Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 7.  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)
 06/09/2017   22:25:01   ( -70.44,  20.61) 06/09/2017   22:23:49  ( -70.45,  19.82)   29.09                72
 06/09/2017   23:14:33   (  70.07,-172.29) 06/09/2017   23:14:28  (  70.05,-172.25)    2.06                 5
 06/10/2017   00:04:03   ( -69.95,  -4.82) 06/10/2017   00:05:10  ( -69.98,  -4.82)    3.07                67
 06/12/2017   14:41:37   ( -70.12, 136.03) 06/12/2017   14:40:38  ( -70.13, 136.09)    2.64                59
 06/12/2017   15:31:04   (  70.02, -56.47) 06/12/2017   15:31:22  (  70.00, -56.40)    3.50                18
 06/12/2017   16:20:45   ( -69.31, 110.18) 06/12/2017   16:21:53  ( -69.34, 111.88)   66.96                68
 06/15/2017   06:58:06   ( -70.13,-108.08) 06/15/2017   06:57:32  ( -70.13,-108.13)    2.01                34
 06/15/2017   07:47:33   (  70.03,  59.41) 06/15/2017   07:48:16  (  70.01,  59.37)    3.07                43
 06/17/2017   22:25:02   (  70.46,-159.35) 06/17/2017   22:23:51  (  70.53,-160.31)   36.22                71
 06/17/2017   23:14:37   ( -70.08,   7.73) 06/17/2017   23:14:26  ( -70.08,   7.72)    0.64                11
 06/18/2017   00:04:04   (  69.97, 175.22) 06/18/2017   00:05:10  (  69.96, 175.21)    2.03                66
 06/20/2017   14:41:38   (  70.13, -43.95) 06/20/2017   14:40:38  (  70.12, -43.88)    3.37                60
 06/20/2017   15:31:08   ( -70.03, 123.53) 06/20/2017   15:31:20  ( -70.03, 123.57)    1.38                12
 06/20/2017   16:20:45   (  69.37, -69.73) 06/20/2017   16:21:53  (  69.33, -68.09)   64.63                68