Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 2 12.  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)
 02/12/2015   18:17:50   (  70.78, -97.16) 02/12/2015   18:16:45  (  70.77, -97.14)    1.70                65
 02/12/2015   19:07:20   ( -70.66,  70.30) 02/12/2015   19:07:27  ( -70.69,  70.31)    2.74                 7
 02/12/2015   19:56:54   (  70.18,-122.77) 02/12/2015   19:58:04  (  70.20,-121.60)   44.19                70
 02/15/2015   10:34:17   (  70.71,  18.62) 02/15/2015   10:33:38  (  70.73,  18.69)    3.33                39
 02/15/2015   11:23:46   ( -70.65,-173.83) 02/15/2015   11:24:20  ( -70.65,-173.86)    0.96                34
 02/18/2015   02:01:07   ( -71.26, -32.28) 02/18/2015   01:59:57  ( -71.33, -33.87)   57.38                70
 02/18/2015   02:50:42   (  70.72, 134.52) 02/18/2015   02:50:31  (  70.70, 134.50)    2.20                11
 02/18/2015   03:40:12   ( -70.61, -58.01) 02/18/2015   03:41:13  ( -70.61, -58.04)    1.14                61
 02/20/2015   18:17:39   ( -70.80,  82.90) 02/20/2015   18:16:39  ( -70.78,  82.82)    3.43                60
 02/20/2015   19:07:06   (  70.69,-109.62) 02/20/2015   19:07:23  (  70.67,-109.69)    3.34                17
 02/20/2015   19:56:46   ( -70.04,  57.05) 02/20/2015   19:57:55  ( -70.06,  58.60)   58.69                69
 02/23/2015   10:34:04   ( -70.75,-161.29) 02/23/2015   10:33:32  ( -70.76,-161.37)    3.16                32
 02/23/2015   11:23:31   (  70.64,   6.19) 02/23/2015   11:24:16  (  70.65,   6.11)    3.44                45
 02/26/2015   02:00:57   (  70.88, 147.18) 02/26/2015   01:59:44  (  70.89, 146.86)   11.60                73
 02/26/2015   02:50:29   ( -70.66, -45.53) 02/26/2015   02:50:24  ( -70.69, -45.49)    3.37                 5
 02/26/2015   03:39:55   (  70.60, 122.03) 02/26/2015   03:41:08  (  70.59, 121.99)    2.53                73