Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2019   18:42:07   (  -0.02, -75.20) (  -0.80, -78.84)  414.08                80
 01/15/2019   18:20:41   (  -0.02, -75.20) (   0.18, -74.30)  102.70                80
 01/17/2019   06:45:08   (   0.02, -75.21) (   1.01, -79.57)  496.80                80
 01/18/2019   06:23:44   (   0.02, -75.21) (  -0.03, -75.04)   20.01                80
 01/20/2019   18:29:35   (  -0.02, -75.22) (  -0.13, -75.81)   67.19                80
 01/21/2019   18:08:09   (  -0.02, -75.22) (   0.85, -71.27)  449.91                80
 01/23/2019   06:32:37   (   0.02, -75.24) (   0.33, -76.54)  148.82                80
 01/24/2019   06:11:12   (   0.02, -75.25) (  -0.71, -72.02)  368.59                80
 01/25/2019   18:35:47   (  -0.03, -75.26) (  -0.49, -77.32)  233.96                80
 01/26/2019   18:14:23   (  -0.02, -75.28) (   0.56, -72.79)  284.03                80