Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2014 3 21.  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)
 03/21/2014   19:57:14   ( -71.04,  58.45) 03/21/2014   19:56:05  ( -71.09,  56.58)   67.71                69
 03/21/2014   20:46:52   (  70.34,-134.96) 03/21/2014   20:46:37  (  70.34,-134.88)    3.01                15
 03/21/2014   21:36:22   ( -70.23,  32.51) 03/21/2014   21:37:19  ( -70.25,  32.58)    3.71                57
 03/24/2014   12:13:51   ( -70.42, 173.39) 03/24/2014   12:12:55  ( -70.43, 173.42)    2.10                56
 03/24/2014   13:03:18   (  70.31, -19.13) 03/24/2014   13:03:39  (  70.32, -19.08)    1.67                21
 03/24/2014   13:53:01   ( -69.48, 147.36) 03/24/2014   13:54:08  ( -69.53, 149.42)   80.31                67
 03/27/2014   03:40:35   (  71.12, 122.71) 03/27/2014   03:39:27  (  71.14, 120.69)   72.96                68
 03/27/2014   04:30:16   ( -70.41, -70.73) 03/27/2014   04:29:57  ( -70.41, -70.79)    2.24                19
 03/27/2014   05:19:43   (  70.30,  96.75) 03/27/2014   05:20:41  (  70.30,  96.70)    1.91                58
 03/29/2014   19:57:12   (  70.43,-122.45) 03/29/2014   19:56:16  (  70.45,-122.42)    3.15                56
 03/29/2014   20:46:41   ( -70.38,  45.10) 03/29/2014   20:46:58  ( -70.35,  45.06)    2.86                17
 03/29/2014   21:36:22   (  69.49,-148.49) 03/29/2014   21:37:28  (  69.50,-146.33)   84.02                66
 04/01/2014   11:23:54   ( -71.29,-172.89) 04/01/2014   11:22:47  ( -71.30,-175.38)   88.98                67
 04/01/2014   12:13:35   (  70.41,  -6.59) 04/01/2014   12:13:16  (  70.41,  -6.58)    0.94                19
 04/01/2014   13:03:05   ( -70.31, 160.89) 04/01/2014   13:03:58  ( -70.30, 160.90)    0.40                53
 04/04/2014   03:40:32   ( -70.49, -58.23) 04/04/2014   03:39:33  ( -70.48, -58.24)    0.91                59
 04/04/2014   04:29:59   (  70.37, 109.24) 04/04/2014   04:30:17  (  70.37, 109.24)    0.04                18