Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2018 5 18.  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,  88.60) 05/21/2018   15:02:02  ( -80.56,  88.71)    2.06                72
 05/21/2018   15:53:59   (  80.56,-104.08) 05/21/2018   15:52:58  (  80.56,-103.99)    1.65                61
 05/21/2018   16:44:44   ( -80.57,  63.18) 05/21/2018   16:44:03  ( -80.56,  63.28)    1.78                41
 05/21/2018   17:35:29   (  80.57,-129.50) 05/21/2018   17:34:59  (  80.57,-129.43)    1.31                30
 05/21/2018   18:26:14   ( -80.57,  37.76) 05/21/2018   18:26:04  ( -80.57,  37.84)    1.50                10
 05/21/2018   19:16:59   (  80.57,-154.92) 05/21/2018   19:17:00  (  80.57,-154.87)    0.97                 1
 05/21/2018   20:07:44   ( -80.57,  12.34) 05/21/2018   20:08:05  ( -80.57,  12.40)    1.24                21
 05/21/2018   20:58:29   (  80.57, 179.66) 05/21/2018   20:59:01  (  80.57, 179.69)    0.66                32
 05/21/2018   21:49:14   ( -80.58, -13.08) 05/21/2018   21:50:06  ( -80.57, -13.03)    0.98                52