Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 6 8.  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)
 06/14/2015   04:58:59   (  81.03,  52.76) 06/14/2015   04:59:57  (  81.03,  52.93)    3.00                58
 06/14/2015   05:49:55   ( -81.03,-139.97) 06/14/2015   05:50:42  ( -81.03,-139.80)    2.96                47
 06/14/2015   06:41:01   (  81.03,  27.50) 06/14/2015   06:41:27  (  81.03,  27.51)    0.28                26
 06/14/2015   07:31:57   ( -81.03,-165.24) 06/14/2015   07:32:12  ( -81.03,-165.23)    0.47                15
 06/14/2015   08:23:03   (  81.02,   2.24) 06/14/2015   08:22:57  (  81.03,   2.09)    2.67                 6
 06/14/2015   09:13:58   ( -81.02, 169.87) 06/14/2015   09:13:41  ( -81.02, 169.72)    2.70                17
 06/14/2015   10:05:05   (  81.02, -23.03) 06/14/2015   10:04:26  (  81.02, -22.97)    1.13                39
 06/14/2015   10:56:01   ( -81.02, 144.23) 06/14/2015   10:55:11  ( -81.02, 144.30)    1.12                50