Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 12 20.  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)
 12/20/2021   15:05:42   (  70.55, -50.92) 12/20/2021   15:06:52  (  70.41, -49.79)   45.07                70
 12/20/2021   15:56:15   ( -69.99, 117.26) 12/20/2021   15:56:27  ( -70.02, 117.29)    3.10                12
 12/20/2021   16:46:58   (  69.87, -75.25) 12/20/2021   16:45:54  (  69.86, -75.29)    1.85                64
 12/23/2021   07:22:25   (  70.10,  65.57) 12/23/2021   07:23:25  (  70.08,  65.63)    2.76                60
 12/23/2021   08:13:06   ( -69.96,-126.91) 12/23/2021   08:12:55  ( -69.97,-126.89)    1.43                11
 12/23/2021   09:03:40   (  69.31,  41.35) 12/23/2021   09:02:31  (  69.37,  39.93)   56.32                69
 12/25/2021   23:39:16   (  70.02,-178.53) 12/25/2021   23:39:54  (  70.02,-178.57)    1.74                38
 12/26/2021   00:29:58   ( -69.93, -11.08) 12/26/2021   00:29:24  ( -69.92, -11.09)    1.93                34
 12/28/2021   15:05:37   ( -70.79, 128.72) 12/28/2021   15:06:45  ( -70.67, 130.61)   70.59                68
 12/28/2021   15:56:08   (  70.00, -62.71) 12/28/2021   15:56:22  (  70.01, -62.71)    1.54                14
 12/28/2021   16:46:50   ( -69.91, 104.74) 12/28/2021   16:45:52  ( -69.90, 104.78)    1.62                58
 12/31/2021   07:22:16   ( -70.09,-114.37) 12/31/2021   07:23:23  ( -70.10,-114.34)    1.57                67
 12/31/2021   08:13:00   (  69.98,  53.11) 12/31/2021   08:12:50  (  69.98,  53.14)    1.63                10
 12/31/2021   09:03:35   ( -69.57,-138.97) 12/31/2021   09:02:23  ( -69.66,-139.67)   28.83                72
 01/02/2022   23:39:07   ( -70.07,   1.44) 01/02/2022   23:39:50  ( -70.06,   1.50)    2.24                43
 01/03/2022   00:29:51   (  69.96, 168.92) 01/03/2022   00:29:17  (  69.95, 168.98)    2.79                34