Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 9 1.  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)
 09/03/2015   12:13:18   ( -70.49, 173.66) 09/03/2015   12:12:12  ( -70.49, 173.64)    0.60                66
 09/03/2015   13:02:45   (  70.39, -18.85) 09/03/2015   13:02:56  (  70.37, -18.86)    2.03                11
 09/03/2015   13:52:21   ( -69.95, 148.15) 09/03/2015   13:53:32  ( -69.98, 149.07)   35.00                71
 09/06/2015   04:29:48   ( -70.45, -70.51) 09/06/2015   04:29:03  ( -70.44, -70.50)    1.94                45
 09/06/2015   05:19:15   (  70.35,  96.98) 09/06/2015   05:19:48  (  70.37,  96.92)    3.36                33
 09/08/2015   19:56:34   (  71.23,-121.07) 09/08/2015   19:55:27  (  71.31,-123.48)   86.46                67
 09/08/2015   20:46:17   ( -70.41,  45.31) 09/08/2015   20:45:53  ( -70.39,  45.36)    3.31                24
 09/08/2015   21:35:44   (  70.30,-147.21) 09/08/2015   21:36:38  (  70.32,-147.23)    2.40                54
 09/11/2015   12:13:16   (  70.52,  -6.29) 09/11/2015   12:12:04  (  70.53,  -6.41)    4.67                72
 09/11/2015   13:02:46   ( -70.41, 161.19) 09/11/2015   13:02:45  ( -70.39, 161.13)    3.21                 1
 09/11/2015   13:52:15   (  70.19, -31.49) 09/11/2015   13:53:27  (  70.17, -31.22)   10.30                72
 09/14/2015   04:29:46   (  70.45, 109.50) 09/14/2015   04:28:54  (  70.43, 109.52)    1.99                52
 09/14/2015   05:19:16   ( -70.35, -83.01) 09/14/2015   05:19:36  ( -70.35, -83.02)    0.48                20