Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 10 6.  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)
 10/07/2020   22:25:29   ( -71.05,  21.51) 10/07/2020   22:24:22  ( -71.08,  18.82)   97.10                67
 10/07/2020   23:15:12   (  70.07,-172.31) 10/07/2020   23:14:49  (  70.08,-172.27)    1.88                23
 10/08/2020   00:04:42   ( -69.96,  -4.83) 10/08/2020   00:05:31  ( -69.99,  -4.81)    3.05                49
 10/10/2020   14:42:14   ( -70.19, 136.10) 10/10/2020   14:41:00  ( -70.23, 135.96)    7.05                74
 10/10/2020   15:31:42   (  70.03, -56.48) 10/10/2020   15:31:42  (  70.02, -56.40)    3.26                 0
 10/10/2020   16:21:12   ( -69.92, 111.00) 10/10/2020   16:22:24  ( -69.92, 111.06)    2.09                72
 10/13/2020   06:58:45   ( -70.10,-108.15) 10/13/2020   06:57:52  ( -70.12,-108.10)    3.15                53
 10/13/2020   07:48:12   (  69.99,  59.34) 10/13/2020   07:48:36  (  70.01,  59.37)    2.99                24
 10/13/2020   08:37:56   ( -69.11,-134.21) 10/13/2020   08:39:03  ( -69.12,-132.02)   86.92                67
 10/15/2020   23:15:14   ( -70.11,   7.74) 10/15/2020   23:14:46  ( -70.12,   7.68)    2.74                28
 10/16/2020   00:04:42   (  69.94, 175.15) 10/16/2020   00:05:29  (  69.96, 175.23)    3.29                47
 10/18/2020   14:42:11   (  70.27, -43.78) 10/18/2020   14:40:59  (  70.32, -44.19)   16.45                72
 10/18/2020   15:31:43   ( -70.06, 123.55) 10/18/2020   15:31:38  ( -70.06, 123.53)    1.06                 5
 10/18/2020   16:21:10   (  69.94, -68.96) 10/18/2020   16:22:22  (  69.96, -69.00)    2.25                72