Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2014 4 16.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2014   11:23:57   ( -70.48,-174.15) 04/17/2014   11:23:07  ( -70.50,-174.10)    2.71                50
 04/17/2014   12:13:23   (  70.43,  -6.59) 04/17/2014   12:13:52  (  70.42,  -6.66)    2.98                29
 04/20/2014   02:50:44   (  70.98, 134.85) 04/20/2014   02:49:34  (  71.02, 133.49)   49.52                70
 04/20/2014   03:40:21   ( -70.49, -58.26) 04/20/2014   03:40:07  ( -70.47, -58.28)    2.21                14
 04/20/2014   04:29:48   (  70.37, 109.22) 04/20/2014   04:30:52  (  70.39, 109.15)    3.08                64
 04/22/2014   19:07:16   (  70.51,-109.97) 04/22/2014   19:06:25  (  70.52,-109.92)    2.48                51
 04/22/2014   19:56:45   ( -70.46,  57.59) 04/22/2014   19:57:07  ( -70.44,  57.53)    2.61                22
 04/25/2014   10:34:01   ( -71.21,-160.64) 04/25/2014   10:32:53  ( -71.25,-162.69)   73.53                68
 04/25/2014   11:23:39   (  70.50,   5.91) 04/25/2014   11:23:25  (  70.51,   5.87)    1.64                14
 04/25/2014   12:13:09   ( -70.39, 173.39) 04/25/2014   12:14:06  ( -70.37, 173.41)    2.79                57
 04/28/2014   02:50:34   ( -70.57, -45.73) 04/28/2014   02:49:39  ( -70.57, -45.76)    1.67                55
 04/28/2014   03:40:01   (  70.46, 121.74) 04/28/2014   03:40:23  (  70.44, 121.74)    1.43                22