Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 9.  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)
 02/10/2018   06:58:14   ( -70.13,-108.15) 02/10/2018   06:57:32  ( -70.11,-108.12)    2.09                42
 02/10/2018   07:47:41   (  70.02,  59.35) 02/10/2018   07:48:17  (  70.03,  59.30)    2.10                36
 02/12/2018   22:25:04   (  70.69,-159.08) 02/12/2018   22:23:54  (  70.76,-160.69)   59.64                70
 02/12/2018   23:14:43   ( -70.09,   7.67) 02/12/2018   23:14:25  ( -70.10,   7.67)    1.51                18
 02/13/2018   00:04:10   (  69.98, 175.17) 02/13/2018   00:05:09  (  69.97, 175.17)    0.93                59
 02/15/2018   14:41:42   (  70.15, -43.99) 02/15/2018   14:40:36  (  70.17, -43.98)    2.17                66
 02/15/2018   15:31:12   ( -70.04, 123.49) 02/15/2018   15:31:17  ( -70.04, 123.54)    1.94                 5
 02/15/2018   16:20:45   (  69.60, -69.47) 02/15/2018   16:21:55  (  69.60, -68.49)   37.98                70
 02/18/2018   06:58:11   (  70.10,  71.82) 02/18/2018   06:57:28  (  70.12,  71.88)    2.85                43
 02/18/2018   07:47:40   ( -70.05,-120.62) 02/18/2018   07:48:10  ( -70.03,-120.67)    2.92                30
 02/20/2018   22:24:58   ( -70.93,  21.28) 02/20/2018   22:23:50  ( -70.96,  18.99)   83.09                68
 02/20/2018   23:14:38   (  70.11,-172.30) 02/20/2018   23:14:20  (  70.12,-172.34)    1.82                18
 02/21/2018   00:04:08   ( -70.00,  -4.81) 02/21/2018   00:05:01  ( -69.98,  -4.81)    2.83                53
 02/23/2018   14:41:40   ( -70.17, 136.02) 02/23/2018   14:40:28  ( -70.18, 136.04)    1.44                72
 02/23/2018   15:31:07   (  70.05, -56.50) 02/23/2018   15:31:12  (  70.06, -56.48)    1.78                 5
 02/23/2018   16:20:39   ( -69.84, 110.84) 02/23/2018   16:21:51  ( -69.82, 111.21)   14.37                72