Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 8 25.  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)
 08/26/2018   13:51:44   ( -70.97, 149.68) 08/26/2018   13:50:37  ( -71.05, 147.26)   87.91                67
 08/26/2018   14:41:25   (  70.11, -43.97) 08/26/2018   14:41:05  (  70.11, -43.91)    2.20                20
 08/26/2018   15:30:55   ( -70.00, 123.51) 08/26/2018   15:31:47  ( -70.01, 123.56)    2.25                52
 08/29/2018   06:08:28   ( -70.22, -95.57) 08/29/2018   06:07:18  ( -70.22, -95.63)    2.09                70
 08/29/2018   06:57:56   (  70.07,  71.85) 08/29/2018   06:58:01  (  70.07,  71.92)    2.85                 5
 08/29/2018   07:47:28   ( -69.85,-120.83) 08/29/2018   07:48:40  ( -69.80,-120.37)   18.41                72
 08/31/2018   22:24:59   ( -70.18,  20.24) 08/31/2018   22:24:14  ( -70.18,  20.21)    1.22                45
 08/31/2018   23:14:26   (  70.07,-172.27) 08/31/2018   23:14:58  (  70.08,-172.33)    2.50                32
 09/03/2018   13:51:49   (  70.83, -30.54) 09/03/2018   13:50:40  (  70.88, -32.46)   70.38                69
 09/03/2018   14:41:30   ( -70.12, 136.04) 09/03/2018   14:41:10  ( -70.14, 136.04)    1.29                20
 09/03/2018   15:30:57   (  70.01, -56.47) 09/03/2018   15:31:54  (  70.04, -56.50)    3.03                57
 09/06/2018   06:08:29   (  70.22,  84.44) 09/06/2018   06:07:23  (  70.21,  84.38)    2.79                66
 09/06/2018   06:58:00   ( -70.07,-108.15) 09/06/2018   06:58:05  ( -70.10,-108.13)    3.13                 5
 09/06/2018   07:47:32   (  69.68,  58.95) 09/06/2018   07:48:43  (  69.68,  59.80)   32.83                71