Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 8 11.  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)
 08/13/2015   03:40:06   ( -70.89, -57.50) 08/13/2015   03:38:55  ( -70.96, -58.70)   44.39                71
 08/13/2015   04:29:39   (  70.46, 109.50) 08/13/2015   04:29:31  (  70.44, 109.46)    2.81                 8
 08/13/2015   05:19:09   ( -70.35, -83.03) 08/13/2015   05:20:13  ( -70.34, -83.07)    1.55                64
 08/15/2015   19:56:42   ( -70.54,  57.85) 08/15/2015   19:55:38  ( -70.52,  57.80)    2.80                64
 08/15/2015   20:46:09   (  70.44,-134.65) 08/15/2015   20:46:22  (  70.42,-134.73)    3.44                13
 08/15/2015   21:35:46   ( -69.94,  32.27) 08/15/2015   21:36:56  ( -69.90,  33.39)   43.04                70
 08/18/2015   12:13:13   ( -70.51, 173.69) 08/18/2015   12:12:30  ( -70.50, 173.61)    3.05                43
 08/18/2015   13:02:41   (  70.35, -18.91) 08/18/2015   13:03:13  (  70.34, -18.84)    2.59                32
 08/21/2015   03:40:01   (  71.28, 123.13) 08/21/2015   03:38:54  (  71.31, 120.71)   86.45                67
 08/21/2015   04:29:45   ( -70.41, -70.57) 08/21/2015   04:29:21  ( -70.43, -70.51)    2.99                24
 08/21/2015   05:19:12   (  70.30,  96.91) 08/21/2015   05:20:05  (  70.33,  96.96)    3.24                53
 08/23/2015   19:56:45   (  70.52,-122.17) 08/23/2015   19:55:32  (  70.57,-122.27)    6.69                73
 08/23/2015   20:46:15   ( -70.42,  45.32) 08/23/2015   20:46:13  ( -70.42,  45.29)    1.13                 2
 08/23/2015   21:35:43   (  70.25,-147.28) 08/23/2015   21:36:56  (  70.26,-147.16)    4.67                73