Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 1 13.  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)
 01/13/2021   06:32:33   (  70.80,  77.00) 01/13/2021   06:33:41  (  70.67,  78.85)   69.30                68
 01/13/2021   07:23:02   ( -70.03,-114.46) 01/13/2021   07:23:20  ( -70.06,-114.41)    3.36                18
 01/13/2021   08:13:46   (  69.91,  53.03) 01/13/2021   08:12:48  (  69.90,  53.02)    1.13                58
 01/15/2021   22:49:15   (  70.09,-166.10) 01/15/2021   22:50:19  (  70.10,-166.10)    0.58                64
 01/15/2021   23:39:57   ( -70.01,   1.35) 01/15/2021   23:39:49  ( -69.99,   1.38)    2.67                 8
 01/16/2021   00:30:33   (  69.46, 169.46) 01/16/2021   00:29:22  (  69.55, 168.42)   41.71                71
 01/18/2021   15:06:10   (  70.07, -50.30) 01/18/2021   15:06:47  (  70.08, -50.25)    1.94                37
 01/18/2021   15:56:52   ( -69.98, 117.16) 01/18/2021   15:56:17  ( -69.97, 117.23)    3.59                35
 01/21/2021   06:32:31   ( -70.69,-102.81) 01/21/2021   06:33:40  ( -70.59,-101.25)   58.48                69
 01/21/2021   07:23:03   (  70.00,  65.58) 01/21/2021   07:23:15  (  69.99,  65.52)    2.74                12
 01/21/2021   08:13:45   ( -69.91,-126.96) 01/21/2021   08:12:45  ( -69.88,-127.00)    3.22                60
 01/23/2021   22:49:14   ( -70.10,  13.91) 01/23/2021   22:50:16  ( -70.07,  13.87)    3.02                62
 01/23/2021   23:39:58   (  69.99,-178.62) 01/23/2021   23:39:43  (  69.96,-178.64)    3.18                15
 01/24/2021   00:30:31   ( -69.41, -10.46) 01/24/2021   00:29:20  ( -69.47, -11.68)   48.21                71
 01/26/2021   15:06:09   ( -70.08, 129.71) 01/26/2021   15:06:43  ( -70.09, 129.78)    3.16                34
 01/26/2021   15:56:52   (  69.92, -62.74) 01/26/2021   15:56:11  (  69.92, -62.81)    2.72                41