Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 8.  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   06:58:15   ( -70.12,-108.16) 02/10/2018   06:57:33  ( -70.12,-108.14)    1.07                42
 02/10/2018   07:47:42   (  70.01,  59.34) 02/10/2018   07:48:17  (  69.99,  59.37)    2.97                35
 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   ( -70.08,   7.66) 02/12/2018   23:14:25  ( -70.11,   7.66)    3.58                18
 02/13/2018   00:04:10   (  69.97, 175.15) 02/13/2018   00:05:09  (  69.98, 175.15)    1.40                59
 02/15/2018   14:41:41   (  70.19, -43.93) 02/15/2018   14:40:36  (  70.18, -44.00)    2.98                65
 02/15/2018   15:31:12   ( -70.03, 123.48) 02/15/2018   15:31:17  ( -70.05, 123.53)    2.63                 5
 02/15/2018   16:20:45   (  69.59, -69.49) 02/15/2018   16:21:55  (  69.61, -68.51)   38.08                70
 02/18/2018   06:58:10   (  70.14,  71.88) 02/18/2018   06:57:28  (  70.13,  71.87)    2.04                42
 02/18/2018   07:47:40   ( -70.04,-120.64) 02/18/2018   07:48:10  ( -70.04,-120.69)    1.98                30
 02/20/2018   22:24:59   ( -70.91,  21.26) 02/20/2018   22:23:51  ( -70.97,  18.98)   83.08                68
 02/20/2018   23:14:39   (  70.09,-172.32) 02/20/2018   23:14:20  (  70.07,-172.27)    2.61                19
 02/21/2018   00:04:09   ( -69.99,  -4.83) 02/21/2018   00:05:02  ( -69.99,  -4.82)    0.28                53