Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 2 19.  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)
 02/20/2015   18:17:52   ( -70.78,  82.82) 02/20/2015   18:16:39  ( -70.79,  82.82)    0.71                73
 02/20/2015   19:07:19   (  70.68,-109.69) 02/20/2015   19:07:23  (  70.68,-109.69)    0.41                 4
 02/20/2015   19:56:51   ( -70.46,  57.62) 02/20/2015   19:58:03  ( -70.48,  57.94)   12.31                72
 02/23/2015   10:34:23   ( -70.78,-161.32) 02/23/2015   10:33:32  ( -70.76,-161.38)    2.52                51
 02/23/2015   11:23:50   (  70.67,   6.17) 02/23/2015   11:24:16  (  70.66,   6.11)    2.73                26
 02/23/2015   12:13:36   ( -69.69, 172.39) 02/23/2015   12:14:42  ( -69.72, 174.87)   95.48                66
 02/26/2015   02:50:55   ( -70.72, -45.54) 02/26/2015   02:50:24  ( -70.70, -45.50)    2.63                31
 02/26/2015   03:40:22   (  70.61, 121.94) 02/26/2015   03:41:08  (  70.60, 121.97)    1.82                46
 02/28/2015   18:17:52   (  71.04, -96.82) 02/28/2015   18:16:41  (  71.11, -97.74)   34.33                71
 02/28/2015   19:07:26   ( -70.72,  70.32) 02/28/2015   19:07:17  ( -70.70,  70.27)    3.14                 9
 02/28/2015   19:56:53   (  70.61,-122.20) 02/28/2015   19:58:01  (  70.60,-122.26)    2.46                68
 03/03/2015   10:34:27   (  70.76,  18.62) 03/03/2015   10:33:26  (  70.76,  18.62)    0.30                61
 03/03/2015   11:23:57   ( -70.66,-173.90) 03/03/2015   11:24:08  ( -70.65,-173.88)    1.45                11
 03/03/2015   12:13:34   (  70.00,  -7.22) 03/03/2015   12:14:42  (  70.03,  -5.60)   61.47                68