Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 2 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)
 02/13/2020   14:41:44   ( -70.90, 137.12) 02/13/2020   14:40:37  ( -70.96, 134.77)   85.78                67
 02/13/2020   15:31:25   (  70.04, -56.51) 02/13/2020   15:31:06  (  70.05, -56.48)    2.10                19
 02/13/2020   16:20:54   ( -69.98, 111.04) 02/13/2020   16:21:48  ( -69.97, 110.97)    2.92                54
 02/16/2020   06:58:27   ( -70.15,-108.12) 02/16/2020   06:57:18  ( -70.16,-108.19)    2.77                69
 02/16/2020   07:47:54   (  70.04,  59.37) 02/16/2020   07:48:02  (  70.04,  59.30)    2.68                 8
 02/16/2020   08:37:28   ( -69.71,-133.45) 02/16/2020   08:38:40  ( -69.74,-132.93)   20.46                72
 02/18/2020   23:14:56   ( -70.11,   7.70) 02/18/2020   23:14:12  ( -70.10,   7.68)    1.56                44
 02/19/2020   00:04:23   (  70.00, 175.19) 02/19/2020   00:04:56  (  69.98, 175.16)    2.56                33
 02/21/2020   14:41:46   (  70.74, -43.14) 02/21/2020   14:40:37  (  70.77, -44.93)   65.84                69
 02/21/2020   15:31:27   ( -70.03, 123.46) 02/21/2020   15:31:07  ( -70.04, 123.53)    3.06                20
 02/21/2020   16:20:54   (  69.92, -69.05) 02/21/2020   16:21:51  (  69.93, -68.99)    2.59                57
 02/24/2020   06:58:27   (  70.11,  71.82) 02/24/2020   06:57:21  (  70.13,  71.84)    2.19                66
 02/24/2020   07:47:57   ( -70.01,-120.69) 02/24/2020   07:48:03  ( -70.04,-120.70)    2.78                 6
 02/24/2020   08:37:30   (  69.57,  46.34) 02/24/2020   08:38:40  (  69.55,  47.33)   38.46                70
 02/26/2020   23:14:57   (  70.10,-172.32) 02/26/2020   23:14:16  (  70.08,-172.31)    2.62                41
 02/27/2020   00:04:27   ( -70.00,  -4.83) 02/27/2020   00:04:58  ( -69.98,  -4.85)    2.42                31