Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 9 18.  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   (  80.28, 104.60) 09/30/2018   01:57:39  (  80.30, 108.52)   73.53                65
 09/30/2018   02:47:33   ( -80.41, -85.92) 09/30/2018   02:48:29  ( -80.43, -85.81)    2.86                56
 09/30/2018   03:38:28   (  80.41,  81.46) 09/30/2018   03:39:14  (  80.43,  81.51)    1.74                46
 09/30/2018   04:29:33   ( -80.43,-111.06) 09/30/2018   04:29:59  ( -80.43,-111.21)    2.73                26
 09/30/2018   05:20:29   (  80.42,  55.97) 09/30/2018   05:20:44  (  80.43,  56.12)    3.11                15
 09/30/2018   06:11:34   ( -80.43,-136.55) 09/30/2018   06:11:29  ( -80.43,-136.61)    1.16                 5
 09/30/2018   07:02:29   (  80.43,  30.82) 09/30/2018   07:02:14  (  80.43,  30.72)    1.94                15
 09/30/2018   07:53:35   ( -80.43,-162.03) 09/30/2018   07:52:59  ( -80.43,-162.01)    0.63                36
 09/30/2018   08:44:30   (  80.44,   5.33) 09/30/2018   08:43:44  (  80.43,   5.32)    0.38                46
 09/30/2018   09:35:36   ( -80.43, 172.48) 09/30/2018   09:34:29  ( -80.44, 172.60)    2.14                67