Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/13/2021   06:31:58   (  -0.00, -75.16) (   0.27, -76.46)  148.05                80
 02/14/2021   06:10:34   (  -0.01, -75.16) (  -0.76, -71.94)  368.39                80
 02/15/2021   18:32:29   (   0.01, -75.17) (  -0.48, -77.23)  234.71                80
 02/16/2021   18:16:24   (   0.01, -75.18) (   0.55, -72.70)  282.37                80
 02/18/2021   06:38:13   (  -0.01, -75.19) (   0.60, -77.98)  317.52                80
 02/19/2021   06:16:47   (  -0.00, -75.19) (  -0.37, -73.44)  199.67                80
 02/20/2021   18:38:44   (  -0.00, -75.21) (  -0.80, -78.74)  402.82                80
 02/21/2021   18:22:39   (  -0.01, -75.22) (   0.23, -74.21)  114.68                80
 02/23/2021   06:44:26   (   0.00, -75.23) (   0.98, -79.48)  484.52                80
 02/24/2021   06:23:02   (  -0.00, -75.24) (  -0.05, -74.95)   32.89                80