Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 1 18.  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)
 01/21/2015   08:24:10   (  80.95,   4.19) 01/21/2015   08:25:10  (  80.94,   4.28)    1.62                60
 01/21/2015   09:15:08   ( -80.95, 171.30) 01/21/2015   09:15:55  ( -80.95, 171.41)    1.91                47
 01/21/2015   10:06:12   (  80.95, -21.31) 01/21/2015   10:06:39  (  80.95, -21.19)    2.15                27
 01/21/2015   10:57:09   ( -80.94, 146.16) 01/21/2015   10:57:23  ( -80.94, 146.30)    2.48                14
 01/21/2015   11:48:14   (  80.94, -46.44) 01/21/2015   11:48:08  (  80.94, -46.29)    2.64                 6
 01/21/2015   12:39:11   ( -80.93, 121.03) 01/21/2015   12:38:52  ( -80.93, 121.20)    3.08                19
 01/21/2015   13:30:16   (  80.93, -71.57) 01/21/2015   13:29:37  (  80.92, -71.40)    3.16                39
 01/21/2015   14:21:13   ( -80.92,  95.89) 01/21/2015   14:20:22  ( -80.93,  95.74)    2.91                51