Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/15/2017   07:08:34   (   0.00, -89.33) (  -0.68, -86.28)  347.50                80
 11/16/2017   19:30:30   (  -0.00, -89.37) (  -0.51, -91.59)  252.70                80
 11/17/2017   19:14:26   (  -0.00, -89.39) (   0.53, -87.06)  265.43                80
 11/19/2017   07:36:13   (   0.00, -89.39) (   0.64, -92.33)  334.54                80
 11/20/2017   07:14:47   (   0.00, -89.41) (  -0.34, -87.80)  183.47                80
 11/21/2017   19:36:44   (   0.00, -89.45) (  -0.84, -93.10)  416.70                80
 11/22/2017   19:20:39   (   0.00, -89.47) (   0.20, -88.58)  101.61                80
 11/24/2017   07:42:26   (  -0.01, -89.48) (   0.98, -93.85)  497.62                80
 11/25/2017   07:21:02   (  -0.01, -89.50) (  -0.06, -89.32)   20.64                80
 11/27/2017   19:24:13   (   0.01, -89.57) (  -0.13, -90.09)   60.59                80