Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 10 21.  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)
 10/23/2020   23:15:11   (  70.06,-172.31) 10/23/2020   23:14:42  (  70.09,-172.30)    3.40                29
 10/24/2020   00:04:40   ( -70.01,  -4.76) 10/24/2020   00:05:24  ( -69.99,  -4.83)    3.02                44
 10/26/2020   14:42:09   ( -70.37, 136.37) 10/26/2020   14:40:57  ( -70.47, 135.59)   31.22                72
 10/26/2020   15:31:40   (  70.05, -56.45) 10/26/2020   15:31:35  (  70.05, -56.45)    0.26                 5
 10/26/2020   16:21:10   ( -69.94, 111.03) 10/26/2020   16:22:17  ( -69.95, 111.01)    1.28                67
 10/29/2020   06:58:43   ( -70.09,-108.15) 10/29/2020   06:57:44  ( -70.11,-108.08)    3.23                59
 10/29/2020   07:48:10   (  69.98,  59.34) 10/29/2020   07:48:28  (  70.00,  59.38)    2.92                18
 10/29/2020   08:37:50   ( -69.32,-133.92) 10/29/2020   08:38:59  ( -69.32,-132.30)   63.71                69
 10/31/2020   23:15:12   ( -70.08,   7.72) 10/31/2020   23:14:37  ( -70.06,   7.75)    2.64                35
 11/01/2020   00:04:39   (  69.97, 175.21) 11/01/2020   00:05:21  (  69.96, 175.22)    1.48                42
 11/03/2020   14:42:05   (  70.46, -43.48) 11/03/2020   14:40:54  (  70.49, -44.46)   36.65                71
 11/03/2020   15:31:41   ( -70.03, 123.52) 11/03/2020   15:31:29  ( -70.02, 123.59)    2.44                12
 11/03/2020   16:21:08   (  69.91, -68.99) 11/03/2020   16:22:13  (  69.92, -68.95)    1.48                65