Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 9 11.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2021   22:49:38   (  70.06,-166.18) 09/12/2021   22:50:26  (  70.08,-166.10)    3.15                48
 09/12/2021   23:40:19   ( -69.93,   1.34) 09/12/2021   23:39:57  ( -69.91,   1.29)    2.94                22
 09/15/2021   15:06:31   (  69.98, -50.29) 09/15/2021   15:06:57  (  69.99, -50.34)    2.26                26
 09/15/2021   15:57:13   ( -69.90, 117.16) 09/15/2021   15:56:27  ( -69.88, 117.14)    1.83                46
 09/18/2021   06:32:45   ( -70.34,-102.37) 09/18/2021   06:33:56  ( -70.23,-101.77)   25.52                71
 09/18/2021   07:23:24   (  69.96,  65.52) 09/18/2021   07:23:26  (  69.96,  65.49)    1.09                 2
 09/18/2021   08:14:06   ( -69.87,-127.03) 09/18/2021   08:12:56  ( -69.85,-127.02)    1.94                70
 09/20/2021   22:49:34   ( -70.05,  13.85) 09/20/2021   22:50:29  ( -70.03,  13.83)    2.15                55
 09/20/2021   23:40:18   (  69.94,-178.67) 09/20/2021   23:39:56  (  69.92,-178.68)    1.99                22
 09/21/2021   00:30:46   ( -69.10, -10.15) 09/21/2021   00:29:38  ( -69.16, -12.08)   76.74                68
 09/23/2021   15:06:28   ( -70.03, 129.66) 09/23/2021   15:06:58  ( -70.04, 129.73)    3.40                30
 09/23/2021   15:57:11   (  69.87, -62.79) 09/23/2021   15:56:26  (  69.88, -62.86)    2.84                45