Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 10.  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)
 12/11/2019   14:42:04   ( -70.68, 136.81) 12/11/2019   14:40:55  ( -70.73, 135.12)   62.20                69
 12/11/2019   15:31:41   (  70.03, -56.50) 12/11/2019   15:31:28  (  70.04, -56.47)    1.31                13
 12/11/2019   16:21:11   ( -69.92, 110.98) 12/11/2019   16:22:10  ( -69.95, 110.97)    3.56                59
 12/14/2019   06:58:42   ( -70.12,-108.13) 12/14/2019   06:57:36  ( -70.13,-108.14)    0.53                66
 12/14/2019   07:48:09   (  70.01,  59.36) 12/14/2019   07:48:20  (  70.01,  59.34)    0.67                11
 12/14/2019   08:37:45   ( -69.58,-133.61) 12/14/2019   08:38:56  ( -69.61,-132.74)   33.90                71
 12/16/2019   23:15:11   ( -70.11,   7.73) 12/16/2019   23:14:29  ( -70.10,   7.67)    2.15                42
 12/17/2019   00:04:38   (  69.99, 175.21) 12/17/2019   00:05:13  (  69.99, 175.15)    2.33                35
 12/19/2019   14:42:00   (  70.73, -43.10) 12/19/2019   14:40:51  (  70.75, -44.90)   65.89                69
 12/19/2019   15:31:41   ( -70.03, 123.50) 12/19/2019   15:31:21  ( -70.02, 123.57)    2.80                20
 12/19/2019   16:21:08   (  69.91, -69.02) 12/19/2019   16:22:05  (  69.91, -68.96)    2.16                57
 12/22/2019   06:58:40   (  70.10,  71.85) 12/22/2019   06:57:32  (  70.10,  71.91)    2.19                68
 12/22/2019   07:48:10   ( -70.01,-120.65) 12/22/2019   07:48:14  ( -70.00,-120.62)    1.49                 4
 12/22/2019   08:37:42   (  69.61,  46.44) 12/22/2019   08:38:53  (  69.63,  47.23)   30.62                71