Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 10 29.  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)
 10/29/2015   13:03:04   ( -70.40, 161.12) 10/29/2015   13:02:10  ( -70.42, 161.09)    2.24                54
 10/29/2015   13:52:31   (  70.30, -31.37) 10/29/2015   13:52:54  (  70.30, -31.42)    1.78                23
 10/29/2015   14:42:15   ( -69.42, 135.03) 10/29/2015   14:43:21  ( -69.42, 137.21)   85.26                66
 11/01/2015   05:19:33   ( -70.38, -83.03) 11/01/2015   05:19:01  ( -70.36, -83.04)    2.23                32
 11/01/2015   06:09:00   (  70.27,  84.47) 11/01/2015   06:09:45  (  70.25,  84.43)    3.28                45
 11/03/2015   20:46:29   (  70.67,-134.35) 11/03/2015   20:45:17  (  70.72,-135.17)   30.52                72
 11/03/2015   21:36:03   ( -70.34,  32.80) 11/03/2015   21:35:54  ( -70.35,  32.73)    3.00                 9
 11/03/2015   22:25:31   (  70.18,-159.79) 11/03/2015   22:26:37  (  70.20,-159.72)    3.28                66
 11/06/2015   13:03:03   (  70.40, -18.87) 11/06/2015   13:02:04  (  70.41, -18.90)    1.69                59
 11/06/2015   13:52:33   ( -70.29, 148.61) 11/06/2015   13:52:46  ( -70.30, 148.58)    1.96                13
 11/06/2015   14:42:11   (  69.58, -44.75) 11/06/2015   14:43:19  (  69.62, -43.09)   64.61                68
 11/09/2015   05:19:32   (  70.39,  97.00) 11/09/2015   05:18:56  (  70.37,  96.93)    3.33                36
 11/09/2015   06:09:02   ( -70.28, -95.52) 11/09/2015   06:09:38  ( -70.26, -95.59)    3.45                36
 11/11/2015   20:46:24   ( -70.97,  46.11) 11/11/2015   20:45:15  ( -71.05,  44.28)   66.99                69
 11/11/2015   21:36:01   (  70.31,-147.23) 11/11/2015   21:35:47  (  70.34,-147.25)    2.75                14
 11/11/2015   22:25:31   ( -70.21,  20.25) 11/11/2015   22:26:29  ( -70.22,  20.24)    1.66                58