Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 5 7.  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   21:58:56   ( -70.58,  25.85) 05/07/2021   22:00:07  ( -70.46,  26.82)   38.13                71
 05/07/2021   22:49:33   (  70.08,-166.07) 05/07/2021   22:49:39  (  70.09,-166.08)    0.49                 6
 05/07/2021   23:40:15   ( -70.00,   1.37) 05/07/2021   23:39:09  ( -69.98,   1.40)    3.01                66
 05/10/2021   14:15:44   ( -70.15, 142.29) 05/10/2021   14:16:44  ( -70.14, 142.23)    2.37                60
 05/10/2021   15:06:28   (  70.02, -50.22) 05/10/2021   15:06:11  (  70.03, -50.28)    2.57                17
 05/10/2021   15:57:00   ( -69.41, 118.00) 05/10/2021   15:55:50  ( -69.43, 116.53)   57.75                70
 05/13/2021   06:32:39   ( -70.14,-101.94) 05/13/2021   06:33:14  ( -70.14,-101.89)    1.83                35
 05/13/2021   07:23:23   (  70.02,  65.55) 05/13/2021   07:22:41  (  70.04,  65.60)    2.49                42
 05/15/2021   21:59:00   (  70.59,-154.21) 05/15/2021   22:00:10  (  70.52,-153.10)   41.79                70
 05/15/2021   22:49:34   ( -70.08,  13.92) 05/15/2021   22:49:46  ( -70.09,  13.91)    1.22                12
 05/15/2021   23:40:18   (  69.96,-178.60) 05/15/2021   23:39:13  (  69.98,-178.61)    1.46                65
 05/18/2021   14:15:48   (  70.17, -37.78) 05/18/2021   14:16:47  (  70.18, -37.71)    2.74                59
 05/18/2021   15:06:29   ( -70.02, 129.77) 05/18/2021   15:06:18  ( -70.03, 129.70)    2.82                11
 05/18/2021   15:57:03   (  69.38, -61.98) 05/18/2021   15:55:54  (  69.42, -63.49)   59.55                69