Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 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)
 07/30/2017   14:41:52   ( -70.17, 136.09) 07/30/2017   14:40:42  ( -70.19, 136.04)    3.00                70
 07/30/2017   15:31:19   (  70.07, -56.41) 07/30/2017   15:31:26  (  70.08, -56.49)    3.06                 7
 07/30/2017   16:20:52   ( -69.79, 110.84) 07/30/2017   16:22:04  ( -69.77, 111.30)   17.84                72
 08/02/2017   06:58:23   ( -70.13,-108.09) 08/02/2017   06:57:39  ( -70.15,-108.15)    3.29                44
 08/02/2017   07:47:49   (  70.02,  59.41) 08/02/2017   07:48:21  (  69.99,  59.41)    3.51                32
 08/04/2017   22:25:13   (  70.74,-158.95) 08/04/2017   22:24:04  (  70.80,-160.74)   65.94                69
 08/04/2017   23:14:53   ( -70.08,   7.73) 08/04/2017   23:14:34  ( -70.06,   7.75)    2.53                19
 08/05/2017   00:04:20   (  69.97, 175.22) 08/05/2017   00:05:18  (  69.96, 175.22)    1.65                58
 08/07/2017   14:41:54   (  70.14, -43.95) 08/07/2017   14:40:49  (  70.14, -43.92)    1.25                65
 08/07/2017   15:31:24   ( -70.04, 123.54) 08/07/2017   15:31:31  ( -70.03, 123.56)    1.23                 7
 08/07/2017   16:20:58   (  69.54, -69.51) 08/07/2017   16:22:08  (  69.56, -68.42)   42.14                70
 08/10/2017   06:58:24   (  70.14,  71.93) 08/10/2017   06:57:46  (  70.11,  71.89)    3.27                38
 08/10/2017   07:47:55   ( -69.98,-120.66) 08/10/2017   07:48:28  ( -70.00,-120.63)    1.92                33