Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 12 12.  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)
 12/13/2016   06:09:01   ( -70.86, -94.69) 12/13/2016   06:07:53  ( -70.93, -96.86)   79.23                68
 12/13/2016   06:58:40   (  70.11,  71.83) 12/13/2016   06:58:23  (  70.10,  71.79)    2.16                17
 12/13/2016   07:48:10   ( -69.99,-120.69) 12/13/2016   07:49:05  ( -69.99,-120.74)    1.80                55
 12/15/2016   22:25:42   ( -70.17,  20.15) 12/15/2016   22:24:33  ( -70.17,  20.14)    0.55                69
 12/15/2016   23:15:09   (  70.06,-172.35) 12/15/2016   23:15:17  (  70.07,-172.40)    1.90                 8
 12/16/2016   00:04:43   ( -69.73,  -5.18) 12/16/2016   00:05:55  ( -69.75,  -4.61)   22.08                72
 12/18/2016   14:42:11   ( -70.12, 135.97) 12/18/2016   14:41:27  ( -70.14, 135.96)    1.93                44
 12/18/2016   15:31:38   (  70.01, -56.54) 12/18/2016   15:32:10  (  69.98, -56.50)    3.10                32
 12/21/2016   06:08:58   (  70.77,  85.18) 12/21/2016   06:07:49  (  70.79,  83.36)   66.73                69
 12/21/2016   06:58:39   ( -70.07,-108.22) 12/21/2016   06:58:19  ( -70.05,-108.15)    3.05                20
 12/21/2016   07:48:06   (  69.95,  59.26) 12/21/2016   07:49:03  (  69.96,  59.31)    1.74                57
 12/23/2016   22:25:37   (  70.16,-159.83) 12/23/2016   22:24:31  (  70.14,-159.82)    2.82                66
 12/23/2016   23:15:07   ( -70.06,   7.65) 12/23/2016   23:15:14  ( -70.08,   7.58)    3.63                 7
 12/24/2016   00:04:40   (  69.62, 174.68) 12/24/2016   00:05:51  (  69.62, 175.58)   35.00                71