Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 3 12.  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)
 03/18/2016   08:05:19   (  81.02,   5.40) 03/18/2016   08:06:32  (  81.01,   5.54)    2.65                73
 03/18/2016   08:56:18   ( -81.02, 172.64) 03/18/2016   08:57:18  ( -81.02, 172.54)    1.73                60
 03/18/2016   09:47:21   (  81.02, -20.05) 03/18/2016   09:48:02  (  81.01, -19.90)    2.70                41
 03/18/2016   10:38:20   ( -81.02, 147.20) 03/18/2016   10:38:48  ( -81.02, 147.11)    1.76                28
 03/18/2016   11:29:23   (  81.02, -45.49) 03/18/2016   11:29:32  (  81.01, -45.33)    2.78                 9
 03/18/2016   12:20:22   ( -81.02, 121.77) 03/18/2016   12:20:18  ( -81.02, 121.68)    1.82                 4
 03/18/2016   13:11:25   (  81.02, -70.93) 03/18/2016   13:11:02  (  81.01, -70.77)    2.89                23
 03/18/2016   14:02:23   ( -81.02,  96.71) 03/18/2016   14:01:47  ( -81.01,  96.61)    1.81                36
 03/18/2016   14:53:27   (  81.02, -96.38) 03/18/2016   14:52:32  (  81.02, -96.20)    3.03                55