Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2021   18:33:45   (   0.10, -75.20) (  -0.38, -77.38)  248.41                80
 09/28/2021   18:17:41   (   0.11, -75.20) (   0.63, -72.85)  268.18                80
 09/30/2021   06:39:29   (  -0.10, -75.20) (   0.54, -78.12)  332.60                80
 10/01/2021   06:18:04   (  -0.11, -75.20) (  -0.47, -73.59)  184.04                80
 10/02/2021   18:42:41   (   0.11, -75.22) (  -0.74, -78.89)  418.49                80
 10/03/2021   18:21:17   (   0.11, -75.23) (   0.33, -74.37)   98.78                80
 10/06/2021   06:24:21   (  -0.11, -75.25) (  -0.17, -75.10)   17.08                80
 10/08/2021   18:30:13   (   0.11, -75.28) (  -0.02, -75.87)   67.02                80
 10/09/2021   18:08:48   (   0.11, -75.30) (   0.99, -71.34)  450.73                80