Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2021   06:38:13   (  -0.01, -75.20) (   0.60, -77.96)  314.99                80
 01/18/2021   06:16:49   (  -0.01, -75.20) (  -0.42, -73.44)  201.92                80
 01/19/2021   18:38:45   (   0.01, -75.22) (  -0.78, -78.74)  400.73                80
 01/20/2021   18:22:40   (   0.02, -75.23) (   0.25, -74.21)  116.90                80
 01/22/2021   06:44:28   (  -0.01, -75.25) (   0.96, -79.47)  481.65                80
 01/23/2021   06:23:03   (   0.01, -75.26) (  -0.06, -74.94)   36.31                80
 01/25/2021   18:26:15   (  -0.01, -75.30) (  -0.11, -75.72)   47.88                80
 01/26/2021   18:10:11   (  -0.01, -75.32) (   0.92, -71.19)  470.13                80
 01/28/2021   06:31:59   (   0.01, -75.34) (   0.23, -76.47)  127.98                80
 01/29/2021   06:10:33   (   0.01, -75.36) (  -0.73, -71.93)  390.15                80
 01/30/2021   18:32:30   (  -0.01, -75.38) (  -0.44, -77.23)  211.31                80