Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 10 13.  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)
 10/13/2018   22:20:50   ( -80.42, -18.52) 10/13/2018   22:21:59  ( -80.42, -18.63)    2.05                69
 10/13/2018   23:11:45   (  80.41, 148.71) 10/13/2018   23:12:44  (  80.41, 148.80)    1.78                59
 10/14/2018   00:02:51   ( -80.42, -44.01) 10/14/2018   00:03:29  ( -80.42, -44.04)    0.77                38
 10/14/2018   00:53:46   (  80.42, 123.22) 10/14/2018   00:54:14  (  80.41, 123.39)    3.16                28
 10/14/2018   01:44:52   ( -80.42, -69.50) 10/14/2018   01:44:59  ( -80.42, -69.45)    1.16                 7
 10/14/2018   02:35:46   (  80.43,  98.07) 10/14/2018   02:35:44  (  80.42,  97.98)    2.65                 2
 10/14/2018   03:26:53   ( -80.42, -94.99) 10/14/2018   03:26:29  ( -80.43, -94.86)    2.55                24
 10/14/2018   04:17:47   (  80.43,  72.58) 10/14/2018   04:17:14  (  80.42,  72.57)    1.83                33
 10/14/2018   05:08:53   ( -80.44,-120.14) 10/14/2018   05:07:59  ( -80.43,-120.27)    2.56                54