Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 1 31.  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)
 02/01/2017   22:25:27   ( -70.22,  20.21) 02/01/2017   22:24:14  ( -70.25,  20.04)    7.46                73
 02/01/2017   23:14:55   (  70.06,-172.36) 02/01/2017   23:14:57  (  70.06,-172.37)    0.20                 2
 02/02/2017   00:04:25   ( -69.94,  -4.89) 02/02/2017   00:05:38  ( -69.94,  -4.86)    1.29                73
 02/04/2017   14:41:56   ( -70.14, 135.99) 02/04/2017   14:41:06  ( -70.15, 135.96)    1.65                50
 02/04/2017   15:31:23   (  70.04, -56.51) 02/04/2017   15:31:50  (  70.02, -56.53)    1.98                27
 02/04/2017   16:21:09   ( -69.04, 109.78) 02/04/2017   16:22:15  ( -69.05, 112.19)   95.98                66
 02/07/2017   06:08:40   (  70.99,  85.51) 02/07/2017   06:07:33  (  71.03,  83.00)   90.85                67
 02/07/2017   06:58:24   ( -70.12,-108.16) 02/07/2017   06:57:59  ( -70.11,-108.20)    1.64                25
 02/07/2017   07:47:51   (  70.01,  59.33) 02/07/2017   07:48:43  (  69.98,  59.30)    3.12                52
 02/09/2017   22:25:22   (  70.14,-159.88) 02/09/2017   22:24:09  (  70.15,-159.81)    3.06                73
 02/09/2017   23:14:51   ( -70.09,   7.68) 02/09/2017   23:14:51  ( -70.08,   7.63)    2.31                 0
 02/10/2017   00:04:21   (  69.81, 174.94) 02/10/2017   00:05:33  (  69.84, 175.29)   13.86                72
 02/12/2017   14:41:50   (  70.10, -44.05) 02/12/2017   14:41:02  (  70.12, -43.98)    3.28                48
 02/12/2017   15:31:19   ( -70.05, 123.51) 02/12/2017   15:31:44  ( -70.04, 123.46)    2.44                25