Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 7 4.  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)
 07/10/2015   12:48:01   ( -81.03, 115.29) 07/10/2015   12:49:08  ( -81.04, 115.12)    3.01                67
 07/10/2015   13:39:03   (  81.03, -77.25) 07/10/2015   13:39:52  (  81.03, -77.32)    1.21                49
 07/10/2015   14:30:03   ( -81.03,  90.01) 07/10/2015   14:30:37  ( -81.03,  90.06)    0.88                34
 07/10/2015   15:21:05   (  81.03,-102.91) 07/10/2015   15:21:21  (  81.03,-102.75)    2.80                16
 07/10/2015   16:12:04   ( -81.03,  64.73) 07/10/2015   16:12:06  ( -81.03,  64.63)    1.84                 2
 07/10/2015   17:03:06   (  81.03,-127.82) 07/10/2015   17:02:50  (  81.02,-127.81)    0.62                16
 07/10/2015   17:54:07   ( -81.03,  39.08) 07/10/2015   17:53:36  ( -81.03,  39.20)    2.07                31
 07/10/2015   18:45:08   (  81.02,-153.10) 07/10/2015   18:44:20  (  81.02,-153.24)    2.56                48