Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 14.  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)
 07/17/2017   06:58:15   ( -70.11,-108.10) 07/17/2017   06:57:26  ( -70.12,-108.07)    1.53                49
 07/17/2017   07:47:42   (  70.01,  59.40) 07/17/2017   07:48:10  (  70.01,  59.41)    0.33                28
 07/19/2017   22:25:01   (  71.02,-158.50) 07/19/2017   22:23:55  (  71.09,-161.17)   96.77                66
 07/19/2017   23:14:46   ( -70.09,   7.75) 07/19/2017   23:14:20  ( -70.10,   7.75)    0.57                26
 07/20/2017   00:04:13   (  69.99, 175.24) 07/20/2017   00:05:04  (  69.99, 175.22)    0.91                51
 07/22/2017   14:41:45   (  70.22, -43.82) 07/22/2017   14:40:32  (  70.23, -43.99)    6.63                73
 07/22/2017   15:31:16   ( -70.07, 123.59) 07/22/2017   15:31:13  ( -70.07, 123.56)    1.29                 3
 07/22/2017   16:20:44   (  69.90, -69.00) 07/22/2017   16:21:56  (  69.92, -68.89)    4.39                72
 07/25/2017   06:58:17   (  70.13,  71.93) 07/25/2017   06:57:25  (  70.15,  71.89)    2.69                52
 07/25/2017   07:47:47   ( -70.04,-120.57) 07/25/2017   07:48:07  ( -70.05,-120.63)    2.53                20
 07/25/2017   08:37:29   (  69.09,  45.79) 07/25/2017   08:38:35  (  69.10,  48.07)   90.14                66
 07/27/2017   23:14:48   (  70.10,-172.24) 07/27/2017   23:14:18  (  70.09,-172.22)    1.39                30
 07/28/2017   00:04:18   ( -70.00,  -4.75) 07/28/2017   00:05:00  ( -69.98,  -4.74)    2.68                42