Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 1 27.  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)
 01/30/2017   06:58:27   (  70.10,  71.81) 01/30/2017   06:58:04  (  70.08,  71.83)    2.05                23
 01/30/2017   07:47:57   ( -69.98,-120.72) 01/30/2017   07:48:46  ( -70.01,-120.75)    2.95                49
 02/01/2017   22:25:28   ( -70.19,  20.17) 02/01/2017   22:24:14  ( -70.22,  20.08)    5.34                74
 02/01/2017   23:14:56   (  70.03,-172.41) 02/01/2017   23:14:57  (  70.04,-172.34)    3.32                 1
 02/02/2017   00:04:25   ( -69.97,  -4.86) 02/02/2017   00:05:39  ( -69.97,  -4.91)    1.86                74
 02/04/2017   14:41:56   ( -70.11, 135.94) 02/04/2017   14:41:05  ( -70.13, 136.00)    2.86                51
 02/04/2017   15:31:23   (  70.00, -56.56) 02/04/2017   15:31:49  (  70.00, -56.50)    2.40                26
 02/04/2017   16:21:09   ( -69.01, 109.74) 02/04/2017   16:22:14  ( -69.02, 112.23)   99.11                65
 02/07/2017   06:08:39   (  71.01,  85.54) 02/07/2017   06:07:33  (  71.06,  82.95)   93.70                66
 02/07/2017   06:58:24   ( -70.08,-108.21) 02/07/2017   06:57:58  ( -70.09,-108.17)    1.88                26
 02/07/2017   07:47:51   (  69.97,  59.27) 02/07/2017   07:48:42  (  69.96,  59.33)    2.15                51
 02/09/2017   22:25:21   (  70.21,-159.78) 02/09/2017   22:24:10  (  70.19,-159.86)    3.58                71
 02/09/2017   23:14:52   ( -70.05,   7.62) 02/09/2017   23:14:51  ( -70.05,   7.66)    1.66                 1
 02/10/2017   00:04:21   (  69.82, 174.95) 02/10/2017   00:05:33  (  69.82, 175.31)   13.87                72