Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 9.  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   ( -70.87,  21.27) 07/11/2017   22:23:53  ( -70.95,  19.04)   81.43                68
 07/11/2017   23:14:40   (  70.11,-172.21) 07/11/2017   23:14:23  (  70.10,-172.28)    2.86                17
 07/12/2017   00:04:11   ( -69.94,  -4.81) 07/12/2017   00:05:04  ( -69.97,  -4.75)    3.33                53
 07/14/2017   14:41:43   ( -70.18, 136.13) 07/14/2017   14:40:33  ( -70.19, 136.05)    2.96                70
 07/14/2017   15:31:11   (  70.02, -56.46) 07/14/2017   15:31:16  (  70.02, -56.39)    2.85                 5
 07/14/2017   16:20:43   ( -69.80, 110.87) 07/14/2017   16:21:55  ( -69.77, 111.31)   17.10                72
 07/17/2017   06:58:13   ( -70.14,-108.04) 07/17/2017   06:57:27  ( -70.16,-108.12)    3.48                46
 07/17/2017   07:47:41   (  69.98,  59.37) 07/17/2017   07:48:10  (  70.00,  59.43)    3.25                29
 07/19/2017   22:25:00   (  70.92,-158.64) 07/19/2017   22:23:53  (  70.97,-160.97)   84.69                67
 07/19/2017   23:14:42   ( -70.10,   7.78) 07/19/2017   23:14:19  ( -70.08,   7.78)    2.97                23
 07/20/2017   00:04:09   (  69.99, 175.27) 07/20/2017   00:05:03  (  69.97, 175.24)    1.99                54
 07/22/2017   14:41:42   (  70.16, -43.89) 07/22/2017   14:40:31  (  70.16, -43.89)    0.35                71
 07/22/2017   15:31:12   ( -70.06, 123.60) 07/22/2017   15:31:13  ( -70.05, 123.59)    1.24                 1
 07/22/2017   16:20:42   (  69.78, -69.15) 07/22/2017   16:21:54  (  69.79, -68.71)   16.95                72