Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2021   06:41:59   (  -0.03, -75.26) (   0.93, -79.49)  482.05                80
 06/16/2021   06:25:56   (  -0.03, -75.27) (  -0.10, -74.96)   35.14                80
 06/18/2021   18:26:30   (   0.03, -75.30) (  -0.08, -75.74)   49.89                80
 06/19/2021   18:10:26   (   0.03, -75.32) (   0.95, -71.22)  467.77                80
 06/21/2021   06:29:36   (  -0.04, -75.33) (   0.22, -76.49)  131.72                80
 06/22/2021   06:13:32   (  -0.04, -75.35) (  -0.81, -71.97)  385.96                80
 06/23/2021   18:32:49   (   0.05, -75.37) (  -0.38, -77.27)  216.20                80
 06/24/2021   18:16:46   (   0.04, -75.39) (   0.65, -72.75)  301.72                80
 06/26/2021   06:35:55   (  -0.05, -75.41) (   0.52, -78.02)  297.12                80
 06/27/2021   06:19:52   (  -0.05, -75.43) (  -0.51, -73.50)  221.25                80
 06/28/2021   18:39:09   (   0.06, -75.47) (  -0.68, -78.80)  379.66                80