Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 9 26.  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)
 09/27/2018   13:51:59   ( -70.78, 149.36) 09/27/2018   13:50:50  ( -70.88, 147.51)   68.46                69
 09/27/2018   14:41:36   (  70.13, -43.95) 09/27/2018   14:41:22  (  70.14, -43.98)    1.32                14
 09/27/2018   15:31:06   ( -70.02, 123.53) 09/27/2018   15:32:03  ( -69.99, 123.55)    3.35                57
 09/30/2018   06:08:40   ( -70.21, -95.61) 09/30/2018   06:07:33  ( -70.18, -95.59)    3.13                67
 09/30/2018   06:58:07   (  70.10,  71.88) 09/30/2018   06:58:18  (  70.12,  71.81)    3.12                11
 09/30/2018   07:47:43   ( -69.67,-121.09) 09/30/2018   07:48:53  ( -69.66,-120.18)   35.39                70
 10/02/2018   22:25:11   ( -70.18,  20.22) 10/02/2018   22:24:29  ( -70.16,  20.21)    1.65                42
 10/02/2018   23:14:38   (  70.07,-172.29) 10/02/2018   23:15:13  (  70.05,-172.31)    2.25                35
 10/05/2018   13:52:02   (  70.73, -30.71) 10/05/2018   13:50:53  (  70.82, -32.39)   62.31                69
 10/05/2018   14:41:41   ( -70.14, 136.05) 10/05/2018   14:41:24  ( -70.15, 136.00)    1.89                17
 10/05/2018   15:31:08   (  70.03, -56.47) 10/05/2018   15:32:08  (  70.03, -56.52)    1.98                60
 10/08/2018   06:08:42   (  70.20,  84.37) 10/08/2018   06:07:37  (  70.17,  84.41)    2.81                65
 10/08/2018   06:58:12   ( -70.10,-108.13) 10/08/2018   06:58:19  ( -70.08,-108.12)    2.11                 7
 10/08/2018   07:47:46   (  69.60,  58.81) 10/08/2018   07:48:56  (  69.60,  59.91)   42.37                70