Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/19/2017   07:36:12   (   0.01, -89.32) (   0.67, -92.33)  342.09                80
 11/20/2017   07:14:47   (   0.02, -89.33) (  -0.31, -87.79)  174.83                80
 11/21/2017   19:36:43   (  -0.01, -89.35) (  -0.87, -93.10)  427.46                80
 11/22/2017   19:20:39   (  -0.01, -89.36) (   0.17, -88.57)   89.73                80
 11/25/2017   07:21:01   (   0.01, -89.36) (   0.02, -89.30)    6.87                80
 11/27/2017   19:24:12   (  -0.00, -89.40) (  -0.15, -90.09)   78.07                80
 11/28/2017   19:08:07   (  -0.00, -89.41) (   0.83, -85.55)  439.60                80
 11/30/2017   07:29:54   (   0.00, -89.42) (   0.34, -90.82)  160.25                80
 12/01/2017   07:08:30   (   0.00, -89.43) (  -0.70, -86.29)  357.32                80