Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 6 23.  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)
 06/26/2015   02:50:06   (  71.39, 135.69) 06/26/2015   02:48:59  (  71.43, 133.18)   88.72                67
 06/26/2015   03:39:49   ( -70.57, -57.97) 06/26/2015   03:39:26  ( -70.55, -58.03)    3.31                23
 06/26/2015   04:29:17   (  70.42, 109.45) 06/26/2015   04:30:10  (  70.44, 109.46)    2.41                53
 06/28/2015   19:06:49   (  70.63,-109.64) 06/28/2015   19:05:37  (  70.61,-109.67)    2.05                72
 06/28/2015   19:56:19   ( -70.52,  57.83) 06/28/2015   19:56:19  ( -70.52,  57.80)    1.28                 0
 06/28/2015   20:45:48   (  70.30,-134.84) 06/28/2015   20:47:00  (  70.25,-134.48)   14.68                72
 07/01/2015   11:23:18   (  70.60,   6.21) 07/01/2015   11:22:30  (  70.59,   6.14)    3.47                48
 07/01/2015   12:12:48   ( -70.50, 173.69) 07/01/2015   12:13:12  ( -70.48, 173.61)    2.99                24
 07/04/2015   03:39:47   (  70.51, 121.96) 07/04/2015   03:39:21  (  70.51, 122.02)    2.25                26
 07/04/2015   04:29:17   ( -70.40, -70.56) 07/04/2015   04:30:03  ( -70.41, -70.49)    2.43                46
 07/06/2015   19:06:46   ( -70.73,  70.54) 07/06/2015   19:05:33  ( -70.74,  70.11)   15.90                73
 07/06/2015   19:56:15   (  70.51,-122.15) 07/06/2015   19:56:14  (  70.49,-122.18)    2.08                 1
 07/06/2015   20:45:45   ( -70.41,  45.34) 07/06/2015   20:46:56  ( -70.38,  45.31)    2.74                71