Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 5 22.  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)
 06/01/2015   00:38:48   (  81.03, 117.94) 06/01/2015   00:39:56  (  81.02, 118.06)    2.12                68
 06/01/2015   01:29:45   ( -81.02, -74.75) 06/01/2015   01:30:41  ( -81.03, -74.72)    0.66                56
 06/01/2015   02:20:50   (  81.02,  92.68) 06/01/2015   02:21:26  (  81.02,  92.64)    0.83                36
 06/01/2015   03:11:47   ( -81.02,-100.01) 06/01/2015   03:12:11  ( -81.03,-100.13)    2.28                24
 06/01/2015   04:02:52   (  81.02,  67.43) 06/01/2015   04:02:55  (  81.01,  67.59)    2.88                 3
 06/01/2015   04:53:49   ( -81.02,-125.27) 06/01/2015   04:53:40  ( -81.01,-125.19)    1.49                 9
 06/01/2015   05:44:54   (  81.01,  42.17) 06/01/2015   05:44:25  (  81.01,  42.17)    0.20                29
 06/01/2015   06:35:51   ( -81.01,-150.53) 06/01/2015   06:35:10  ( -81.02,-150.61)    1.35                41
 06/01/2015   07:26:56   (  81.01,  16.92) 06/01/2015   07:25:55  (  81.01,  16.75)    2.98                61