Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 11.  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)
 07/11/2017   22:25:01   ( -70.88,  21.29) 07/11/2017   22:23:53  ( -70.94,  19.07)   81.00                68
 07/11/2017   23:14:41   (  70.07,-172.26) 07/11/2017   23:14:23  (  70.09,-172.26)    1.40                18
 07/12/2017   00:04:11   ( -69.96,  -4.79) 07/12/2017   00:05:04  ( -69.95,  -4.73)    2.64                53
 07/14/2017   14:41:43   ( -70.19, 136.15) 07/14/2017   14:40:33  ( -70.17, 136.08)    3.44                70
 07/14/2017   15:31:11   (  70.04, -56.44) 07/14/2017   15:31:17  (  70.06, -56.44)    2.68                 6
 07/14/2017   16:20:43   ( -69.82, 110.89) 07/14/2017   16:21:55  ( -69.76, 111.33)   18.08                72
 07/17/2017   06:58:12   ( -70.16,-108.03) 07/17/2017   06:57:26  ( -70.14,-108.10)    3.13                46
 07/17/2017   07:47:40   (  69.99,  59.39) 07/17/2017   07:48:09  (  69.98,  59.46)    2.87                29
 07/19/2017   22:24:59   (  70.93,-158.62) 07/19/2017   22:23:52  (  70.95,-160.94)   84.27                67
 07/19/2017   23:14:42   ( -70.11,   7.80) 07/19/2017   23:14:20  ( -70.12,   7.72)    2.97                22
 07/20/2017   00:04:10   (  69.95, 175.20) 07/20/2017   00:05:03  (  69.96, 175.27)    2.69                53
 07/22/2017   14:41:42   (  70.17, -43.88) 07/22/2017   14:40:31  (  70.14, -43.86)    2.82                71
 07/22/2017   15:31:12   ( -70.07, 123.61) 07/22/2017   15:31:13  ( -70.04, 123.61)    3.29                 1
 07/22/2017   16:20:42   (  69.79, -69.14) 07/22/2017   16:21:54  (  69.78, -68.69)   17.29                72
 07/25/2017   06:58:12   (  70.11,  71.93) 07/25/2017   06:57:25  (  70.12,  71.94)    1.21                47
 07/25/2017   07:47:42   ( -70.02,-120.58) 07/25/2017   07:48:07  ( -70.01,-120.57)    0.36                25