Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 5.  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)
 09/05/2017   22:25:31   (  70.19,-159.76) 09/05/2017   22:24:19  (  70.20,-159.85)    3.77                72
 09/05/2017   23:15:01   ( -70.07,   7.71) 09/05/2017   23:15:00  ( -70.06,   7.69)    2.26                 1
 09/06/2017   00:04:30   (  69.86, 175.06) 09/06/2017   00:05:42  (  69.83, 175.33)   10.98                72
 09/08/2017   14:42:00   (  70.14, -43.95) 09/08/2017   14:41:14  (  70.14, -44.00)    1.95                46
 09/08/2017   15:31:30   ( -70.03, 123.53) 09/08/2017   15:31:56  ( -70.05, 123.46)    3.21                26
 09/11/2017   06:08:49   ( -70.96, -94.49) 09/11/2017   06:07:42  ( -71.03, -96.98)   90.78                67
 09/11/2017   06:58:30   (  70.09,  71.86) 09/11/2017   06:58:10  (  70.09,  71.85)    0.40                20
 09/11/2017   07:48:00   ( -69.98,-120.66) 09/11/2017   07:48:52  ( -69.99,-120.68)    1.46                52
 09/13/2017   22:25:33   ( -70.14,  20.17) 09/13/2017   22:24:22  ( -70.14,  20.22)    1.95                71
 09/13/2017   23:15:00   (  70.03,-172.34) 09/13/2017   23:15:06  (  70.03,-172.30)    1.59                 6
 09/14/2017   00:04:33   ( -69.76,  -5.08) 09/14/2017   00:05:45  ( -69.78,  -4.60)   18.74                72
 09/16/2017   14:42:02   ( -70.14, 136.05) 09/16/2017   14:41:19  ( -70.14, 135.99)    2.35                43
 09/16/2017   15:31:29   (  70.02, -56.47) 09/16/2017   15:32:03  (  70.03, -56.53)    2.74                34
 09/19/2017   06:08:52   (  70.66,  85.07) 09/19/2017   06:07:42  (  70.72,  83.52)   57.26                70
 09/19/2017   06:58:31   ( -70.07,-108.16) 09/19/2017   06:58:14  ( -70.09,-108.17)    2.61                17
 09/19/2017   07:47:58   (  69.95,  59.32) 09/19/2017   07:48:58  (  69.98,  59.31)    3.30                60