Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 10 13.  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)
 10/13/2018   14:41:43   (  70.15, -43.95) 10/13/2018   14:41:20  (  70.14, -43.91)    2.11                23
 10/13/2018   15:31:13   ( -70.04, 123.53) 10/13/2018   15:32:02  ( -70.06, 123.53)    2.16                49
 10/16/2018   06:08:45   ( -70.31, -95.48) 10/16/2018   06:07:32  ( -70.32, -95.74)    9.81                73
 10/16/2018   06:58:14   (  70.10,  71.86) 10/16/2018   06:58:14  (  70.10,  71.92)    2.49                 0
 10/16/2018   07:47:44   ( -69.99,-120.66) 10/16/2018   07:48:56  ( -70.01,-120.64)    2.63                72
 10/18/2018   22:25:17   ( -70.21,  20.25) 10/18/2018   22:24:25  ( -70.23,  20.17)    3.66                52
 10/18/2018   23:14:44   (  70.10,-172.26) 10/18/2018   23:15:09  (  70.11,-172.33)    2.92                25
 10/19/2018   00:04:29   ( -69.17,  -5.89) 10/19/2018   00:05:35  ( -69.18,  -3.66)   88.48                66
 10/21/2018   14:41:48   ( -70.16, 136.06) 10/21/2018   14:41:18  ( -70.14, 136.08)    2.31                30
 10/21/2018   15:31:15   (  70.05, -56.46) 10/21/2018   15:32:02  (  70.02, -56.43)    3.37                47
 10/24/2018   06:08:46   (  70.32,  84.53) 10/24/2018   06:07:33  (  70.40,  84.12)   18.13                73
 10/24/2018   06:58:18   ( -70.11,-108.14) 10/24/2018   06:58:11  ( -70.11,-108.10)    1.69                 7
 10/24/2018   07:47:45   (  69.99,  59.34) 10/24/2018   07:48:55  (  69.99,  59.39)    1.77                70
 10/26/2018   22:25:18   (  70.20,-159.76) 10/26/2018   22:24:24  (  70.22,-159.82)    2.68                54
 10/26/2018   23:14:48   ( -70.10,   7.73) 10/26/2018   23:15:05  ( -70.07,   7.72)    3.27                17
 10/27/2018   00:04:29   (  69.22, 174.17) 10/27/2018   00:05:35  (  69.21, 176.28)   83.46                66