Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2021   06:23:02   (   0.01, -75.18) (  -0.06, -74.93)   29.01                80
 01/09/2021   18:26:14   (  -0.00, -75.19) (  -0.14, -75.70)   58.71                80
 01/10/2021   18:10:09   (   0.00, -75.19) (   0.88, -71.17)  457.85                80
 01/12/2021   06:31:58   (  -0.00, -75.19) (   0.27, -76.45)  143.01                80
 01/13/2021   06:10:33   (  -0.00, -75.19) (  -0.74, -71.92)  373.68                80
 01/14/2021   18:32:29   (   0.00, -75.21) (  -0.46, -77.22)  229.29                80
 01/15/2021   18:16:25   (   0.00, -75.22) (   0.56, -72.69)  288.26                80
 01/17/2021   06:38:13   (  -0.00, -75.24) (   0.59, -77.97)  310.54                80
 01/18/2021   06:16:49   (   0.00, -75.25) (  -0.43, -73.44)  207.33                80
 01/19/2021   18:38:45   (  -0.00, -75.28) (  -0.76, -78.74)  394.34                80
 01/20/2021   18:22:41   (  -0.00, -75.30) (   0.26, -74.21)  124.10                80