Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 7 18.  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)
 07/20/2015   03:40:04   (  70.54, 121.97) 07/20/2015   03:39:10  (  70.56, 121.95)    2.15                54
 07/20/2015   04:29:34   ( -70.43, -70.56) 07/20/2015   04:29:52  ( -70.46, -70.57)    3.24                18
 07/20/2015   05:19:15   (  69.56,  95.85) 07/20/2015   05:20:21  (  69.56,  98.09)   86.83                66
 07/22/2015   19:56:34   (  70.48,-122.24) 07/22/2015   19:56:01  (  70.51,-122.20)    3.28                33
 07/22/2015   20:46:03   ( -70.42,  45.31) 07/22/2015   20:46:43  ( -70.40,  45.29)    2.77                40
 07/25/2015   11:23:29   ( -71.00,-173.20) 07/25/2015   11:22:19  ( -71.07,-174.66)   53.02                70
 07/25/2015   12:13:04   (  70.46,  -6.38) 07/25/2015   12:12:53  (  70.45,  -6.34)    1.76                11
 07/25/2015   13:02:34   ( -70.35, 161.09) 07/25/2015   13:03:35  ( -70.34, 161.15)    2.30                61
 07/28/2015   03:40:07   ( -70.54, -58.02) 07/28/2015   03:39:02  ( -70.55, -58.03)    0.29                65
 07/28/2015   04:29:34   (  70.44, 109.46) 07/28/2015   04:29:46  (  70.46, 109.42)    2.73                12
 07/28/2015   05:19:11   ( -69.95, -83.61) 07/28/2015   05:20:21  ( -69.98, -82.52)   41.74                70
 07/30/2015   19:56:37   ( -70.51,  57.81) 07/30/2015   19:55:54  ( -70.50,  57.82)    1.67                43
 07/30/2015   20:46:04   (  70.40,-134.71) 07/30/2015   20:46:38  (  70.41,-134.73)    1.36                34