Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2021   06:31:38   (  -0.02, -75.17) (   0.24, -76.37)  136.21                80
 05/05/2021   06:10:14   (  -0.02, -75.17) (  -0.74, -71.84)  379.36                80
 05/06/2021   18:32:12   (   0.01, -75.17) (  -0.42, -77.15)  225.66                80
 05/07/2021   18:16:08   (   0.01, -75.17) (   0.61, -72.63)  290.65                80
 05/09/2021   06:37:57   (  -0.01, -75.18) (   0.60, -77.89)  309.62                80
 05/10/2021   06:16:33   (  -0.01, -75.18) (  -0.43, -73.37)  206.79                80
 05/11/2021   18:38:31   (   0.01, -75.19) (  -0.78, -78.67)  397.50                80
 05/12/2021   18:22:27   (   0.01, -75.19) (   0.25, -74.15)  119.34                80
 05/14/2021   06:44:15   (  -0.01, -75.21) (   0.96, -79.41)  479.95                80
 05/15/2021   06:22:52   (  -0.01, -75.21) (  -0.08, -74.89)   36.85                80
 05/17/2021   18:26:06   (   0.00, -75.23) (  -0.09, -75.67)   49.86                80