Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 3 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2021   06:31:53   (  -0.04, -75.22) (   0.21, -76.46)  141.01                80
 03/18/2021   06:10:28   (  -0.05, -75.22) (  -0.77, -71.92)  376.03                80
 03/19/2021   18:32:24   (   0.04, -75.23) (  -0.39, -77.22)  227.22                80
 03/20/2021   18:16:19   (   0.04, -75.24) (   0.59, -72.68)  290.26                80
 03/22/2021   06:38:06   (  -0.03, -75.25) (   0.59, -77.95)  308.18                80
 03/23/2021   06:16:41   (  -0.03, -75.26) (  -0.45, -73.43)  209.28                80
 03/24/2021   18:38:37   (   0.02, -75.27) (  -0.77, -78.72)  393.62                80
 03/25/2021   18:22:32   (   0.02, -75.28) (   0.27, -74.19)  124.41                80
 03/27/2021   06:44:20   (  -0.01, -75.31) (   0.91, -79.46)  472.63                80
 03/28/2021   06:22:54   (  -0.01, -75.33) (  -0.07, -74.92)   45.51                80