Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 5 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2021   06:44:16   (  -0.03, -75.22) (   0.94, -79.42)  478.91                80
 05/15/2021   06:22:52   (  -0.03, -75.23) (  -0.10, -74.89)   38.36                80
 05/17/2021   18:28:46   (   0.02, -75.27) (  -0.08, -75.67)   46.20                80
 05/18/2021   18:07:23   (   0.02, -75.28) (   0.96, -71.15)  471.56                80
 05/20/2021   06:31:51   (  -0.02, -75.30) (   0.25, -76.41)  127.25                80
 05/21/2021   06:10:28   (  -0.02, -75.32) (  -0.78, -71.89)  390.81                80
 05/22/2021   18:35:05   (   0.01, -75.35) (  -0.42, -77.19)  210.13                80
 05/23/2021   18:13:41   (   0.01, -75.37) (   0.62, -72.67)  308.22                80
 05/25/2021   06:38:11   (  -0.01, -75.40) (   0.54, -77.95)  289.87                80
 05/26/2021   06:16:46   (  -0.02, -75.42) (  -0.44, -73.41)  228.50                80
 05/27/2021   18:41:24   (   0.01, -75.46) (  -0.70, -78.73)  372.09                80