Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 4 29.  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)
 05/01/2015   02:50:13   ( -70.85, -45.39) 05/01/2015   02:49:00  ( -70.90, -45.76)   14.88                73
 05/01/2015   03:39:42   (  70.63, 121.93) 05/01/2015   03:39:41  (  70.63, 122.00)    2.39                 1
 05/01/2015   04:29:11   ( -70.57, -70.52) 05/01/2015   04:30:23  ( -70.55, -70.56)    2.92                72
 05/03/2015   19:06:40   ( -70.73,  70.32) 05/03/2015   19:05:46  ( -70.76,  70.27)    3.18                54
 05/03/2015   19:56:07   (  70.63,-122.19) 05/03/2015   19:56:30  (  70.64,-122.24)    2.33                23
 05/03/2015   20:45:51   ( -69.75,  44.18) 05/03/2015   20:46:57  ( -69.77,  46.42)   86.23                66
 05/06/2015   11:23:06   ( -70.71,-173.83) 05/06/2015   11:22:35  ( -70.72,-173.89)    2.42                31
 05/06/2015   12:12:33   (  70.60,  -6.35) 05/06/2015   12:13:19  (  70.61,  -6.40)    1.99                46
 05/09/2015   02:49:59   (  70.94, 134.77) 05/09/2015   02:48:47  (  71.03, 134.05)   28.14                72
 05/09/2015   03:39:32   ( -70.66, -58.01) 05/09/2015   03:39:24  ( -70.69, -58.05)    3.00                 8
 05/09/2015   04:28:59   (  70.55, 109.47) 05/09/2015   04:30:08  (  70.58, 109.44)    2.88                69
 05/11/2015   19:06:27   (  70.76,-109.62) 05/11/2015   19:05:31  (  70.75,-109.68)    2.62                56
 05/11/2015   19:55:57   ( -70.65,  57.85) 05/11/2015   19:56:13  ( -70.66,  57.78)    3.09                16