Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2021   06:31:57   (  -0.00, -75.18) (   0.28, -76.44)  144.00                80
 01/13/2021   06:10:33   (   0.00, -75.18) (  -0.74, -71.91)  372.61                80
 01/14/2021   18:32:29   (  -0.01, -75.20) (  -0.47, -77.22)  230.21                80
 01/15/2021   18:16:25   (  -0.01, -75.21) (   0.55, -72.69)  287.13                80
 01/17/2021   06:38:13   (   0.01, -75.22) (   0.60, -77.96)  312.35                80
 01/18/2021   06:16:49   (   0.01, -75.23) (  -0.42, -73.44)  205.30                80
 01/19/2021   18:38:45   (  -0.01, -75.26) (  -0.78, -78.74)  396.28                80
 01/20/2021   18:22:40   (  -0.01, -75.28) (   0.24, -74.21)  121.93                80
 01/22/2021   06:44:28   (   0.01, -75.30) (   0.97, -79.47)  476.08                80
 01/23/2021   06:23:03   (   0.01, -75.32) (  -0.05, -74.94)   42.17                80