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, -89.30) (  -0.50, -91.59)  260.20                80
 11/17/2017   19:14:26   (   0.00, -89.30) (   0.53, -87.06)  255.91                80
 11/19/2017   07:36:12   (   0.00, -89.28) (   0.70, -92.32)  346.70                80
 11/20/2017   07:14:47   (   0.00, -89.28) (  -0.34, -87.79)  169.42                80
 11/21/2017   19:36:44   (  -0.01, -89.29) (  -0.84, -93.10)  433.88                80
 11/22/2017   19:20:38   (  -0.01, -89.29) (   0.14, -88.56)   82.60                80
 11/25/2017   07:23:41   (   0.01, -89.28) (  -0.01, -89.31)    3.97                80
 11/27/2017   19:24:12   (  -0.02, -89.30) (  -0.18, -90.08)   89.04                80
 11/28/2017   19:08:06   (  -0.02, -89.30) (   0.80, -85.54)  427.85                80
 11/30/2017   07:29:54   (   0.02, -89.30) (   0.38, -90.81)  173.28                80