Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 14.  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)
 06/15/2017   06:58:07   ( -70.09,-108.14) 06/15/2017   06:57:32  ( -70.12,-108.11)    3.05                35
 06/15/2017   07:47:34   (  69.99,  59.37) 06/15/2017   07:48:16  (  69.98,  59.40)    1.92                42
 06/17/2017   22:25:02   (  70.48,-159.32) 06/17/2017   22:23:51  (  70.51,-160.27)   35.36                71
 06/17/2017   23:14:37   ( -70.10,   7.75) 06/17/2017   23:14:26  ( -70.07,   7.74)    3.13                11
 06/18/2017   00:04:05   (  69.94, 175.17) 06/18/2017   00:05:10  (  69.94, 175.25)    2.91                65
 06/20/2017   14:41:38   (  70.15, -43.93) 06/20/2017   14:40:39  (  70.15, -43.93)    0.20                59
 06/20/2017   15:31:08   ( -70.04, 123.55) 06/20/2017   15:31:20  ( -70.02, 123.59)    2.74                12
 06/20/2017   16:20:46   (  69.33, -69.78) 06/20/2017   16:21:54  (  69.36, -68.14)   64.62                68
 06/23/2017   06:58:08   (  70.09,  71.86) 06/23/2017   06:57:32  (  70.11,  71.90)    2.83                36
 06/23/2017   07:47:37   ( -70.04,-120.58) 06/23/2017   07:48:14  ( -70.03,-120.65)    3.03                37
 06/25/2017   22:25:02   ( -70.68,  20.97) 06/25/2017   22:23:52  ( -70.71,  19.42)   57.17                70
 06/25/2017   23:14:38   (  70.08,-172.27) 06/25/2017   23:14:26  (  70.07,-172.26)    0.87                12
 06/26/2017   00:04:08   ( -69.98,  -4.78) 06/26/2017   00:05:08  ( -69.98,  -4.81)    1.46                60
 06/28/2017   14:41:41   ( -70.18, 136.11) 06/28/2017   14:40:36  ( -70.15, 136.09)    3.39                65
 06/28/2017   15:31:08   (  70.06, -56.41) 06/28/2017   15:31:20  (  70.03, -56.43)    3.46                12
 06/28/2017   16:20:45   ( -69.58, 110.55) 06/28/2017   16:21:55  ( -69.57, 111.57)   39.69                70