Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 9 13.  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)
 09/13/2016   14:42:08   ( -70.18, 136.09) 09/13/2016   14:41:08  ( -70.20, 136.06)    3.07                60
 09/13/2016   15:31:35   (  70.07, -56.42) 09/13/2016   15:31:52  (  70.09, -56.46)    2.49                17
 09/13/2016   16:21:14   ( -69.47, 110.38) 09/13/2016   16:22:23  ( -69.42, 111.85)   57.63                69
 09/16/2016   06:58:38   ( -70.14,-108.08) 09/16/2016   06:58:00  ( -70.14,-108.06)    0.91                38
 09/16/2016   07:48:05   (  70.03,  59.41) 09/16/2016   07:48:44  (  70.02,  59.42)    0.86                39
 09/18/2016   22:25:30   (  70.64,-159.11) 09/18/2016   22:24:20  (  70.69,-160.48)   50.86                70
 09/18/2016   23:15:08   ( -70.10,   7.74) 09/18/2016   23:14:53  ( -70.13,   7.73)    3.27                15
 09/19/2016   00:04:35   (  69.98, 175.22) 09/19/2016   00:05:37  (  70.01, 175.21)    3.51                62
 09/21/2016   14:42:06   (  70.20, -43.87) 09/21/2016   14:41:03  (  70.21, -43.93)    2.71                63
 09/21/2016   15:31:37   ( -70.05, 123.55) 09/21/2016   15:31:44  ( -70.06, 123.61)    3.03                 7
 09/21/2016   16:21:11   (  69.54, -69.50) 09/21/2016   16:22:20  (  69.53, -68.29)   47.26                69
 09/24/2016   06:58:36   (  70.14,  71.93) 09/24/2016   06:57:55  (  70.15,  71.94)    1.07                41
 09/24/2016   07:48:06   ( -70.04,-120.57) 09/24/2016   07:48:37  ( -70.06,-120.60)    1.77                31
 09/26/2016   22:25:26   ( -70.90,  21.31) 09/26/2016   22:24:18  ( -70.98,  19.06)   82.00                68
 09/26/2016   23:15:05   (  70.13,-172.20) 09/26/2016   23:14:48  (  70.15,-172.28)    3.41                17
 09/27/2016   00:04:36   ( -69.98,  -4.78) 09/27/2016   00:05:29  ( -70.00,  -4.74)    2.61                53