Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/02/2021   06:16:46   (   0.02, -75.19) (  -0.37, -73.41)  203.62                80
 01/03/2021   18:38:43   (   0.00, -75.19) (  -0.78, -78.72)  402.25                80
 01/04/2021   18:22:39   (   0.01, -75.19) (   0.23, -74.19)  113.44                80
 01/06/2021   06:44:27   (  -0.02, -75.18) (   0.92, -79.47)  487.76                80
 01/07/2021   06:23:03   (  -0.02, -75.18) (  -0.09, -74.94)   28.29                80
 01/09/2021   18:26:13   (  -0.02, -75.18) (  -0.16, -75.69)   59.39                80
 01/10/2021   18:10:09   (  -0.02, -75.18) (   0.86, -71.17)  457.12                80
 01/12/2021   06:31:57   (   0.02, -75.19) (   0.30, -76.44)  143.17                80
 01/13/2021   06:10:33   (   0.01, -75.19) (  -0.72, -71.91)  373.39                80
 01/14/2021   18:32:29   (  -0.01, -75.20) (  -0.48, -77.22)  230.51                80
 01/15/2021   18:16:25   (  -0.01, -75.21) (   0.54, -72.69)  286.83                80