Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 10 18.  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)
 10/20/2021   07:23:13   (  70.00,  65.50) 10/20/2021   07:23:35  (  69.99,  65.50)    1.22                22
 10/20/2021   08:13:54   ( -69.85,-126.97) 10/20/2021   08:13:05  ( -69.87,-127.03)    3.07                49
 10/22/2021   22:49:24   ( -70.22,  13.62) 10/22/2021   22:50:35  ( -70.16,  13.97)   15.05                71
 10/22/2021   23:40:05   (  69.96,-178.66) 10/22/2021   23:40:04  (  69.95,-178.68)    1.38                 1
 10/23/2021   00:30:47   ( -69.86, -11.20) 10/23/2021   00:29:34  ( -69.83, -11.20)    3.02                73
 10/25/2021   15:06:15   ( -70.07, 129.63) 10/25/2021   15:07:06  ( -70.06, 129.71)    3.44                51
 10/25/2021   15:56:58   (  69.91, -62.82) 10/25/2021   15:56:34  (  69.90, -62.87)    2.79                24
 10/25/2021   16:47:25   ( -69.02, 105.78) 10/25/2021   16:46:17  ( -69.07, 103.66)   84.76                68
 10/28/2021   07:23:08   ( -70.03,-114.53) 10/28/2021   07:23:36  ( -70.00,-114.48)    3.17                28
 10/28/2021   08:13:51   (  69.87,  53.02) 10/28/2021   08:13:03  (  69.89,  53.01)    2.28                48
 10/30/2021   22:49:22   (  70.25,-166.41) 10/30/2021   22:50:34  (  70.16,-166.02)   18.06                72
 10/30/2021   23:40:00   ( -69.93,   1.39) 10/30/2021   23:40:06  ( -69.94,   1.32)    3.16                 6
 10/31/2021   00:30:44   (  69.83, 168.85) 10/31/2021   00:29:33  (  69.83, 168.80)    1.89                71