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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/16/2017   19:30:30   (   0.00, -89.32) (  -0.48, -91.59)  258.99                80
 11/17/2017   19:14:25   (   0.00, -89.32) (   0.49, -87.05)  257.88                80
 11/19/2017   07:36:12   (   0.00, -89.31) (   0.68, -92.33)  343.74                80
 11/20/2017   07:14:48   (   0.00, -89.31) (  -0.36, -87.80)  173.13                80
 11/21/2017   19:36:43   (  -0.01, -89.34) (  -0.88, -93.09)  428.87                80
 11/22/2017   19:20:39   (  -0.01, -89.34) (   0.16, -88.57)   88.34                80
 11/25/2017   07:21:00   (   0.01, -89.35) (   0.03, -89.30)    5.65                80
 11/27/2017   19:24:12   (  -0.01, -89.38) (  -0.16, -90.08)   79.59                80
 11/28/2017   19:08:07   (  -0.01, -89.40) (   0.82, -85.55)  438.04                80