Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 10 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)
 10/10/2020   14:42:14   ( -70.19, 136.10) 10/10/2020   14:41:00  ( -70.23, 135.96)    7.02                74
 10/10/2020   15:31:42   (  70.04, -56.48) 10/10/2020   15:31:43  (  70.07, -56.48)    3.59                 1
 10/10/2020   16:21:12   ( -69.92, 111.00) 10/10/2020   16:22:24  ( -69.92, 111.06)    2.14                72
 10/13/2020   06:58:45   ( -70.10,-108.15) 10/13/2020   06:57:52  ( -70.12,-108.10)    3.10                53
 10/13/2020   07:48:12   (  69.99,  59.34) 10/13/2020   07:48:36  (  70.01,  59.38)    2.27                24
 10/13/2020   08:37:56   ( -69.11,-134.21) 10/13/2020   08:39:03  ( -69.12,-132.02)   86.89                67
 10/15/2020   23:15:14   ( -70.11,   7.75) 10/15/2020   23:14:46  ( -70.12,   7.67)    2.86                28
 10/16/2020   00:04:42   (  69.95, 175.16) 10/16/2020   00:05:29  (  69.96, 175.23)    2.81                47
 10/18/2020   14:42:11   (  70.28, -43.77) 10/18/2020   14:40:59  (  70.32, -44.19)   16.45                72
 10/18/2020   15:31:43   ( -70.06, 123.56) 10/18/2020   15:31:38  ( -70.07, 123.52)    1.32                 5
 10/18/2020   16:21:10   (  69.95, -68.95) 10/18/2020   16:22:22  (  69.96, -69.00)    2.06                72
 10/21/2020   06:58:43   (  70.11,  71.88) 10/21/2020   06:57:49  (  70.11,  71.90)    1.06                54
 10/21/2020   07:48:13   ( -70.01,-120.64) 10/21/2020   07:48:31  ( -70.01,-120.63)    0.70                18
 10/21/2020   08:37:54   (  69.12,  45.81) 10/21/2020   08:39:00  (  69.11,  47.99)   86.44                66
 10/23/2020   23:15:13   (  70.05,-172.33) 10/23/2020   23:14:42  (  70.07,-172.26)    3.20                31
 10/24/2020   00:04:43   ( -69.95,  -4.84) 10/24/2020   00:05:24  ( -69.97,  -4.79)    2.60                41