Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2021   06:33:13   (  -0.11, -75.19) (   0.18, -76.61)  161.53                80
 09/26/2021   06:11:48   (  -0.11, -75.19) (  -0.82, -72.08)  354.79                80
 09/27/2021   18:33:45   (   0.11, -75.20) (  -0.40, -77.38)  248.72                80
 09/28/2021   18:17:41   (   0.11, -75.20) (   0.67, -72.86)  267.93                80
 09/30/2021   06:39:28   (  -0.11, -75.20) (   0.56, -78.12)  332.40                80
 10/01/2021   06:18:05   (  -0.12, -75.21) (  -0.50, -73.60)  184.30                80
 10/02/2021   18:42:41   (   0.11, -75.22) (  -0.71, -78.89)  418.58                80
 10/03/2021   18:21:17   (   0.12, -75.23) (   0.30, -74.36)   98.70                80
 10/06/2021   06:24:21   (  -0.12, -75.25) (  -0.14, -75.10)   17.35                80
 10/08/2021   18:30:13   (   0.11, -75.29) (   0.01, -75.88)   66.96                80