Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 7.  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   22:24:53   ( -70.73,  20.97) 03/08/2018   22:23:44  ( -70.79,  19.28)   61.96                69
 03/08/2018   23:14:30   (  70.08,-172.34) 03/08/2018   23:14:17  (  70.09,-172.29)    2.05                13
 03/09/2018   00:03:59   ( -70.02,  -4.79) 03/09/2018   00:04:59  ( -70.01,  -4.85)    2.81                60
 03/11/2018   14:41:31   ( -70.16, 136.00) 03/11/2018   14:40:29  ( -70.19, 136.01)    3.32                62
 03/11/2018   15:30:58   (  70.05, -56.51) 03/11/2018   15:31:13  (  70.06, -56.49)    1.58                15
 03/11/2018   16:20:36   ( -69.50, 110.37) 03/11/2018   16:21:46  ( -69.50, 111.66)   50.16                70
 03/14/2018   06:57:59   ( -70.13,-108.16) 03/14/2018   06:57:24  ( -70.11,-108.10)    3.05                35
 03/14/2018   07:47:26   (  70.02,  59.33) 03/14/2018   07:48:09  (  70.04,  59.31)    3.03                43
 03/16/2018   22:24:55   (  70.31,-159.66) 03/16/2018   22:23:42  (  70.39,-160.09)   18.61                73
 03/16/2018   23:14:27   ( -70.09,   7.67) 03/16/2018   23:14:20  ( -70.09,   7.70)    1.38                 7
 03/17/2018   00:03:54   (  69.98, 175.15) 03/17/2018   00:05:04  (  69.97, 175.18)    1.40                70
 03/19/2018   14:41:24   (  70.15, -43.99) 03/19/2018   14:40:33  (  70.16, -43.97)    1.35                51
 03/19/2018   15:30:54   ( -70.05, 123.49) 03/19/2018   15:31:15  ( -70.06, 123.50)    1.42                21