Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 14.  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)
 02/15/2018   14:41:42   (  70.17, -43.97) 02/15/2018   14:40:36  (  70.15, -43.95)    2.06                66
 02/15/2018   15:31:12   ( -70.05, 123.50) 02/15/2018   15:31:18  ( -70.08, 123.48)    2.70                 6
 02/15/2018   16:20:45   (  69.62, -69.45) 02/15/2018   16:21:55  (  69.58, -68.47)   38.54                70
 02/18/2018   06:58:10   (  70.11,  71.83) 02/18/2018   06:57:27  (  70.10,  71.91)    3.65                43
 02/18/2018   07:47:40   ( -70.00,-120.69) 02/18/2018   07:48:09  ( -70.02,-120.65)    2.27                29
 02/20/2018   22:24:58   ( -70.93,  21.27) 02/20/2018   22:23:50  ( -70.95,  19.02)   82.03                68
 02/20/2018   23:14:38   (  70.11,-172.29) 02/20/2018   23:14:20  (  70.09,-172.31)    1.60                18
 02/21/2018   00:04:08   ( -70.00,  -4.81) 02/21/2018   00:05:02  ( -70.01,  -4.87)    2.51                54
 02/23/2018   14:41:40   ( -70.15, 136.01) 02/23/2018   14:40:28  ( -70.16, 136.06)    2.29                72
 02/23/2018   15:31:07   (  70.04, -56.51) 02/23/2018   15:31:12  (  70.04, -56.45)    2.37                 5
 02/23/2018   16:20:39   ( -69.83, 110.83) 02/23/2018   16:21:51  ( -69.80, 111.24)   15.99                72
 02/26/2018   06:58:08   ( -70.14,-108.13) 02/26/2018   06:57:21  ( -70.16,-108.16)    2.35                47
 02/26/2018   07:47:35   (  70.03,  59.35) 02/26/2018   07:48:05  (  70.04,  59.33)    2.26                30