Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 5 5.  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)
 05/07/2021   21:58:54   ( -70.50,  25.97) 05/07/2021   22:00:06  ( -70.39,  26.59)   25.80                72
 05/07/2021   22:49:33   (  70.11,-166.12) 05/07/2021   22:49:36  (  70.12,-166.15)    1.81                 3
 05/07/2021   23:40:15   ( -70.03,   1.33) 05/07/2021   23:39:06  ( -70.01,   1.32)    2.22                69
 05/10/2021   14:15:45   ( -70.23, 142.17) 05/10/2021   14:16:36  ( -70.23, 142.24)    2.98                51
 05/10/2021   15:06:29   (  70.11, -50.34) 05/10/2021   15:06:03  (  70.13, -50.27)    3.63                26
 05/10/2021   15:56:55   ( -69.17, 118.34) 05/10/2021   15:55:48  ( -69.19, 116.09)   88.87                67
 05/13/2021   05:42:15   (  71.15,  89.11) 05/13/2021   05:43:21  (  71.00,  91.64)   92.55                66
 05/13/2021   06:32:40   ( -70.16,-101.98) 05/13/2021   06:33:04  ( -70.18,-101.95)    2.26                24
 05/13/2021   07:23:24   (  70.05,  65.51) 05/13/2021   07:22:31  (  70.07,  65.53)    2.84                53
 05/15/2021   21:58:54   (  70.25,-153.66) 05/15/2021   22:00:02  (  70.23,-153.64)    2.37                68
 05/15/2021   22:49:35   ( -70.10,  13.88) 05/15/2021   22:49:32  ( -70.13,  13.85)    2.90                 3
 05/15/2021   23:40:15   (  69.78,-178.32) 05/15/2021   23:39:03  (  69.79,-178.97)   25.12                72
 05/18/2021   14:15:48   (  70.20, -37.81) 05/18/2021   14:16:29  (  70.17, -37.84)    3.06                41
 05/18/2021   15:06:30   ( -70.10, 129.65) 05/18/2021   15:05:59  ( -70.07, 129.64)    3.35                31