Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 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)
 09/23/2021   18:11:24   (   0.11, -75.20) (   0.97, -71.34)  439.37                80
 09/25/2021   06:33:12   (  -0.11, -75.20) (   0.20, -76.61)  161.22                80
 09/26/2021   06:11:48   (  -0.11, -75.20) (  -0.80, -72.08)  355.15                80
 09/27/2021   18:33:45   (   0.11, -75.20) (  -0.36, -77.39)  248.72                80
 09/28/2021   18:17:41   (   0.11, -75.20) (   0.65, -72.86)  267.98                80
 09/30/2021   06:39:29   (  -0.11, -75.21) (   0.52, -78.13)  331.80                80
 10/01/2021   06:18:05   (  -0.12, -75.22) (  -0.48, -73.59)  184.95                80
 10/02/2021   18:42:41   (   0.11, -75.23) (  -0.73, -78.89)  418.24                80
 10/03/2021   18:21:17   (   0.12, -75.23) (   0.34, -74.37)   99.12                80
 10/05/2021   06:45:45   (  -0.11, -75.25) (   0.89, -79.63)  499.27                80
 10/06/2021   06:24:21   (  -0.12, -75.26) (  -0.17, -75.11)   18.37                80