Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/16/2021   20:29:11   (  -0.11,-104.32) (  -0.45,-105.72)  160.29                80
 05/17/2021   20:07:47   (  -0.13,-104.31) (   0.59,-101.19)  355.12                80
 05/19/2021   08:29:36   (   0.11,-104.15) (   0.62,-106.46)  262.86                80
 05/20/2021   08:13:31   (   0.12,-104.15) (  -0.36,-101.92)  253.73                80
 05/21/2021   20:35:29   (  -0.10,-104.31) (  -0.79,-107.24)  334.77                80
 05/22/2021   20:14:06   (  -0.12,-104.30) (   0.25,-102.72)  180.82                80
 05/24/2021   08:35:54   (   0.09,-104.13) (   0.96,-107.98)  439.31                80
 05/25/2021   08:19:50   (   0.10,-104.13) (  -0.02,-103.45)   77.08                80
 05/27/2021   20:23:05   (  -0.09,-104.29) (  -0.07,-104.24)    5.25                80