Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 2 9.  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)
 02/10/2019   14:41:41   ( -70.14, 136.01) 02/10/2019   14:40:59  ( -70.11, 136.01)    3.19                42
 02/10/2019   15:31:09   (  69.98, -56.57) 02/10/2019   15:31:43  (  69.99, -56.50)    3.05                34
 02/13/2019   06:08:31   (  70.75,  85.15) 02/13/2019   06:07:22  (  70.78,  83.41)   63.78                69
 02/13/2019   06:58:11   ( -70.10,-108.18) 02/13/2019   06:57:53  ( -70.11,-108.21)    2.25                18
 02/13/2019   07:47:37   (  69.99,  59.31) 02/13/2019   07:48:36  (  69.99,  59.27)    1.56                59
 02/15/2019   22:25:10   (  70.16,-159.85) 02/15/2019   22:24:03  (  70.15,-159.81)    1.79                67
 02/15/2019   23:14:40   ( -70.05,   7.64) 02/15/2019   23:14:45  ( -70.06,   7.64)    0.83                 5
 02/16/2019   00:04:13   (  69.61, 174.67) 02/16/2019   00:05:23  (  69.63, 175.60)   35.82                70
 02/18/2019   14:41:40   (  70.12, -44.03) 02/18/2019   14:40:56  (  70.10, -43.97)    3.03                44
 02/18/2019   15:31:10   ( -70.02, 123.46) 02/18/2019   15:31:38  ( -70.01, 123.49)    1.01                28
 02/21/2019   06:08:29   ( -70.96, -94.54) 02/21/2019   06:07:21  ( -71.01, -96.96)   87.63                68
 02/21/2019   06:58:10   (  70.09,  71.80) 02/21/2019   06:57:50  (  70.11,  71.79)    2.94                20
 02/21/2019   07:47:40   ( -69.98,-120.71) 02/21/2019   07:48:31  ( -69.97,-120.67)    2.22                51