Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 8 25.  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)
 08/26/2015   12:13:16   (  70.46,  -6.38) 08/26/2015   12:12:23  (  70.49,  -6.37)    3.12                53
 08/26/2015   13:02:46   ( -70.35, 161.09) 08/26/2015   13:03:04  ( -70.35, 161.16)    2.86                18
 08/26/2015   13:52:26   (  69.48, -32.49) 08/26/2015   13:53:32  (  69.44, -30.17)   90.82                66
 08/29/2015   04:29:45   (  70.45, 109.49) 08/29/2015   04:29:13  (  70.43, 109.50)    2.74                32
 08/29/2015   05:19:15   ( -70.34, -83.04) 08/29/2015   05:19:55  ( -70.34, -83.05)    0.20                40
 08/31/2015   19:56:40   ( -70.98,  58.52) 08/31/2015   19:55:30  ( -71.01,  57.03)   54.23                70
 08/31/2015   20:46:15   (  70.44,-134.66) 08/31/2015   20:46:05  (  70.42,-134.72)    2.53                10
 08/31/2015   21:35:45   ( -70.33,  32.82) 08/31/2015   21:36:47  ( -70.34,  32.74)    3.13                62
 09/03/2015   12:13:19   ( -70.47, 173.62) 09/03/2015   12:12:12  ( -70.48, 173.66)    2.16                67
 09/03/2015   13:02:46   (  70.36, -18.89) 09/03/2015   13:02:56  (  70.37, -18.85)    2.04                10
 09/03/2015   13:52:21   ( -69.98, 148.20) 09/03/2015   13:53:32  ( -69.97, 149.08)   33.77                71
 09/06/2015   04:29:49   ( -70.44, -70.54) 09/06/2015   04:29:03  ( -70.43, -70.48)    2.16                46
 09/06/2015   05:19:16   (  70.32,  96.94) 09/06/2015   05:19:47  (  70.32,  97.00)    2.26                31
 09/08/2015   19:56:34   (  71.26,-121.01) 09/08/2015   19:55:27  (  71.31,-123.48)   88.33                67