Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 29.  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)
 04/29/2021   21:58:57   (  70.69,-154.32) 04/29/2021   22:00:07  (  70.61,-153.08)   46.66                70
 04/29/2021   22:49:30   ( -70.14,  13.87) 04/29/2021   22:49:44  ( -70.11,  13.83)    3.22                14
 04/29/2021   23:40:14   (  70.01,-178.62) 04/29/2021   23:39:11  (  70.01,-178.67)    1.81                63
 05/02/2021   14:15:43   (  70.21, -37.79) 05/02/2021   14:16:41  (  70.19, -37.82)    2.06                58
 05/02/2021   15:06:25   ( -70.12, 129.66) 05/02/2021   15:06:10  ( -70.13, 129.74)    3.09                15
 05/02/2021   15:56:57   (  69.36, -61.91) 05/02/2021   15:55:48  (  69.42, -63.60)   66.62                69
 05/05/2021   06:32:38   (  70.14,  78.08) 05/05/2021   06:33:09  (  70.15,  78.00)    2.88                31
 05/05/2021   07:23:20   ( -70.06,-114.47) 05/05/2021   07:22:39  ( -70.04,-114.52)    2.54                41
 05/07/2021   21:58:55   ( -70.51,  25.95) 05/07/2021   22:00:06  ( -70.43,  26.64)   27.35                71
 05/07/2021   22:49:34   (  70.13,-166.15) 05/07/2021   22:49:36  (  70.15,-166.11)    2.68                 2
 05/07/2021   23:40:16   ( -70.04,   1.31) 05/07/2021   23:39:06  ( -70.05,   1.37)    2.57                70
 05/10/2021   14:15:45   ( -70.19, 142.23) 05/10/2021   14:16:37  ( -70.22, 142.21)    3.19                52
 05/10/2021   15:06:29   (  70.07, -50.29) 05/10/2021   15:06:04  (  70.10, -50.30)    3.00                25
 05/10/2021   15:56:55   ( -69.13, 118.39) 05/10/2021   15:55:48  ( -69.23, 116.14)   89.75                67
 05/13/2021   05:42:14   (  71.12,  89.16) 05/13/2021   05:43:20  (  71.03,  91.68)   91.23                66
 05/13/2021   06:32:40   ( -70.18,-102.00) 05/13/2021   06:33:04  ( -70.16,-101.99)    2.17                24
 05/13/2021   07:23:24   (  70.07,  65.48) 05/13/2021   07:22:31  (  70.04,  65.49)    3.03                53