Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2018 3 11.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2018   20:01:54   ( -80.63,  13.12) 03/13/2018   20:00:39  ( -80.63,  13.10)    0.30                75
 03/13/2018   20:52:39   (  80.62,-179.49) 03/13/2018   20:51:42  (  80.64,-179.41)    2.16                57
 03/13/2018   21:43:24   ( -80.63, -12.29) 03/13/2018   21:42:40  ( -80.63, -12.31)    0.24                44
 03/13/2018   22:34:09   (  80.63, 155.10) 03/13/2018   22:33:43  (  80.64, 155.19)    2.34                26
 03/13/2018   23:24:54   ( -80.63, -37.71) 03/13/2018   23:24:41  ( -80.64, -37.72)    0.24                13
 03/14/2018   00:15:39   (  80.63, 129.68) 03/14/2018   00:15:44  (  80.65, 129.78)    2.51                 5
 03/14/2018   01:06:24   ( -80.64, -63.12) 03/14/2018   01:06:42  ( -80.64, -63.13)    0.29                18
 03/14/2018   01:57:10   (  80.65, 103.93) 03/14/2018   01:57:46  (  80.64, 104.02)    2.64                36
 03/14/2018   02:47:54   ( -80.64, -88.53) 03/14/2018   02:48:43  ( -80.64, -88.55)    0.37                49