Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 10 13.  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)
 10/14/2021   22:49:27   (  70.07,-166.17) 10/14/2021   22:50:35  (  70.08,-166.13)    1.42                68
 10/14/2021   23:40:08   ( -69.93,   1.37) 10/14/2021   23:40:05  ( -69.96,   1.33)    3.29                 3
 10/15/2021   00:30:48   (  69.60, 169.16) 10/15/2021   00:29:36  (  69.64, 168.54)   24.29                72
 10/17/2021   15:06:19   (  70.03, -50.32) 10/17/2021   15:07:04  (  70.05, -50.30)    2.38                45
 10/17/2021   15:57:01   ( -69.93, 117.14) 10/17/2021   15:56:34  ( -69.93, 117.18)    1.37                27
 10/20/2021   06:32:46   ( -71.03,-103.46) 10/20/2021   06:33:52  ( -70.93,-100.75)   98.95                66
 10/20/2021   07:23:12   (  69.98,  65.52) 10/20/2021   07:23:34  (  70.01,  65.53)    3.09                22
 10/20/2021   08:13:54   ( -69.88,-127.01) 10/20/2021   08:13:04  ( -69.90,-126.99)    1.77                50
 10/22/2021   22:49:24   ( -70.20,  13.66) 10/22/2021   22:50:36  ( -70.13,  13.93)   13.27                72
 10/22/2021   23:40:05   (  69.94,-178.64) 10/22/2021   23:40:04  (  69.97,-178.65)    2.96                 1
 10/23/2021   00:30:47   ( -69.84, -11.17) 10/23/2021   00:29:34  ( -69.86, -11.17)    2.16                73
 10/25/2021   15:06:15   ( -70.05, 129.66) 10/25/2021   15:07:07  ( -70.03, 129.67)    3.00                52
 10/25/2021   15:56:58   (  69.90, -62.80) 10/25/2021   15:56:34  (  69.92, -62.84)    2.20                24