Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 8.  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   14:42:01   (  70.11, -43.99) 09/08/2017   14:41:14  (  70.11, -43.96)    1.21                47
 09/08/2017   15:31:31   ( -70.00, 123.48) 09/08/2017   15:31:56  ( -70.02, 123.50)    2.74                25
 09/11/2017   06:08:49   ( -70.97, -94.46) 09/11/2017   06:07:42  ( -71.01, -96.95)   90.00                67
 09/11/2017   06:58:30   (  70.11,  71.89) 09/11/2017   06:58:11  (  70.11,  71.81)    2.85                19
 09/11/2017   07:48:00   ( -70.00,-120.64) 09/11/2017   07:48:52  ( -69.97,-120.65)    3.44                52
 09/13/2017   22:25:32   ( -70.15,  20.18) 09/13/2017   22:24:22  ( -70.17,  20.17)    3.01                70
 09/13/2017   23:14:59   (  70.04,-172.33) 09/13/2017   23:15:06  (  70.06,-172.34)    2.23                 7
 09/14/2017   00:04:32   ( -69.77,  -5.07) 09/14/2017   00:05:44  ( -69.76,  -4.57)   19.57                72
 09/16/2017   14:42:01   ( -70.13, 136.04) 09/16/2017   14:41:18  ( -70.13, 136.02)    0.84                43
 09/16/2017   15:31:28   (  70.02, -56.47) 09/16/2017   15:32:02  (  70.01, -56.50)    1.29                34
 09/19/2017   06:08:52   (  70.64,  85.04) 09/19/2017   06:07:42  (  70.70,  83.55)   55.21                70
 09/19/2017   06:58:30   ( -70.10,-108.12) 09/19/2017   06:58:14  ( -70.08,-108.14)    2.55                16
 09/19/2017   07:47:57   (  69.99,  59.37) 09/19/2017   07:48:58  (  69.97,  59.33)    2.63                61
 09/21/2017   22:25:29   (  70.16,-159.78) 09/21/2017   22:24:28  (  70.13,-159.78)    3.52                61
 09/21/2017   23:14:59   ( -70.06,   7.71) 09/21/2017   23:15:10  ( -70.04,   7.69)    3.12                11
 09/22/2017   00:04:36   (  69.40, 174.44) 09/22/2017   00:05:44  (  69.39, 175.94)   58.85                68