Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 6.  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)
 09/08/2017   14:42:00   (  70.14, -43.95) 09/08/2017   14:41:14  (  70.15, -44.00)    2.16                46
 09/08/2017   15:31:30   ( -70.02, 123.52) 09/08/2017   15:31:55  ( -70.00, 123.53)    2.66                25
 09/11/2017   06:08:49   ( -70.95, -94.50) 09/11/2017   06:07:42  ( -71.04, -96.99)   90.78                67
 09/11/2017   06:58:30   (  70.08,  71.85) 09/11/2017   06:58:10  (  70.09,  71.85)    0.89                20
 09/11/2017   07:48:00   ( -69.97,-120.67) 09/11/2017   07:48:52  ( -70.00,-120.69)    2.72                52
 09/13/2017   22:25:33   ( -70.13,  20.16) 09/13/2017   22:24:22  ( -70.15,  20.21)    3.05                71
 09/13/2017   23:15:00   (  70.02,-172.35) 09/13/2017   23:15:06  (  70.04,-172.30)    2.51                 6
 09/14/2017   00:04:33   ( -69.75,  -5.10) 09/14/2017   00:05:45  ( -69.78,  -4.61)   19.30                72
 09/16/2017   14:42:02   ( -70.12, 136.03) 09/16/2017   14:41:18  ( -70.10, 136.06)    3.10                44
 09/16/2017   15:31:29   (  70.01, -56.49) 09/16/2017   15:32:02  (  69.98, -56.46)    2.99                33
 09/19/2017   06:08:52   (  70.65,  85.05) 09/19/2017   06:07:42  (  70.72,  83.52)   56.83                70
 09/19/2017   06:58:30   ( -70.11,-108.11) 09/19/2017   06:58:14  ( -70.10,-108.17)    2.46                16
 09/19/2017   07:47:57   (  69.99,  59.37) 09/19/2017   07:48:58  (  69.99,  59.30)    2.63                61