Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 12 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)
 12/07/2021   07:22:40   (  70.07,  65.54) 12/07/2021   07:23:29  (  70.06,  65.60)    2.47                49
 12/07/2021   08:13:21   ( -69.93,-126.94) 12/07/2021   08:12:59  ( -69.95,-126.92)    2.27                22
 12/07/2021   09:03:48   (  68.91,  41.84) 12/07/2021   09:02:42  (  68.96,  39.40)   97.80                66
 12/09/2021   23:39:32   (  70.02,-178.62) 12/09/2021   23:39:59  (  70.00,-178.61)    2.99                27
 12/10/2021   00:30:13   ( -69.89, -11.09) 12/10/2021   00:29:29  ( -69.89, -11.13)    1.51                44
 12/12/2021   15:05:45   ( -70.42, 129.25) 12/12/2021   15:06:56  ( -70.31, 130.07)   32.82                71
 12/12/2021   15:56:23   (  69.99, -62.77) 12/12/2021   15:56:27  (  69.98, -62.76)    0.87                 4
 12/12/2021   16:47:04   ( -69.85, 104.75) 12/12/2021   16:45:57  ( -69.88, 104.73)    3.29                67
 12/15/2021   07:22:31   ( -70.06,-114.41) 12/15/2021   07:23:29  ( -70.07,-114.40)    0.90                58
 12/15/2021   08:13:15   (  69.95,  53.07) 12/15/2021   08:12:56  (  69.95,  53.09)    1.05                19
 12/15/2021   09:03:45   ( -69.23,-138.56) 12/15/2021   09:02:36  ( -69.30,-140.16)   63.72                69
 12/17/2021   23:39:23   ( -70.03,   1.42) 12/17/2021   23:39:58  ( -70.04,   1.44)    1.37                35
 12/18/2021   00:30:07   (  69.92, 168.90) 12/18/2021   00:29:25  (  69.92, 168.93)    1.14                42
 12/20/2021   15:05:41   (  70.51, -50.86) 12/20/2021   15:06:51  (  70.43, -49.74)   42.62                70
 12/20/2021   15:56:15   ( -70.00, 117.26) 12/20/2021   15:56:27  ( -70.00, 117.27)    0.79                12
 12/20/2021   16:46:59   (  69.89, -75.27) 12/20/2021   16:45:54  (  69.88, -75.25)    0.96                65