Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 2 20.  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)
 02/21/2016   06:08:48   (  70.25,  84.40) 02/21/2016   06:08:24  (  70.27,  84.39)    1.69                24
 02/21/2016   06:58:18   ( -70.14,-108.12) 02/21/2016   06:59:05  ( -70.14,-108.09)    1.38                47
 02/23/2016   21:35:47   ( -70.48,  32.97) 02/23/2016   21:34:34  ( -70.56,  32.41)   22.57                73
 02/23/2016   22:25:17   (  70.21,-159.78) 02/23/2016   22:25:14  (  70.23,-159.77)    1.93                 3
 02/23/2016   23:14:47   ( -70.10,   7.70) 02/23/2016   23:15:55  ( -70.10,   7.76)    2.30                68
 02/26/2016   13:52:19   ( -70.33, 148.62) 02/26/2016   13:51:21  ( -70.31, 148.58)    2.29                58
 02/26/2016   14:41:46   (  70.22, -43.89) 02/26/2016   14:42:05  (  70.20, -43.94)    2.92                19
 02/26/2016   15:31:27   ( -69.51, 122.75) 02/26/2016   15:32:35  ( -69.48, 124.46)   66.54                68
 02/29/2016   06:08:49   ( -70.27, -95.59) 02/29/2016   06:08:12  ( -70.27, -95.58)    0.54                37
 02/29/2016   06:58:16   (  70.16,  71.89) 02/29/2016   06:58:56  (  70.16,  71.90)    0.68                40
 03/02/2016   21:35:40   (  70.79,-146.56) 03/02/2016   21:34:30  (  70.81,-147.97)   51.61                70
 03/02/2016   22:25:18   ( -70.25,  20.27) 03/02/2016   22:25:03  ( -70.24,  20.25)    2.04                15
 03/02/2016   23:14:45   (  70.14,-172.25) 03/02/2016   23:15:47  (  70.13,-172.28)    1.28                62
 03/05/2016   13:52:16   (  70.33, -31.38) 03/05/2016   13:51:11  (  70.31, -31.39)    2.66                65
 03/05/2016   14:41:46   ( -70.23, 136.11) 03/05/2016   14:41:53  ( -70.20, 136.09)    2.99                 7
 03/05/2016   15:31:20   (  69.73, -56.95) 03/05/2016   15:32:30  (  69.73, -55.90)   40.64                70