Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 9 17.  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   01:56:35   (  80.26, 104.37) 09/30/2018   01:57:38  (  80.26, 108.96)   86.33                63
 09/30/2018   02:47:33   ( -80.42, -85.81) 09/30/2018   02:48:29  ( -80.42, -85.68)    2.38                56
 09/30/2018   03:38:28   (  80.42,  81.56) 09/30/2018   03:39:14  (  80.42,  81.64)    1.60                46
 09/30/2018   04:29:33   ( -80.43,-110.96) 09/30/2018   04:29:59  ( -80.42,-111.08)    2.77                26
 09/30/2018   05:20:29   (  80.42,  56.07) 09/30/2018   05:20:44  (  80.42,  56.24)    3.25                15
 09/30/2018   06:11:34   ( -80.43,-136.44) 09/30/2018   06:11:29  ( -80.42,-136.48)    1.62                 5
 09/30/2018   07:02:29   (  80.44,  30.92) 09/30/2018   07:02:14  (  80.42,  30.85)    2.50                15
 09/30/2018   07:53:35   ( -80.44,-161.92) 09/30/2018   07:52:59  ( -80.42,-161.87)    1.66                36
 09/30/2018   08:44:30   (  80.44,   5.43) 09/30/2018   08:43:44  (  80.42,   5.45)    1.98                46
 09/30/2018   09:35:36   ( -80.44, 172.59) 09/30/2018   09:34:29  ( -80.43, 172.73)    2.84                67