Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2020   18:16:23   (   0.00, -75.22) (   0.56, -72.67)  290.36                80
 01/01/2021   06:38:11   (  -0.00, -75.22) (   0.60, -77.95)  310.17                80
 01/02/2021   06:16:47   (  -0.00, -75.22) (  -0.42, -73.42)  206.42                80
 01/03/2021   18:38:43   (  -0.00, -75.23) (  -0.80, -78.72)  397.28                80
 01/04/2021   18:22:38   (  -0.00, -75.24) (   0.22, -74.19)  119.97                80
 01/06/2021   06:44:27   (   0.00, -75.26) (   0.94, -79.46)  479.04                80
 01/07/2021   06:23:02   (   0.00, -75.27) (  -0.08, -74.93)   38.17                80
 01/09/2021   18:26:14   (   0.00, -75.29) (  -0.11, -75.71)   47.64                80
 01/10/2021   18:10:10   (   0.00, -75.31) (   0.90, -71.18)  470.08                80
 01/12/2021   06:31:58   (  -0.00, -75.33) (   0.25, -76.45)  128.09                80