Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 4 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)
 04/25/2015   19:06:48   (  70.70,-109.73) 04/25/2015   19:06:03  (  70.71,-109.69)    1.39                45
 04/25/2015   19:56:17   ( -70.64,  57.82) 04/25/2015   19:56:45  ( -70.63,  57.76)    2.69                28
 04/28/2015   11:23:14   (  70.68,   6.12) 04/28/2015   11:22:51  (  70.66,   6.17)    2.76                23
 04/28/2015   12:12:44   ( -70.57, 173.59) 04/28/2015   12:13:33  ( -70.58, 173.62)    1.69                49
 05/01/2015   02:50:12   ( -70.84, -45.39) 05/01/2015   02:48:59  ( -70.89, -45.73)   13.50                73
 05/01/2015   03:39:40   (  70.68, 122.01) 05/01/2015   03:39:41  (  70.67, 121.93)    3.05                 1
 05/01/2015   04:29:11   ( -70.52, -70.61) 05/01/2015   04:30:22  ( -70.54, -70.53)    3.52                71
 05/03/2015   19:06:40   ( -70.71,  70.29) 05/03/2015   19:05:45  ( -70.70,  70.36)    2.68                55
 05/03/2015   19:56:07   (  70.60,-122.23) 05/03/2015   19:56:29  (  70.59,-122.15)    2.95                22
 05/03/2015   20:45:50   ( -69.78,  44.23) 05/03/2015   20:46:57  ( -69.77,  46.43)   84.75                67
 05/06/2015   11:23:05   ( -70.71,-173.83) 05/06/2015   11:22:34  ( -70.68,-173.82)    2.94                31
 05/06/2015   12:12:32   (  70.59,  -6.35) 05/06/2015   12:13:18  (  70.57,  -6.34)    2.57                46
 05/09/2015   02:49:56   (  70.94, 134.79) 05/09/2015   02:48:44  (  70.97, 134.17)   22.66                72
 05/09/2015   03:39:29   ( -70.67, -57.99) 05/09/2015   03:39:22  ( -70.67, -58.02)    1.29                 7
 05/09/2015   04:28:56   (  70.56, 109.49) 05/09/2015   04:30:06  (  70.56, 109.46)    0.93                70