Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 28.  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   (  70.70,-154.33) 04/29/2021   22:00:07  (  70.61,-153.09)   47.01                70
 04/29/2021   22:49:30   ( -70.14,  13.87) 04/29/2021   22:49:43  ( -70.16,  13.90)    2.61                13
 04/29/2021   23:40:14   (  70.02,-178.64) 04/29/2021   23:39:11  (  70.00,-178.68)    2.40                63
 05/02/2021   14:15:43   (  70.21, -37.80) 05/02/2021   14:16:40  (  70.24, -37.75)    3.18                57
 05/02/2021   15:06:25   ( -70.13, 129.65) 05/02/2021   15:06:10  ( -70.13, 129.73)    2.86                15
 05/02/2021   15:56:57   (  69.37, -61.92) 05/02/2021   15:55:48  (  69.41, -63.61)   66.44                69
 05/05/2021   06:32:38   (  70.15,  78.06) 05/05/2021   06:33:09  (  70.14,  77.99)    3.24                31
 05/05/2021   07:23:20   ( -70.06,-114.49) 05/05/2021   07:22:38  ( -70.09,-114.45)    2.80                42
 05/07/2021   21:58:55   ( -70.52,  25.94) 05/07/2021   22:00:06  ( -70.42,  26.63)   28.22                71
 05/07/2021   22:49:34   (  70.15,-166.17) 05/07/2021   22:49:36  (  70.14,-166.13)    1.56                 2
 05/07/2021   23:40:16   ( -70.05,   1.29) 05/07/2021   23:39:06  ( -70.04,   1.36)    3.08                70
 05/10/2021   14:15:45   ( -70.20, 142.21) 05/10/2021   14:16:37  ( -70.20, 142.19)    0.45                52
 05/10/2021   15:06:29   (  70.09, -50.32) 05/10/2021   15:06:04  (  70.09, -50.33)    0.59                25