Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2018 5 13.  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)
 05/21/2018   15:03:14   ( -80.56,  88.70) 05/21/2018   15:02:02  ( -80.57,  88.80)    2.06                72
 05/21/2018   15:53:59   (  80.56,-104.01) 05/21/2018   15:52:58  (  80.57,-103.93)    1.66                61
 05/21/2018   16:44:44   ( -80.56,  63.28) 05/21/2018   16:44:03  ( -80.57,  63.36)    1.79                41
 05/21/2018   17:35:29   (  80.56,-129.44) 05/21/2018   17:34:59  (  80.57,-129.37)    1.32                30
 05/21/2018   18:26:14   ( -80.56,  37.86) 05/21/2018   18:26:04  ( -80.57,  37.93)    1.52                10
 05/21/2018   19:16:59   (  80.57,-154.86) 05/21/2018   19:17:00  (  80.57,-154.81)    0.99                 1
 05/21/2018   20:07:44   ( -80.57,  12.44) 05/21/2018   20:08:05  ( -80.57,  12.49)    1.27                21
 05/21/2018   20:58:29   (  80.57, 179.72) 05/21/2018   20:59:01  (  80.57, 179.75)    0.70                32
 05/21/2018   21:49:14   ( -80.57, -12.98) 05/21/2018   21:50:06  ( -80.58, -12.95)    1.04                52