Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/08/2021   06:23:03   (   0.01, -75.18) (  -0.02, -74.94)   26.24                80
 02/10/2021   18:26:14   (  -0.00, -75.18) (  -0.14, -75.72)   62.01                80
 02/11/2021   18:10:10   (  -0.00, -75.18) (   0.89, -71.19)  454.49                80
 02/13/2021   06:31:58   (   0.00, -75.17) (   0.26, -76.47)  146.54                80
 02/14/2021   06:10:33   (   0.00, -75.18) (  -0.71, -71.93)  370.40                80
 02/15/2021   18:32:29   (   0.00, -75.20) (  -0.46, -77.23)  231.94                80
 02/16/2021   18:16:25   (   0.00, -75.21) (   0.57, -72.70)  285.58                80
 02/18/2021   06:38:13   (  -0.00, -75.22) (   0.58, -77.98)  313.91                80
 02/19/2021   06:16:47   (  -0.00, -75.23) (  -0.38, -73.44)  203.62                80
 02/20/2021   18:38:44   (   0.01, -75.25) (  -0.78, -78.75)  398.41                80
 02/21/2021   18:22:39   (   0.01, -75.27) (   0.25, -74.22)  119.42                80