Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/11/2017   19:24:16   (   0.01, -89.30) (  -0.17, -90.07)   88.13                80
 11/12/2017   19:08:12   (   0.01, -89.31) (   0.86, -85.55)  428.73                80
 11/14/2017   07:29:59   (  -0.01, -89.30) (   0.31, -90.82)  172.62                80
 11/15/2017   07:08:34   (  -0.00, -89.31) (  -0.67, -86.28)  344.54                80
 11/16/2017   19:30:30   (  -0.01, -89.34) (  -0.51, -91.59)  256.64                80
 11/17/2017   19:14:25   (  -0.01, -89.35) (   0.52, -87.06)  260.94                80
 11/19/2017   07:36:12   (   0.02, -89.35) (   0.71, -92.32)  339.34                80
 11/20/2017   07:14:47   (   0.01, -89.36) (  -0.33, -87.79)  178.00                80
 11/21/2017   19:36:43   (  -0.02, -89.39) (  -0.84, -93.10)  423.36                80
 11/22/2017   19:20:39   (  -0.01, -89.40) (   0.20, -88.58)   94.40                80