Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 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)
 03/14/2018   06:57:59   ( -70.12,-108.18) 03/14/2018   06:57:24  ( -70.12,-108.11)    2.57                35
 03/14/2018   07:47:26   (  70.01,  59.32) 03/14/2018   07:48:08  (  69.99,  59.38)    3.30                42
 03/16/2018   22:24:54   (  70.35,-159.59) 03/16/2018   22:23:42  (  70.39,-160.09)   19.28                72
 03/16/2018   23:14:27   ( -70.08,   7.65) 03/16/2018   23:14:20  ( -70.09,   7.69)    2.19                 7
 03/17/2018   00:03:54   (  69.97, 175.14) 03/17/2018   00:05:04  (  69.97, 175.18)    1.48                70
 03/19/2018   14:41:25   (  70.14, -44.01) 03/19/2018   14:40:34  (  70.16, -43.97)    2.57                51
 03/19/2018   15:30:54   ( -70.09, 123.55) 03/19/2018   15:31:16  ( -70.07, 123.49)    3.36                22
 03/19/2018   16:20:38   (  69.04, -70.22) 03/19/2018   16:21:43  (  69.05, -67.72)   99.48                65
 03/22/2018   06:57:51   (  70.15,  71.88) 03/22/2018   06:57:29  (  70.15,  71.82)    2.42                22
 03/22/2018   07:47:22   ( -69.99,-120.71) 03/22/2018   07:48:10  ( -70.00,-120.64)    2.89                48
 03/24/2018   22:24:52   ( -70.22,  20.21) 03/24/2018   22:23:40  ( -70.19,  20.22)    3.11                72
 03/24/2018   23:14:19   (  70.10,-172.31) 03/24/2018   23:14:24  (  70.08,-172.31)    1.87                 5
 03/25/2018   00:03:51   ( -69.89,  -4.97) 03/25/2018   00:05:04  ( -69.88,  -4.68)   11.16                73