Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 8 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)
 08/19/2021   22:49:41   ( -70.04,  13.86) 08/19/2021   22:50:22  ( -70.03,  13.83)    2.26                41
 08/19/2021   23:40:25   (  69.92,-178.65) 08/19/2021   23:39:49  (  69.92,-178.68)    1.14                36
 08/22/2021   14:16:05   (  70.71, -38.75) 08/22/2021   14:17:13  (  70.61, -37.07)   62.72                68
 08/22/2021   15:06:34   ( -70.00, 129.70) 08/22/2021   15:06:51  ( -70.01, 129.69)    2.12                17
 08/22/2021   15:57:18   (  69.87, -62.81) 08/22/2021   15:56:18  (  69.90, -62.82)    3.41                60
 08/25/2021   06:32:47   (  70.09,  78.01) 08/25/2021   06:33:51  (  70.10,  78.06)    2.40                64
 08/25/2021   07:23:28   ( -69.95,-114.46) 08/25/2021   07:23:22  ( -69.94,-114.53)    2.57                 6
 08/25/2021   08:14:05   (  69.46,  53.57) 08/25/2021   08:12:54  (  69.55,  52.58)   39.84                71
 08/27/2021   22:49:41   (  70.05,-166.16) 08/27/2021   22:50:22  (  70.02,-166.17)    2.70                41
 08/27/2021   23:40:22   ( -69.90,   1.38) 08/27/2021   23:39:52  ( -69.92,   1.33)    2.89                30
 08/30/2021   14:16:06   ( -70.90, 140.94) 08/30/2021   14:17:13  ( -70.77, 143.17)   82.75                67
 08/30/2021   15:06:35   (  70.01, -50.33) 08/30/2021   15:06:52  (  70.00, -50.32)    1.12                17
 08/30/2021   15:57:17   ( -69.91, 117.13) 08/30/2021   15:56:22  ( -69.90, 117.17)    2.25                55