Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 3 10.  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)
 03/11/2017   06:58:10   ( -70.16,-108.13) 03/11/2017   06:57:38  ( -70.14,-108.18)    2.82                32
 03/11/2017   07:47:38   (  70.00,  59.30) 03/11/2017   07:48:22  (  70.02,  59.31)    2.22                44
 03/13/2017   22:25:04   (  70.41,-159.52) 03/13/2017   22:23:52  (  70.43,-160.17)   24.58                72
 03/13/2017   23:14:38   ( -70.08,   7.63) 03/13/2017   23:14:29  ( -70.08,   7.69)    2.26                 9
 03/14/2017   00:04:05   (  69.97, 175.13) 03/14/2017   00:05:13  (  69.97, 175.17)    1.77                68
 03/16/2017   14:41:36   (  70.16, -44.01) 03/16/2017   14:40:40  (  70.17, -43.98)    1.56                56
 03/16/2017   15:31:06   ( -70.05, 123.47) 03/16/2017   15:31:22  ( -70.07, 123.49)    2.77                16
 03/16/2017   16:20:46   (  69.22, -70.01) 03/16/2017   16:21:53  (  69.27, -68.03)   78.00                67
 03/19/2017   06:58:04   (  70.12,  71.82) 03/19/2017   06:57:32  (  70.11,  71.89)    2.62                32
 03/19/2017   07:47:34   ( -70.01,-120.70) 03/19/2017   07:48:14  ( -70.01,-120.64)    2.10                40
 03/21/2017   22:24:59   ( -70.51,  20.63) 03/21/2017   22:23:48  ( -70.57,  19.63)   37.84                71
 03/21/2017   23:14:31   (  70.13,-172.28) 03/21/2017   23:14:25  (  70.11,-172.33)    2.65                 6
 03/22/2017   00:04:01   ( -70.02,  -4.80) 03/22/2017   00:05:07  ( -70.00,  -4.86)    3.03                66
 03/24/2017   14:41:31   ( -70.20, 136.05) 03/24/2017   14:40:33  ( -70.20, 135.99)    2.38                58
 03/24/2017   15:30:58   (  70.08, -56.47) 03/24/2017   15:31:16  (  70.06, -56.48)    2.29                18