Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 1 26.  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)
 01/27/2017   14:41:58   (  70.14, -44.01) 01/27/2017   14:41:11  (  70.14, -44.03)    1.09                47
 01/27/2017   15:31:28   ( -70.03, 123.47) 01/27/2017   15:31:52  ( -70.01, 123.49)    2.88                24
 01/30/2017   06:08:44   ( -71.05, -94.40) 01/30/2017   06:07:37  ( -71.10, -97.13)   98.58                67
 01/30/2017   06:58:27   (  70.07,  71.78) 01/30/2017   06:58:04  (  70.09,  71.81)    2.54                23
 01/30/2017   07:47:57   ( -69.97,-120.74) 01/30/2017   07:48:45  ( -69.96,-120.67)    2.76                48
 02/01/2017   22:25:27   ( -70.22,  20.23) 02/01/2017   22:24:14  ( -70.22,  20.07)    5.70                73
 02/01/2017   23:14:55   (  70.05,-172.37) 02/01/2017   23:14:57  (  70.05,-172.35)    0.88                 2
 02/02/2017   00:04:25   ( -69.95,  -4.88) 02/02/2017   00:05:38  ( -69.92,  -4.83)    4.29                73
 02/04/2017   14:41:56   ( -70.15, 136.00) 02/04/2017   14:41:06  ( -70.13, 136.00)    1.77                50
 02/04/2017   15:31:23   (  70.03, -56.52) 02/04/2017   15:31:50  (  70.01, -56.51)    2.29                27
 02/04/2017   16:21:09   ( -69.05, 109.79) 02/04/2017   16:22:15  ( -69.03, 112.23)   97.03                66
 02/07/2017   06:08:39   (  70.98,  85.50) 02/07/2017   06:07:32  (  71.01,  83.03)   89.67                67
 02/07/2017   06:58:23   ( -70.12,-108.16) 02/07/2017   06:57:58  ( -70.09,-108.17)    3.34                25
 02/07/2017   07:47:50   (  70.00,  59.32) 02/07/2017   07:48:42  (  69.97,  59.32)    3.33                52