Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 8 29.  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)
 08/31/2017   14:42:02   ( -70.11, 136.00) 08/31/2017   14:41:07  ( -70.11, 136.07)    2.59                55
 08/31/2017   15:31:29   (  70.00, -56.51) 08/31/2017   15:31:51  (  70.00, -56.46)    1.92                22
 08/31/2017   16:21:12   ( -69.18, 110.01) 08/31/2017   16:22:19  ( -69.16, 112.08)   82.04                67
 09/03/2017   06:58:32   ( -70.08,-108.17) 09/03/2017   06:58:04  ( -70.10,-108.15)    2.82                28
 09/03/2017   07:47:59   (  69.97,  59.33) 09/03/2017   07:48:48  (  69.99,  59.32)    2.72                49
 09/05/2017   22:25:30   (  70.20,-159.74) 09/05/2017   22:24:18  (  70.20,-159.85)    4.07                72
 09/05/2017   23:15:01   ( -70.04,   7.66) 09/05/2017   23:14:59  ( -70.04,   7.70)    1.48                 2
 09/06/2017   00:04:29   (  69.88, 175.08) 09/06/2017   00:05:41  (  69.83, 175.33)   11.16                72
 09/08/2017   14:42:00   (  70.16, -43.92) 09/08/2017   14:41:14  (  70.14, -44.00)    3.46                46
 09/08/2017   15:31:31   ( -70.00, 123.49) 09/08/2017   15:31:55  ( -69.99, 123.56)    3.04                24
 09/11/2017   06:08:49   ( -70.99, -94.44) 09/11/2017   06:07:42  ( -71.03, -96.98)   92.02                67
 09/11/2017   06:58:30   (  70.11,  71.90) 09/11/2017   06:58:10  (  70.09,  71.85)    3.14                20
 09/11/2017   07:48:01   ( -69.96,-120.69) 09/11/2017   07:48:52  ( -69.99,-120.68)    3.04                51