Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 10 4.  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, -18.59)    1.22                69
 10/13/2018   23:11:45   (  80.41, 148.65) 10/13/2018   23:12:44  (  80.41, 148.79)    2.45                59
 10/14/2018   00:02:51   ( -80.42, -44.01) 10/14/2018   00:03:29  ( -80.42, -44.00)    0.28                38
 10/14/2018   00:53:45   (  80.43, 123.50) 10/14/2018   00:54:14  (  80.42, 123.38)    3.00                29
 10/14/2018   01:44:52   ( -80.42, -69.50) 10/14/2018   01:44:59  ( -80.42, -69.41)    1.77                 7
 10/14/2018   02:35:46   (  80.43,  98.01) 10/14/2018   02:35:44  (  80.42,  97.96)    1.84                 2
 10/14/2018   03:26:53   ( -80.42, -94.99) 10/14/2018   03:26:29  ( -80.43, -94.82)    3.27                24
 10/14/2018   04:17:47   (  80.43,  72.53) 10/14/2018   04:17:14  (  80.42,  72.55)    1.47                33
 10/14/2018   05:08:53   ( -80.44,-120.14) 10/14/2018   05:07:59  ( -80.43,-120.23)    1.96                54