Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/22/2021   06:44:28   (  -0.01, -75.21) (   0.93, -79.48)  486.76                80
 01/23/2021   06:23:03   (   0.01, -75.20) (  -0.03, -74.94)   30.02                80
 01/25/2021   18:26:15   (  -0.01, -75.20) (  -0.13, -75.71)   58.59                80
 01/26/2021   18:10:10   (  -0.01, -75.20) (   0.89, -71.18)  457.88                80
 01/28/2021   06:31:59   (   0.01, -75.21) (   0.26, -76.46)  142.25                80
 01/29/2021   06:10:33   (   0.00, -75.21) (  -0.70, -71.92)  374.34                80
 01/30/2021   18:32:29   (  -0.00, -75.21) (  -0.48, -77.22)  229.84                80
 01/31/2021   18:16:25   (  -0.00, -75.22) (   0.55, -72.70)  287.38                80
 02/02/2021   06:38:13   (   0.01, -75.24) (   0.61, -77.97)  311.24                80
 02/03/2021   06:16:49   (   0.00, -75.25) (  -0.42, -73.44)  206.04                80
 02/04/2021   18:38:44   (  -0.00, -75.26) (  -0.81, -78.74)  397.52                80