Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 6.  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)
 03/08/2018   22:24:54   ( -70.73,  20.96) 03/08/2018   22:23:45  ( -70.79,  19.28)   61.98                69
 03/08/2018   23:14:31   (  70.08,-172.35) 03/08/2018   23:14:18  (  70.09,-172.29)    2.27                13
 03/09/2018   00:03:59   ( -70.02,  -4.79) 03/09/2018   00:04:59  ( -70.01,  -4.85)    2.63                60
 03/11/2018   14:41:30   ( -70.21, 136.08) 03/11/2018   14:40:29  ( -70.19, 136.01)    3.52                61
 03/11/2018   15:30:58   (  70.05, -56.51) 03/11/2018   15:31:13  (  70.07, -56.49)    2.06                15
 03/11/2018   16:20:36   ( -69.50, 110.37) 03/11/2018   16:21:46  ( -69.51, 111.66)   50.19                70
 03/14/2018   06:57:59   ( -70.12,-108.16) 03/14/2018   06:57:24  ( -70.11,-108.10)    2.92                35
 03/14/2018   07:47:26   (  70.01,  59.32) 03/14/2018   07:48:08  (  69.99,  59.39)    3.45                42
 03/16/2018   22:24:55   (  70.30,-159.66) 03/16/2018   22:23:42  (  70.39,-160.09)   18.83                73
 03/16/2018   23:14:27   ( -70.09,   7.67) 03/16/2018   23:14:20  ( -70.09,   7.70)    1.34                 7
 03/17/2018   00:03:54   (  69.97, 175.15) 03/17/2018   00:05:04  (  69.97, 175.18)    1.23                70
 03/19/2018   14:41:25   (  70.15, -44.00) 03/19/2018   14:40:34  (  70.16, -43.97)    1.61                51
 03/19/2018   15:30:54   ( -70.05, 123.49) 03/19/2018   15:31:15  ( -70.06, 123.50)    1.58                21