Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 4 6.  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)
 04/06/2017   23:14:24   (  70.11,-172.33) 04/06/2017   23:14:22  (  70.11,-172.33)    0.26                 2
 04/07/2017   00:03:54   ( -70.00,  -4.86) 04/07/2017   00:05:04  ( -70.01,  -4.86)    1.65                70
 04/09/2017   14:41:25   ( -70.20, 136.03) 04/09/2017   14:40:34  ( -70.21, 135.97)    2.62                51
 04/09/2017   15:30:53   (  70.04, -56.55) 04/09/2017   15:31:17  (  70.06, -56.48)    3.13                24
 04/09/2017   16:20:38   ( -69.10, 109.82) 04/09/2017   16:21:44  ( -69.16, 112.15)   92.43                66
 04/12/2017   06:08:09   (  71.06,  85.56) 04/12/2017   06:07:03  (  71.10,  82.98)   93.47                66
 04/12/2017   06:57:54   ( -70.13,-108.19) 04/12/2017   06:57:29  ( -70.16,-108.17)    3.14                25
 04/12/2017   07:47:20   (  70.02,  59.30) 04/12/2017   07:48:11  (  70.00,  59.37)    3.30                51
 04/14/2017   22:24:51   (  70.21,-159.83) 04/14/2017   22:23:41  (  70.21,-159.81)    0.80                70
 04/14/2017   23:14:21   ( -70.11,   7.65) 04/14/2017   23:14:23  ( -70.10,   7.68)    0.95                 2
 04/15/2017   00:03:52   (  69.77, 174.83) 04/15/2017   00:05:03  (  69.79, 175.45)   23.93                71
 04/17/2017   14:41:19   (  70.18, -43.99) 04/17/2017   14:40:36  (  70.16, -43.96)    2.26                43
 04/17/2017   15:30:49   ( -70.08, 123.49) 04/17/2017   15:31:18  ( -70.05, 123.52)    3.13                29
 04/20/2017   06:08:09   ( -70.86, -94.75) 04/20/2017   06:07:00  ( -70.89, -96.67)   69.98                69
 04/20/2017   06:57:47   (  70.14,  71.83) 04/20/2017   06:57:32  (  70.17,  71.80)    3.10                15
 04/20/2017   07:47:17   ( -70.04,-120.68) 04/20/2017   07:48:14  ( -70.06,-120.71)    1.93                57