Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 1 1.  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)
 01/11/2018   01:18:17   ( -80.68, -67.22) 01/11/2018   01:19:29  ( -80.69, -67.20)    0.95                72
 01/11/2018   02:09:13   (  80.69, 100.23) 01/11/2018   02:10:14  (  80.69, 100.10)    2.32                61
 01/11/2018   03:00:18   ( -80.69, -92.60) 01/11/2018   03:00:59  ( -80.69, -92.62)    0.70                41
 01/11/2018   03:51:14   (  80.69,  74.84) 01/11/2018   03:51:44  (  80.69,  74.68)    2.97                30
 01/11/2018   04:42:19   ( -80.69,-117.99) 01/11/2018   04:42:29  ( -80.70,-118.04)    1.08                10
 01/11/2018   05:33:16   (  80.68,  49.10) 01/11/2018   05:33:14  (  80.70,  49.25)    3.12                 2
 01/11/2018   06:24:20   ( -80.70,-143.37) 01/11/2018   06:23:59  ( -80.70,-143.46)    1.72                21
 01/11/2018   07:15:17   (  80.69,  23.71) 01/11/2018   07:14:44  (  80.70,  23.83)    2.47                33
 01/11/2018   08:06:21   ( -80.70,-168.75) 01/11/2018   08:05:29  ( -80.70,-168.89)    2.42                52