Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 12 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2021   18:34:07   (   0.02, -75.21) (  -0.46, -77.39)  247.81                80
 12/17/2021   18:18:00   (   0.01, -75.21) (   0.51, -72.84)  268.79                80
 12/19/2021   06:37:07   (  -0.01, -75.20) (   0.64, -78.11)  331.65                80
 12/20/2021   06:21:01   (  -0.00, -75.20) (  -0.40, -73.58)  185.03                80
 12/21/2021   18:40:15   (   0.00, -75.20) (  -0.81, -78.88)  419.34                80
 12/22/2021   18:24:09   (   0.00, -75.20) (   0.17, -74.34)   97.71                80
 12/25/2021   06:27:10   (  -0.00, -75.21) (  -0.06, -75.08)   15.83                80
 12/27/2021   18:27:38   (   0.00, -75.22) (  -0.16, -75.83)   70.22                80
 12/28/2021   18:11:32   (   0.00, -75.23) (   0.88, -71.30)  447.66                80