Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 5 11.  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)
 05/14/2017   06:08:11   (  70.69,  85.13) 05/14/2017   06:07:01  (  70.72,  83.59)   56.75                70
 05/14/2017   06:57:50   ( -70.09,-108.13) 05/14/2017   06:57:33  ( -70.11,-108.12)    2.72                17
 05/14/2017   07:47:17   (  69.98,  59.37) 05/14/2017   07:48:17  (  69.99,  59.37)    0.85                60
 05/16/2017   22:24:51   (  70.20,-159.73) 05/16/2017   22:23:46  (  70.18,-159.77)    2.78                65
 05/16/2017   23:14:21   ( -70.09,   7.75) 05/16/2017   23:14:28  ( -70.09,   7.68)    2.79                 7
 05/17/2017   00:03:55   (  69.60, 174.71) 05/17/2017   00:05:05  (  69.60, 175.72)   39.02                70
 05/19/2017   14:41:23   (  70.14, -43.93) 05/19/2017   14:40:41  (  70.16, -43.97)    2.69                42
 05/19/2017   15:30:53   ( -70.03, 123.55) 05/19/2017   15:31:22  ( -70.02, 123.56)    1.94                29
 05/22/2017   06:08:13   ( -70.95, -94.49) 05/22/2017   06:07:05  ( -70.99, -96.85)   85.56                68
 05/22/2017   06:57:54   (  70.07,  71.85) 05/22/2017   06:57:34  (  70.09,  71.91)    2.67                20
 05/22/2017   07:47:24   ( -69.97,-120.66) 05/22/2017   07:48:16  ( -70.00,-120.64)    2.96                52
 05/24/2017   22:24:58   ( -70.18,  20.23) 05/24/2017   22:23:45  ( -70.19,  20.22)    1.52                73
 05/24/2017   23:14:25   (  70.06,-172.29) 05/24/2017   23:14:29  (  70.07,-172.30)    1.45                 4
 05/25/2017   00:03:56   ( -69.91,  -4.87) 05/25/2017   00:05:09  ( -69.88,  -4.68)    7.95                73