Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 13.  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)
 03/14/2018   06:57:59   ( -70.10,-108.20) 03/14/2018   06:57:24  ( -70.13,-108.13)    3.52                35
 03/14/2018   07:47:26   (  70.00,  59.30) 03/14/2018   07:48:08  (  70.00,  59.37)    2.48                42
 03/16/2018   22:24:54   (  70.35,-159.60) 03/16/2018   22:23:42  (  70.40,-160.11)   19.86                72
 03/16/2018   23:14:26   ( -70.12,   7.71) 03/16/2018   23:14:20  ( -70.10,   7.67)    2.82                 6
 03/17/2018   00:03:54   (  69.96, 175.13) 03/17/2018   00:05:04  (  69.98, 175.17)    2.39                70
 03/19/2018   14:41:24   (  70.19, -43.94) 03/19/2018   14:40:34  (  70.17, -43.98)    3.09                50
 03/19/2018   15:30:54   ( -70.09, 123.54) 03/19/2018   15:31:16  ( -70.08, 123.47)    2.56                22
 03/19/2018   16:20:38   (  69.04, -70.23) 03/19/2018   16:21:43  (  69.06, -67.73)   99.35                65
 03/22/2018   06:57:51   (  70.15,  71.88) 03/22/2018   06:57:29  (  70.15,  71.81)    2.66                22
 03/22/2018   07:47:22   ( -69.99,-120.72) 03/22/2018   07:48:10  ( -70.01,-120.65)    3.35                48
 03/24/2018   22:24:52   ( -70.21,  20.21) 03/24/2018   22:23:40  ( -70.19,  20.21)    2.22                72
 03/24/2018   23:14:19   (  70.10,-172.31) 03/24/2018   23:14:24  (  70.09,-172.32)    1.42                 5
 03/25/2018   00:03:51   ( -69.89,  -4.98) 03/25/2018   00:05:04  ( -69.88,  -4.69)   10.88                73
 03/27/2018   14:41:20   ( -70.16, 136.02) 03/27/2018   14:40:36  ( -70.18, 136.00)    1.50                44
 03/27/2018   15:30:47   (  70.05, -56.50) 03/27/2018   15:31:20  (  70.07, -56.53)    3.17                33