Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 10 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/24/2021   18:27:49   (   0.02, -75.21) (  -0.11, -75.89)   77.11                80
 10/25/2021   18:09:05   (   0.03, -75.21) (   0.89, -71.36)  439.20                80
 10/27/2021   06:33:35   (  -0.02, -75.21) (   0.29, -76.64)  161.93                80
 10/28/2021   06:12:12   (  -0.03, -75.22) (  -0.71, -72.11)  354.37                80
 10/29/2021   18:36:50   (   0.02, -75.23) (  -0.48, -77.41)  248.71                80
 10/30/2021   18:15:28   (   0.03, -75.24) (   0.58, -72.90)  268.16                80
 11/01/2021   06:39:57   (  -0.02, -75.26) (   0.65, -78.16)  331.59                80
 11/02/2021   06:18:35   (  -0.02, -75.27) (  -0.41, -73.64)  185.49                80
 11/03/2021   18:43:12   (   0.01, -75.29) (  -0.83, -78.94)  416.67                80
 11/04/2021   18:21:49   (   0.01, -75.30) (   0.23, -74.42)  100.85                80