Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 3 25.  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)
 03/31/2016   17:30:02   (  81.01,-135.92) 03/31/2016   17:31:04  (  81.01,-135.77)    2.74                62
 03/31/2016   18:21:04   ( -81.01,  31.50) 03/31/2016   18:21:49  ( -81.01,  31.62)    2.15                45
 03/31/2016   19:12:03   (  81.01,-160.99) 03/31/2016   19:12:34  (  81.01,-161.17)    3.02                31
 03/31/2016   20:03:06   ( -81.01,   6.06) 03/31/2016   20:03:19  ( -81.01,   6.22)    2.87                13
 03/31/2016   20:54:05   (  81.01, 173.56) 03/31/2016   20:54:04  (  81.01, 173.43)    2.16                 1
 03/31/2016   21:45:07   ( -81.01, -19.01) 03/31/2016   21:44:49  ( -81.01, -19.18)    2.98                18
 03/31/2016   22:36:07   (  81.01, 148.10) 03/31/2016   22:35:34  (  81.01, 148.03)    1.31                33
 03/31/2016   23:27:09   ( -81.01, -44.45) 03/31/2016   23:26:19  ( -81.01, -44.58)    2.23                50