Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 1 27.  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)
 01/27/2015   18:17:58   (  70.78, -97.17) 01/27/2015   18:17:07  (  70.78, -97.16)    0.78                51
 01/27/2015   19:07:28   ( -70.67,  70.30) 01/27/2015   19:07:48  ( -70.65,  70.36)    2.94                20
 01/30/2015   10:34:29   (  70.74,  18.64) 01/30/2015   10:33:56  (  70.77,  18.64)    2.94                33
 01/30/2015   11:23:59   ( -70.63,-173.89) 01/30/2015   11:24:37  ( -70.64,-173.83)    2.45                38
 02/02/2015   02:01:21   ( -71.48, -31.97) 02/02/2015   02:00:13  ( -71.50, -34.13)   76.48                68
 02/02/2015   02:51:00   (  70.73, 134.49) 02/02/2015   02:50:44  (  70.71, 134.52)    2.40                16
 02/02/2015   03:40:30   ( -70.62, -58.04) 02/02/2015   03:41:26  ( -70.63, -58.04)    1.29                56
 02/04/2015   18:18:02   ( -70.90,  82.97) 02/04/2015   18:16:50  ( -70.92,  82.64)   12.38                72
 02/04/2015   19:07:31   (  70.69,-109.71) 02/04/2015   19:07:32  (  70.71,-109.69)    2.07                 1
 02/04/2015   19:57:01   ( -70.58,  57.77) 02/04/2015   19:58:13  ( -70.57,  57.84)    2.95                72
 02/07/2015   10:34:36   ( -70.78,-161.34) 02/07/2015   10:33:36  ( -70.76,-161.31)    2.40                60
 02/07/2015   11:24:03   (  70.68,   6.14) 02/07/2015   11:24:20  (  70.66,   6.17)    2.79                17
 02/07/2015   12:13:43   ( -70.03, 172.83) 02/07/2015   12:14:52  ( -70.04, 174.45)   61.56                69
 02/10/2015   02:51:09   ( -70.75, -45.53) 02/10/2015   02:50:25  ( -70.77, -45.53)    1.73                44
 02/10/2015   03:40:36   (  70.64, 121.95) 02/10/2015   03:41:09  (  70.66, 121.95)    1.91                33