Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 10 23.  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)
 10/24/2015   04:29:48   ( -71.28, -69.27) 10/24/2015   04:28:41  ( -71.33, -71.96)   95.95                67
 10/24/2015   05:19:30   (  70.37,  96.97) 10/24/2015   05:19:09  (  70.38,  96.93)    1.83                21
 10/24/2015   06:09:00   ( -70.26, -95.56) 10/24/2015   06:09:50  ( -70.24, -95.54)    1.91                50
 10/26/2015   20:46:33   ( -70.47,  45.35) 10/26/2015   20:45:19  ( -70.53,  45.14)   10.33                74
 10/26/2015   21:36:01   (  70.31,-147.23) 10/26/2015   21:36:01  (  70.31,-147.21)    1.04                 0
 10/26/2015   22:25:31   ( -70.20,  20.24) 10/26/2015   22:26:43  ( -70.22,  20.25)    2.44                72
 10/29/2015   13:03:04   ( -70.40, 161.13) 10/29/2015   13:02:10  ( -70.42, 161.09)    2.20                54
 10/29/2015   13:52:31   (  70.29, -31.38) 10/29/2015   13:52:54  (  70.31, -31.43)    2.32                23
 10/29/2015   14:42:15   ( -69.42, 135.03) 10/29/2015   14:43:21  ( -69.42, 137.21)   85.09                66
 11/01/2015   05:19:33   ( -70.37, -83.04) 11/01/2015   05:19:01  ( -70.36, -83.05)    1.19                32
 11/01/2015   06:09:00   (  70.26,  84.45) 11/01/2015   06:09:45  (  70.26,  84.42)    1.29                45
 11/03/2015   20:46:29   (  70.65,-134.38) 11/03/2015   20:45:17  (  70.73,-135.19)   31.28                72
 11/03/2015   21:36:03   ( -70.32,  32.78) 11/03/2015   21:35:53  ( -70.31,  32.80)    1.57                10
 11/03/2015   22:25:30   (  70.21,-159.74) 11/03/2015   22:26:37  (  70.21,-159.74)    0.11                67
 11/06/2015   13:03:03   (  70.36, -18.92) 11/06/2015   13:02:03  (  70.38, -18.85)    2.87                60
 11/06/2015   13:52:33   ( -70.26, 148.57) 11/06/2015   13:52:45  ( -70.27, 148.63)    2.59                12
 11/06/2015   14:42:10   (  69.60, -44.72) 11/06/2015   14:43:18  (  69.59, -43.04)   65.04                68