Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 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)
 04/04/2021   18:32:18   (   0.04, -75.20) (  -0.41, -77.19)  227.54                80
 04/05/2021   18:16:13   (   0.03, -75.20) (   0.57, -72.66)  289.05                80
 04/07/2021   06:38:00   (  -0.02, -75.19) (   0.59, -77.92)  311.12                80
 04/08/2021   06:16:35   (  -0.02, -75.20) (  -0.40, -73.39)  205.79                80
 04/09/2021   18:38:31   (   0.02, -75.21) (  -0.76, -78.69)  397.08                80
 04/10/2021   18:22:25   (   0.02, -75.22) (   0.23, -74.15)  120.56                80
 04/12/2021   06:44:13   (  -0.02, -75.23) (   0.92, -79.42)  477.79                80
 04/13/2021   06:22:48   (  -0.02, -75.24) (  -0.12, -74.90)   39.96                80
 04/15/2021   18:25:59   (   0.02, -75.27) (  -0.04, -75.67)   44.40                80
 04/16/2021   18:09:54   (   0.02, -75.29) (   0.95, -71.13)  473.91                80