Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2018 5 16.  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   ( -80.57,  88.49) 05/21/2018   15:02:02  ( -80.56,  88.61)    2.65                72
 05/21/2018   15:53:59   (  80.57,-104.20) 05/21/2018   15:52:58  (  80.56,-104.11)    2.34                61
 05/21/2018   16:44:44   ( -80.57,  63.07) 05/21/2018   16:44:03  ( -80.56,  63.17)    2.45                41
 05/21/2018   17:35:29   (  80.58,-129.62) 05/21/2018   17:34:59  (  80.56,-129.55)    2.14                30
 05/21/2018   18:26:14   ( -80.58,  37.65) 05/21/2018   18:26:04  ( -80.56,  37.74)    2.26                10
 05/21/2018   19:16:59   (  80.58,-155.04) 05/21/2018   19:17:00  (  80.56,-154.99)    1.98                 1
 05/21/2018   20:07:44   ( -80.58,  12.23) 05/21/2018   20:08:05  ( -80.57,  12.30)    2.11                21
 05/21/2018   20:58:29   (  80.58, 179.53) 05/21/2018   20:59:01  (  80.57, 179.57)    1.88                32
 05/21/2018   21:49:14   ( -80.58, -13.19) 05/21/2018   21:50:06  ( -80.57, -13.14)    1.98                52