Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 2 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)
 02/15/2017   06:58:19   (  70.12,  71.84) 02/15/2017   06:57:55  (  70.11,  71.80)    1.61                24
 02/15/2017   07:47:49   ( -70.00,-120.69) 02/15/2017   07:48:36  ( -69.99,-120.69)    1.41                47
 02/17/2017   22:25:19   ( -70.30,  20.32) 02/17/2017   22:24:06  ( -70.32,  19.95)   14.25                73
 02/17/2017   23:14:48   (  70.08,-172.34) 02/17/2017   23:14:48  (  70.09,-172.38)    1.70                 0
 02/18/2017   00:04:18   ( -69.97,  -4.86) 02/18/2017   00:05:29  ( -69.96,  -4.87)    1.19                71
 02/20/2017   14:41:50   ( -70.15, 135.99) 02/20/2017   14:40:56  ( -70.13, 136.01)    1.85                54
 02/20/2017   15:31:17   (  70.04, -56.52) 02/20/2017   15:31:41  (  70.06, -56.57)    2.89                24
 02/20/2017   16:21:01   ( -69.16, 109.92) 02/20/2017   16:22:08  ( -69.19, 112.03)   83.16                67
 02/23/2017   06:58:19   ( -70.11,-108.19) 02/23/2017   06:57:49  ( -70.11,-108.17)    0.98                30
 02/23/2017   07:47:46   (  70.00,  59.30) 02/23/2017   07:48:33  (  69.99,  59.32)    1.41                47
 02/25/2017   22:25:15   (  70.27,-159.71) 02/25/2017   22:24:02  (  70.33,-160.05)   14.45                73
 02/25/2017   23:14:47   ( -70.06,   7.62) 02/25/2017   23:14:41  ( -70.09,   7.64)    3.07                 6
 02/26/2017   00:04:14   (  69.95, 175.11) 02/26/2017   00:05:25  (  69.97, 175.13)    2.66                71
 02/28/2017   14:41:45   (  70.16, -43.99) 02/28/2017   14:40:52  (  70.16, -44.01)    1.16                53
 02/28/2017   15:31:15   ( -70.06, 123.50) 02/28/2017   15:31:34  ( -70.06, 123.45)    1.90                19