Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/27/2017   19:24:12   (  -0.00, -89.30) (  -0.20, -90.07)   88.29                80
 11/28/2017   19:08:07   (  -0.00, -89.31) (   0.85, -85.55)  428.51                80
 11/30/2017   07:29:54   (   0.00, -89.31) (   0.32, -90.82)  172.20                80
 12/01/2017   07:08:29   (   0.00, -89.31) (  -0.66, -86.28)  344.48                80
 12/02/2017   19:30:25   (  -0.00, -89.32) (  -0.50, -91.59)  259.10                80
 12/03/2017   19:14:20   (  -0.00, -89.32) (   0.48, -87.05)  257.70                80
 12/05/2017   07:36:07   (   0.00, -89.32) (   0.69, -92.32)  342.76                80
 12/06/2017   07:14:43   (   0.01, -89.32) (  -0.35, -87.80)  173.95                80
 12/07/2017   19:36:38   (  -0.01, -89.33) (  -0.86, -93.10)  429.52                80
 12/08/2017   19:20:33   (  -0.01, -89.34) (   0.19, -88.57)   87.78                80