Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2021   06:36:29   (  -0.11, -75.22) (   0.52, -78.10)  328.22                80
 08/14/2021   06:20:24   (  -0.11, -75.20) (  -0.47, -73.57)  185.47                80
 08/15/2021   18:39:41   (   0.12, -75.15) (  -0.72, -78.87)  424.38                80
 08/16/2021   18:23:37   (   0.12, -75.13) (   0.27, -74.34)   89.49                80
 08/19/2021   06:24:02   (  -0.13, -75.09) (  -0.13, -75.09)    0.24                80
 08/21/2021   18:27:15   (   0.14, -75.03) (  -0.06, -75.86)   94.93                80
 08/22/2021   18:11:11   (   0.14, -75.02) (   0.99, -71.34)  419.99                80
 08/24/2021   06:30:19   (  -0.15, -75.01) (   0.20, -76.61)  181.38                80
 08/25/2021   06:14:15   (  -0.15, -75.00) (  -0.79, -72.07)  333.98                80
 08/26/2021   18:33:32   (   0.15, -74.98) (  -0.39, -77.38)  273.33                80