Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 26.  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)
 12/27/2019   14:41:55   ( -70.94, 137.20) 12/27/2019   14:40:48  ( -70.97, 134.75)   88.98                67
 12/27/2019   15:31:36   (  70.07, -56.44) 12/27/2019   15:31:17  (  70.07, -56.50)    2.21                19
 12/27/2019   16:21:07   ( -69.91, 110.96) 12/27/2019   16:21:58  ( -69.93, 111.03)    3.59                51
 12/30/2019   06:58:38   ( -70.14,-108.11) 12/30/2019   06:57:25  ( -70.11,-108.10)    3.05                73
 12/30/2019   07:48:05   (  70.03,  59.38) 12/30/2019   07:48:09  (  70.00,  59.37)    2.68                 4
 12/30/2019   08:37:37   ( -69.81,-133.28) 12/30/2019   08:38:49  ( -69.80,-133.01)   10.65                72
 01/01/2020   23:15:07   ( -70.10,   7.72) 01/01/2020   23:14:18  ( -70.10,   7.70)    0.85                49
 01/02/2020   00:04:34   (  69.99, 175.20) 01/02/2020   00:05:02  (  69.99, 175.17)    1.67                28
 01/04/2020   14:41:51   (  70.98, -42.72) 01/04/2020   14:40:45  (  71.03, -45.34)   94.85                66
 01/04/2020   15:31:36   ( -70.06, 123.54) 01/04/2020   15:31:10  ( -70.03, 123.57)    2.97                26
 01/04/2020   16:21:03   (  69.94, -68.98) 01/04/2020   16:21:54  (  69.93, -68.96)    1.04                51
 01/07/2020   06:58:33   (  70.16,  71.94) 01/07/2020   06:57:21  (  70.18,  71.81)    5.47                72
 01/07/2020   07:48:04   ( -70.01,-120.64) 01/07/2020   07:48:02  ( -70.02,-120.63)    1.37                 2
 01/07/2020   08:37:32   (  69.84,  46.76) 01/07/2020   08:38:44  (  69.82,  46.98)    8.73                72