Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 3.  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)
 07/03/2017   22:25:01   (  70.73,-158.95) 07/03/2017   22:23:52  (  70.74,-160.62)   61.47                69
 07/03/2017   23:14:41   ( -70.06,   7.71) 07/03/2017   23:14:23  ( -70.08,   7.74)    2.70                18
 07/04/2017   00:04:08   (  69.96, 175.21) 07/04/2017   00:05:07  (  69.96, 175.24)    1.13                59
 07/06/2017   14:41:41   (  70.15, -43.92) 07/06/2017   14:40:35  (  70.13, -43.88)    2.68                66
 07/06/2017   15:31:11   ( -70.04, 123.56) 07/06/2017   15:31:17  ( -70.05, 123.57)    1.03                 6
 07/06/2017   16:20:44   (  69.61, -69.40) 07/06/2017   16:21:54  (  69.56, -68.39)   39.63                70
 07/09/2017   06:58:11   (  70.12,  71.92) 07/09/2017   06:57:29  (  70.10,  71.94)    2.35                42
 07/09/2017   07:47:41   ( -70.01,-120.60) 07/09/2017   07:48:11  ( -70.01,-120.60)    0.14                30
 07/11/2017   22:25:01   ( -70.91,  21.33) 07/11/2017   22:23:53  ( -70.92,  19.11)   80.77                68
 07/11/2017   23:14:41   (  70.09,-172.24) 07/11/2017   23:14:23  (  70.07,-172.24)    1.62                18
 07/12/2017   00:04:11   ( -69.98,  -4.76) 07/12/2017   00:05:05  ( -69.98,  -4.78)    0.80                54
 07/14/2017   14:41:43   ( -70.16, 136.10) 07/14/2017   14:40:32  ( -70.15, 136.11)    1.37                71
 07/14/2017   15:31:10   (  70.05, -56.41) 07/14/2017   15:31:16  (  70.05, -56.42)    0.53                 6
 07/14/2017   16:20:43   ( -69.79, 110.85) 07/14/2017   16:21:55  ( -69.79, 111.28)   16.80                72
 07/17/2017   06:58:13   ( -70.13,-108.07) 07/17/2017   06:57:26  ( -70.12,-108.07)    0.57                47
 07/17/2017   07:47:40   (  70.01,  59.41) 07/17/2017   07:48:10  (  70.02,  59.39)    1.40                30