Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2021   08:29:26   (   0.15,-104.28) (   0.63,-106.44)  245.94                80
 04/18/2021   08:13:20   (   0.15,-104.28) (  -0.37,-101.90)  271.05                80
 04/19/2021   20:35:17   (  -0.15,-104.31) (  -0.79,-107.21)  330.25                80
 04/20/2021   20:13:51   (  -0.16,-104.29) (   0.20,-102.67)  185.15                80
 04/22/2021   08:35:37   (   0.15,-104.24) (   1.01,-107.93)  420.29                80
 04/23/2021   08:19:33   (   0.16,-104.25) (  -0.05,-103.40)   96.73                80
 04/25/2021   20:20:04   (  -0.16,-104.29) (  -0.11,-104.17)   13.87                80
 04/28/2021   08:23:05   (   0.15,-104.21) (   0.32,-104.89)   77.69                80
 04/29/2021   08:07:00   (   0.16,-104.21) (  -0.73,-100.37)  439.09                80