Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 8 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)
 08/10/2018   13:51:35   ( -71.05, 149.79) 08/10/2018   13:50:28  ( -71.11, 147.18)   94.47                67
 08/10/2018   14:41:17   (  70.13, -43.93) 08/10/2018   14:40:55  (  70.11, -43.89)    3.02                22
 08/10/2018   15:30:47   ( -70.02, 123.54) 08/10/2018   15:31:37  ( -70.01, 123.57)    1.52                50
 08/13/2018   06:08:21   ( -70.21, -95.59) 08/13/2018   06:07:08  ( -70.22, -95.60)    1.11                73
 08/13/2018   06:57:48   (  70.10,  71.91) 08/13/2018   06:57:52  (  70.11,  71.88)    1.20                 4
 08/13/2018   07:47:19   ( -69.94,-120.69) 08/13/2018   07:48:32  ( -69.90,-120.49)    8.68                73
 08/15/2018   22:24:52   ( -70.18,  20.25) 08/15/2018   22:24:04  ( -70.16,  20.26)    2.16                48
 08/15/2018   23:14:19   (  70.07,-172.26) 08/15/2018   23:14:48  (  70.06,-172.28)    2.07                29
 08/18/2018   13:51:40   (  70.96, -30.33) 08/18/2018   13:50:33  (  71.00, -32.66)   84.41                67
 08/18/2018   14:41:22   ( -70.15, 136.08) 08/18/2018   14:41:00  ( -70.16, 136.02)    2.45                22
 08/18/2018   15:30:50   (  69.99, -56.50) 08/18/2018   15:31:43  (  70.01, -56.43)    3.54                53
 08/21/2018   06:08:23   (  70.22,  84.43) 08/21/2018   06:07:14  (  70.22,  84.38)    1.72                69
 08/21/2018   06:57:53   ( -70.12,-108.09) 08/21/2018   06:57:56  ( -70.11,-108.13)    1.91                 3
 08/21/2018   07:47:24   (  69.78,  59.09) 08/21/2018   07:48:35  (  69.75,  59.72)   24.69                71