Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 4 13.  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)
 04/22/2015   15:01:49   (  81.01, -97.26) 04/22/2015   15:02:57  (  81.01, -97.25)    0.26                68
 04/22/2015   15:52:55   ( -81.01,  70.03) 04/22/2015   15:53:42  ( -81.02,  70.01)    0.62                47
 04/22/2015   16:43:51   (  81.01,-122.48) 04/22/2015   16:44:26  (  81.00,-122.34)    2.45                35
 04/22/2015   17:34:57   ( -81.01,  44.81) 04/22/2015   17:35:11  ( -81.00,  44.92)    1.92                14
 04/22/2015   18:25:53   (  81.00,-147.69) 04/22/2015   18:25:56  (  81.00,-147.80)    1.88                 3
 04/22/2015   19:16:59   ( -81.00,  19.59) 04/22/2015   19:16:41  ( -81.01,  19.46)    2.34                18
 04/22/2015   20:07:55   (  81.00,-172.91) 04/22/2015   20:07:25  (  80.99,-172.89)    0.56                30
 04/22/2015   20:59:01   ( -80.99,  -5.63) 04/22/2015   20:58:10  ( -80.99,  -5.63)    0.10                51