Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2019   06:17:31   (   0.01, -75.20) (  -0.37, -73.53)  189.88                80
 01/14/2019   18:42:06   (  -0.02, -75.19) (  -0.84, -78.83)  414.73                80
 01/15/2019   18:20:41   (  -0.01, -75.19) (   0.20, -74.30)  101.77                80
 01/17/2019   06:45:09   (   0.02, -75.20) (   0.99, -79.57)  498.27                80
 01/18/2019   06:23:43   (   0.02, -75.20) (   0.00, -75.03)   18.33                80
 01/20/2019   18:29:34   (  -0.02, -75.20) (  -0.17, -75.80)   69.50                80
 01/21/2019   18:08:10   (  -0.02, -75.20) (   0.88, -71.28)  447.26                80
 01/23/2019   06:32:37   (   0.02, -75.21) (   0.31, -76.55)  152.00                80
 01/24/2019   06:11:11   (   0.02, -75.22) (  -0.68, -72.01)  365.13                80
 01/25/2019   18:35:48   (  -0.02, -75.23) (  -0.46, -77.32)  237.78                80
 01/26/2019   18:14:22   (  -0.02, -75.24) (   0.53, -72.78)  279.94                80