Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 12 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)
 12/22/2018   06:03:52   (  80.32,  46.68) 12/22/2018   06:04:57  (  80.31,  46.76)    2.13                65
 12/22/2018   06:54:48   ( -80.32,-146.09) 12/22/2018   06:55:42  ( -80.31,-145.95)    2.86                54
 12/22/2018   07:45:53   (  80.32,  21.17) 12/22/2018   07:46:28  (  80.34,  21.03)    3.18                35
 12/22/2018   08:36:48   ( -80.32,-171.60) 12/22/2018   08:37:12  ( -80.34,-171.68)    2.60                24
 12/22/2018   09:27:53   (  80.32,  -4.33) 12/22/2018   09:27:57  (  80.34,  -4.38)    2.24                 4
 12/22/2018   10:18:49   ( -80.32, 162.90) 12/22/2018   10:18:42  ( -80.34, 162.91)    2.48                 7
 12/22/2018   11:09:54   (  80.32, -29.84) 12/22/2018   11:09:27  (  80.34, -29.79)    2.62                27
 12/22/2018   12:00:49   ( -80.34, 137.73) 12/22/2018   12:00:11  ( -80.32, 137.82)    2.86                38
 12/22/2018   12:51:54   (  80.34, -55.02) 12/22/2018   12:50:56  (  80.32, -54.88)    3.37                58