Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 9 22.  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, 104.74) 09/30/2018   01:57:39  (  80.29, 108.62)   72.78                65
 09/30/2018   02:47:33   ( -80.41, -85.80) 09/30/2018   02:48:29  ( -80.42, -85.74)    1.39                56
 09/30/2018   03:38:28   (  80.42,  81.60) 09/30/2018   03:39:14  (  80.42,  81.62)    0.47                46
 09/30/2018   04:29:34   ( -80.42,-111.28) 09/30/2018   04:29:59  ( -80.42,-111.13)    2.87                25
 09/30/2018   05:20:29   (  80.42,  56.11) 09/30/2018   05:20:44  (  80.42,  56.22)    1.99                15
 09/30/2018   06:11:34   ( -80.43,-136.43) 09/30/2018   06:11:29  ( -80.43,-136.53)    2.18                 5
 09/30/2018   07:02:29   (  80.44,  30.97) 09/30/2018   07:02:14  (  80.42,  30.82)    3.42                15
 09/30/2018   07:53:35   ( -80.44,-161.91) 09/30/2018   07:52:59  ( -80.43,-161.93)    1.03                36
 09/30/2018   08:44:30   (  80.44,   5.48) 09/30/2018   08:43:44  (  80.42,   5.43)    2.28                46
 09/30/2018   09:35:36   ( -80.44, 172.61) 09/30/2018   09:34:29  ( -80.43, 172.68)    1.56                67