Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 2 22.  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)
 02/23/2017   06:58:19   ( -70.10,-108.20) 02/23/2017   06:57:49  ( -70.11,-108.17)    1.53                30
 02/23/2017   07:47:46   (  70.00,  59.30) 02/23/2017   07:48:33  (  69.98,  59.33)    2.67                47
 02/25/2017   22:25:15   (  70.28,-159.71) 02/25/2017   22:24:02  (  70.32,-160.04)   13.51                73
 02/25/2017   23:14:46   ( -70.11,   7.69) 02/25/2017   23:14:41  ( -70.08,   7.65)    3.17                 5
 02/26/2017   00:04:14   (  69.95, 175.11) 02/26/2017   00:05:25  (  69.96, 175.14)    1.73                71
 02/28/2017   14:41:45   (  70.17, -43.99) 02/28/2017   14:40:52  (  70.15, -43.99)    2.37                53
 02/28/2017   15:31:15   ( -70.06, 123.49) 02/28/2017   15:31:34  ( -70.06, 123.46)    1.32                19
 02/28/2017   16:20:57   (  69.12, -70.13) 02/28/2017   16:22:03  (  69.14, -67.90)   88.50                66
 03/03/2017   06:58:14   (  70.11,  71.81) 03/03/2017   06:57:45  (  70.13,  71.81)    2.50                29
 03/03/2017   07:47:44   ( -70.00,-120.71) 03/03/2017   07:48:26  ( -69.99,-120.65)    2.61                42
 03/05/2017   22:25:11   ( -70.43,  20.51) 03/05/2017   22:23:59  ( -70.49,  19.72)   29.87                72
 03/05/2017   23:14:42   (  70.10,-172.32) 03/05/2017   23:14:38  (  70.12,-172.39)    3.09                 4
 03/06/2017   00:04:12   ( -69.99,  -4.84) 03/06/2017   00:05:19  ( -69.97,  -4.85)    2.89                67