Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/09/2017   07:23:45   (   0.00, -89.28) (  -0.02, -89.30)    3.75                80
 11/11/2017   19:24:16   (  -0.01, -89.30) (  -0.19, -90.07)   87.79                80
 11/12/2017   19:08:11   (  -0.01, -89.31) (   0.84, -85.54)  429.21                80
 11/14/2017   07:29:59   (   0.01, -89.30) (   0.33, -90.82)  172.09                80
 11/15/2017   07:08:33   (   0.01, -89.31) (  -0.65, -86.28)  345.07                80
 11/16/2017   19:30:29   (  -0.01, -89.34) (  -0.53, -91.58)  256.41                80
 11/17/2017   19:14:25   (  -0.02, -89.35) (   0.51, -87.06)  261.26                80
 11/19/2017   07:36:12   (   0.02, -89.35) (   0.67, -92.33)  338.83                80
 11/20/2017   07:14:47   (   0.02, -89.36) (  -0.31, -87.79)  178.69                80
 11/21/2017   19:36:43   (  -0.03, -89.39) (  -0.86, -93.10)  422.68                80
 11/22/2017   19:20:39   (  -0.03, -89.40) (   0.18, -88.58)   95.26                80