Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 12 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)
 12/08/2020   18:26:10   (   0.00, -75.17) (  -0.09, -75.66)   55.80                80
 12/09/2020   18:10:04   (   0.00, -75.17) (   0.92, -71.13)  460.65                80
 12/11/2020   06:31:51   (  -0.00, -75.15) (   0.25, -76.39)  140.82                80
 12/12/2020   06:10:25   (  -0.00, -75.15) (  -0.76, -71.86)  375.60                80
 12/13/2020   18:32:20   (   0.00, -75.16) (  -0.42, -77.16)  227.89                80
 12/14/2020   18:16:15   (   0.00, -75.16) (   0.59, -72.63)  288.95                80
 12/16/2020   06:38:00   (   0.00, -75.15) (   0.64, -77.88)  311.47                80
 12/17/2020   06:16:35   (   0.01, -75.16) (  -0.38, -73.35)  205.59                80
 12/18/2020   18:38:30   (  -0.01, -75.17) (  -0.80, -78.65)  396.91                80
 12/19/2020   18:22:25   (  -0.01, -75.18) (   0.22, -74.12)  120.90                80
 12/21/2020   06:44:11   (   0.01, -75.19) (   0.95, -79.38)  477.54                80
 12/22/2020   06:22:45   (   0.01, -75.21) (  -0.07, -74.85)   40.45                80