Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 9 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)
 09/11/2018   13:51:52   ( -70.83, 149.45) 09/11/2018   13:50:43  ( -70.91, 147.48)   72.19                69
 09/11/2018   14:41:30   (  70.13, -43.95) 09/11/2018   14:41:14  (  70.12, -43.95)    0.99                16
 09/11/2018   15:31:00   ( -70.02, 123.53) 09/11/2018   15:31:56  ( -70.02, 123.52)    0.44                56
 09/14/2018   06:08:33   ( -70.22, -95.58) 09/14/2018   06:07:26  ( -70.19, -95.60)    2.86                67
 09/14/2018   06:58:00   (  70.11,  71.91) 09/14/2018   06:58:10  (  70.09,  71.87)    3.20                10
 09/14/2018   07:47:36   ( -69.68,-121.07) 09/14/2018   07:48:47  ( -69.72,-120.26)   31.33                71
 09/16/2018   22:25:04   ( -70.15,  20.20) 09/16/2018   22:24:22  ( -70.16,  20.21)    1.62                42
 09/16/2018   23:14:31   (  70.04,-172.31) 09/16/2018   23:15:06  (  70.06,-172.32)    2.23                35
 09/19/2018   13:51:55   (  70.73, -30.70) 09/19/2018   13:50:46  (  70.77, -32.30)   58.75                69
 09/19/2018   14:41:34   ( -70.13, 136.06) 09/19/2018   14:41:18  ( -70.14, 136.02)    1.27                16
 09/19/2018   15:31:01   (  70.02, -56.46) 09/19/2018   15:32:02  (  70.03, -56.51)    2.49                61
 09/22/2018   06:08:33   (  70.21,  84.41) 09/22/2018   06:07:31  (  70.22,  84.35)    2.46                62
 09/22/2018   06:58:03   ( -70.11,-108.09) 09/22/2018   06:58:13  ( -70.11,-108.17)    2.73                10
 09/22/2018   07:47:39   (  69.50,  58.70) 09/22/2018   07:48:48  (  69.53,  60.01)   50.89                69