Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 9 23.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/30/2018   01:56:34   (  80.29, 104.79) 09/30/2018   01:57:39  (  80.29, 108.68)   72.94                65
 09/30/2018   02:47:33   ( -80.42, -85.75) 09/30/2018   02:48:29  ( -80.42, -85.68)    1.29                56
 09/30/2018   03:38:28   (  80.42,  81.65) 09/30/2018   03:39:14  (  80.41,  81.68)    1.24                46
 09/30/2018   04:29:34   ( -80.42,-111.23) 09/30/2018   04:29:59  ( -80.42,-111.08)    2.88                25
 09/30/2018   05:20:29   (  80.43,  56.17) 09/30/2018   05:20:44  (  80.42,  56.28)    2.37                15
 09/30/2018   06:11:34   ( -80.44,-136.38) 09/30/2018   06:11:29  ( -80.42,-136.48)    2.49                 5
 09/30/2018   07:02:30   (  80.43,  30.68) 09/30/2018   07:02:15  (  80.44,  30.56)    2.88                15
 09/30/2018   07:53:35   ( -80.44,-161.86) 09/30/2018   07:52:59  ( -80.42,-161.87)    1.68                36
 09/30/2018   08:44:31   (  80.43,   5.19) 09/30/2018   08:43:45  (  80.44,   5.16)    1.99                46
 09/30/2018   09:35:36   ( -80.44, 172.65) 09/30/2018   09:34:29  ( -80.42, 172.73)    2.12                67