Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 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)
 02/10/2018   06:58:14   ( -70.13,-108.14) 02/10/2018   06:57:33  ( -70.15,-108.19)    3.09                41
 02/10/2018   07:47:41   (  70.03,  59.36) 02/10/2018   07:48:17  (  70.03,  59.31)    1.85                36
 02/12/2018   22:25:04   (  70.70,-159.07) 02/12/2018   22:23:54  (  70.75,-160.68)   59.44                70
 02/12/2018   23:14:43   ( -70.09,   7.68) 02/12/2018   23:14:25  ( -70.09,   7.68)    0.08                18
 02/13/2018   00:04:10   (  69.99, 175.18) 02/13/2018   00:05:09  (  69.97, 175.18)    2.03                59
 02/15/2018   14:41:42   (  70.16, -43.98) 02/15/2018   14:40:36  (  70.17, -43.97)    1.25                66
 02/15/2018   15:31:12   ( -70.05, 123.50) 02/15/2018   15:31:17  ( -70.03, 123.55)    2.77                 5
 02/15/2018   16:20:45   (  69.61, -69.47) 02/15/2018   16:21:55  (  69.59, -68.49)   38.13                70
 02/18/2018   06:58:11   (  70.10,  71.82) 02/18/2018   06:57:28  (  70.11,  71.89)    2.68                43
 02/18/2018   07:47:41   ( -70.00,-120.69) 02/18/2018   07:48:10  ( -70.03,-120.66)    2.96                29
 02/20/2018   22:24:58   ( -70.93,  21.28) 02/20/2018   22:23:50  ( -70.96,  19.00)   82.83                68
 02/20/2018   23:14:38   (  70.11,-172.30) 02/20/2018   23:14:20  (  70.11,-172.33)    1.34                18
 02/21/2018   00:04:08   ( -70.01,  -4.80) 02/21/2018   00:05:02  ( -70.02,  -4.88)    3.45                54