Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 5 10.  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)
 05/11/2015   19:06:32   (  70.72,-109.68) 05/11/2015   19:05:54  (  70.70,-109.71)    2.91                38
 05/11/2015   19:56:02   ( -70.61,  57.78) 05/11/2015   19:56:36  ( -70.62,  57.73)    2.69                34
 05/14/2015   10:33:25   ( -71.34,-160.50) 05/14/2015   10:32:16  ( -71.39,-162.42)   68.49                69
 05/14/2015   11:23:02   (  70.70,   6.15) 05/14/2015   11:22:49  (  70.69,   6.07)    3.12                13
 05/14/2015   12:12:32   ( -70.58, 173.61) 05/14/2015   12:13:30  ( -70.56, 173.60)    2.85                58
 05/17/2015   02:50:07   ( -70.75, -45.56) 05/17/2015   02:48:59  ( -70.76, -45.59)    1.45                68
 05/17/2015   03:39:34   (  70.65, 121.94) 05/17/2015   03:39:43  (  70.63, 121.92)    1.75                 9
 05/17/2015   04:29:09   ( -70.27, -70.99) 05/17/2015   04:30:20  ( -70.29, -70.22)   29.22                71
 05/19/2015   19:06:39   ( -70.73,  70.27) 05/19/2015   19:05:52  ( -70.71,  70.26)    2.99                47
 05/19/2015   19:56:07   (  70.58,-122.32) 05/19/2015   19:56:36  (  70.59,-122.24)    3.08                29
 05/22/2015   11:23:14   ( -70.69,-173.94) 05/22/2015   11:22:47  ( -70.72,-174.00)    3.23                27
 05/22/2015   12:12:41   (  70.59,  -6.45) 05/22/2015   12:13:31  (  70.60,  -6.50)    1.97                50