Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 11.  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)
 02/12/2018   22:25:03   (  70.74,-159.01) 02/12/2018   22:23:54  (  70.76,-160.70)   62.25                69
 02/12/2018   23:14:43   ( -70.07,   7.65) 02/12/2018   23:14:24  ( -70.06,   7.73)    3.47                19
 02/13/2018   00:04:10   (  69.97, 175.15) 02/13/2018   00:05:09  (  69.98, 175.16)    1.14                59
 02/15/2018   14:41:41   (  70.20, -43.93) 02/15/2018   14:40:36  (  70.18, -43.99)    3.09                65
 02/15/2018   15:31:12   ( -70.03, 123.47) 02/15/2018   15:31:17  ( -70.05, 123.52)    3.05                 5
 02/15/2018   16:20:45   (  69.59, -69.49) 02/15/2018   16:21:55  (  69.61, -68.51)   38.10                70
 02/18/2018   06:58:10   (  70.14,  71.88) 02/18/2018   06:57:28  (  70.12,  71.87)    2.19                42
 02/18/2018   07:47:40   ( -70.04,-120.64) 02/18/2018   07:48:10  ( -70.05,-120.69)    2.07                30
 02/20/2018   22:24:59   ( -70.91,  21.25) 02/20/2018   22:23:51  ( -70.98,  18.97)   82.98                68
 02/20/2018   23:14:39   (  70.09,-172.32) 02/20/2018   23:14:20  (  70.07,-172.27)    2.77                19
 02/21/2018   00:04:09   ( -69.98,  -4.84) 02/21/2018   00:05:02  ( -69.99,  -4.83)    0.61                53
 02/23/2018   14:41:39   ( -70.20, 136.07) 02/23/2018   14:40:28  ( -70.19, 136.02)    2.15                71
 02/23/2018   15:31:06   (  70.08, -56.45) 02/23/2018   15:31:12  (  70.07, -56.49)    2.08                 6
 02/23/2018   16:20:39   ( -69.82, 110.81) 02/23/2018   16:21:51  ( -69.83, 111.19)   14.71                72