:06   (   0.01,-104.12) (   0.90,-108.03)  445.03                80
 06/10/2021   08:20:03   (   0.03,-104.13) (  -0.14,-103.50)   71.80                80
 06/12/2021   20:23:17   (  -0.01,-104.34) (   0.01,-104.29)    6.18                80