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)
 01/18/2021   06:16:48   (  -0.01, -75.20) (  -0.40, -73.43)  202.06                80
 01/19/2021   18:38:45   (   0.01, -75.22) (  -0.80, -78.73)  400.70                80
 01/20/2021   18:22:40   (   0.01, -75.23) (   0.22, -74.20)  116.93                80
 01/22/2021   06:44:28   (  -0.00, -75.25) (   0.92, -79.48)  481.55                80
 01/23/2021   06:23:03   (   0.01, -75.26) (  -0.04, -74.94)   36.42                80
 01/25/2021   18:26:15   (  -0.01, -75.30) (  -0.13, -75.71)   48.12                80
 01/26/2021   18:10:10   (  -0.01, -75.31) (   0.89, -71.19)  469.96                80
 01/28/2021   06:31:59   (   0.01, -75.34) (   0.26, -76.46)  128.08                80
 01/29/2021   06:10:34   (   0.01, -75.35) (  -0.77, -71.93)  390.00                80
 01/30/2021   18:32:30   (  -0.01, -75.38) (  -0.41, -77.24)  211.54                80
 01/31/2021   18:16:26   (  -0.01, -75.40) (   0.62, -72.71)  307.17                80