Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 4 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)
 04/14/2016   02:03:45   ( -81.01, -84.28) 04/14/2016   02:05:00  ( -81.01, -84.30)    0.42                75
 04/14/2016   02:54:42   (  81.01,  82.87) 04/14/2016   02:55:45  (  81.01,  82.96)    1.63                63
 04/14/2016   03:45:47   ( -81.01,-109.74) 04/14/2016   03:46:30  ( -81.01,-109.70)    0.74                43
 04/14/2016   04:36:43   (  81.01,  57.79) 04/14/2016   04:37:14  (  81.00,  57.92)    2.52                31
 04/14/2016   05:27:49   ( -81.01,-135.19) 04/14/2016   05:28:00  ( -81.01,-135.11)    1.55                11
 04/14/2016   06:18:44   (  81.01,  32.34) 04/14/2016   06:18:44  (  81.02,  32.15)    3.31                 0
 04/14/2016   07:09:50   ( -81.01,-160.64) 04/14/2016   07:09:29  ( -81.01,-160.51)    2.39                21
 04/14/2016   08:00:46   (  81.01,   6.88) 04/14/2016   08:00:14  (  81.02,   6.75)    2.45                32
 04/14/2016   08:51:51   ( -81.01, 174.28) 04/14/2016   08:50:58  ( -81.00, 174.45)    3.19                53