Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 9 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)
 09/14/2015   04:29:52   (  70.45, 109.47) 09/14/2015   04:28:54  (  70.45, 109.50)    0.95                58
 09/14/2015   05:19:22   ( -70.34, -83.06) 09/14/2015   05:19:35  ( -70.32, -82.99)    3.20                13
 09/14/2015   06:09:00   (  69.63,  83.59) 09/14/2015   06:10:08  (  69.61,  85.39)   69.92                68
 09/16/2015   20:46:23   (  70.39,-134.73) 09/16/2015   20:45:45  (  70.41,-134.66)    3.25                38
 09/16/2015   21:35:52   ( -70.34,  32.82) 09/16/2015   21:36:27  ( -70.33,  32.78)    1.96                35
 09/19/2015   12:13:14   ( -71.13, 174.64) 09/19/2015   12:12:06  ( -71.22, 172.47)   78.39                68
 09/19/2015   13:02:53   (  70.37, -18.88) 09/19/2015   13:02:36  (  70.37, -18.82)    2.24                17
 09/19/2015   13:52:23   ( -70.27, 148.60) 09/19/2015   13:53:18  ( -70.29, 148.62)    2.60                55
 09/22/2015   04:29:56   ( -70.45, -70.54) 09/22/2015   04:28:43  ( -70.45, -70.48)    2.01                73
 09/22/2015   05:19:23   (  70.34,  96.94) 09/22/2015   05:19:27  (  70.33,  97.01)    2.54                 4
 09/22/2015   06:08:55   ( -70.13, -95.73) 09/22/2015   06:10:07  ( -70.15, -95.38)   13.29                72
 09/24/2015   20:46:24   ( -70.45,  45.35) 09/24/2015   20:45:34  ( -70.47,  45.27)    3.66                50
 09/24/2015   21:35:51   (  70.33,-147.17) 09/24/2015   21:36:18  (  70.35,-147.24)    3.19                27