Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 12 19.  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, -50.93) 12/20/2021   15:06:52  (  70.40, -49.79)   45.58                70
 12/20/2021   15:56:15   ( -70.00, 117.25) 12/20/2021   15:56:27  ( -70.01, 117.28)    2.24                12
 12/20/2021   16:46:59   (  69.87, -75.26) 12/20/2021   16:45:55  (  69.85, -75.29)    2.73                64
 12/23/2021   07:22:25   (  70.10,  65.56) 12/23/2021   07:23:25  (  70.08,  65.63)    3.41                60
 12/23/2021   08:13:06   ( -69.97,-126.92) 12/23/2021   08:12:55  ( -69.97,-126.89)    1.22                11
 12/23/2021   09:03:40   (  69.31,  41.35) 12/23/2021   09:02:31  (  69.37,  39.93)   55.97                69
 12/25/2021   23:39:16   (  70.02,-178.54) 12/25/2021   23:39:54  (  70.03,-178.56)    1.25                38
 12/26/2021   00:29:58   ( -69.94, -11.09) 12/26/2021   00:29:24  ( -69.92, -11.08)    1.68                34
 12/28/2021   15:05:37   ( -70.80, 128.72) 12/28/2021   15:06:45  ( -70.68, 130.63)   71.32                68
 12/28/2021   15:56:08   (  70.00, -62.72) 12/28/2021   15:56:22  (  70.02, -62.69)    2.83                14
 12/28/2021   16:46:50   ( -69.91, 104.73) 12/28/2021   16:45:52  ( -69.92, 104.80)    2.63                58
 12/31/2021   07:22:16   ( -70.09,-114.38) 12/31/2021   07:23:24  ( -70.07,-114.38)    2.51                68
 12/31/2021   08:13:00   (  69.98,  53.10) 12/31/2021   08:12:51  (  69.96,  53.10)    2.91                 9
 12/31/2021   09:03:37   ( -69.63,-139.06) 12/31/2021   09:02:24  ( -69.69,-139.64)   23.49                73