Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 10 10.  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, -18.46) 10/13/2018   22:21:59  ( -80.42, -18.57)    2.08                69
 10/13/2018   23:11:45   (  80.42, 148.75) 10/13/2018   23:12:44  (  80.41, 148.84)    2.07                59
 10/14/2018   00:02:51   ( -80.42, -43.95) 10/14/2018   00:03:29  ( -80.42, -43.98)    0.64                38
 10/14/2018   00:53:46   (  80.42, 123.26) 10/14/2018   00:54:14  (  80.41, 123.43)    3.31                28
 10/14/2018   01:44:52   ( -80.42, -69.44) 10/14/2018   01:44:59  ( -80.42, -69.39)    0.95                 7
 10/14/2018   02:35:47   (  80.42,  97.77) 10/14/2018   02:35:45  (  80.44,  97.70)    2.53                 2
 10/14/2018   03:26:53   ( -80.42, -94.93) 10/14/2018   03:26:29  ( -80.42, -94.80)    2.40                24
 10/14/2018   04:17:48   (  80.42,  72.28) 10/14/2018   04:17:15  (  80.44,  72.29)    2.35                33
 10/14/2018   05:08:53   ( -80.44,-120.08) 10/14/2018   05:07:59  ( -80.43,-120.21)    2.92                54