Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 1 8.  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)
 01/10/2021   15:06:08   ( -70.09, 129.68) 01/10/2021   15:06:52  ( -70.09, 129.76)    3.00                44
 01/10/2021   15:56:52   (  69.96, -62.82) 01/10/2021   15:56:20  (  69.93, -62.82)    3.51                32
 01/13/2021   06:32:33   (  70.78,  77.04) 01/13/2021   06:33:41  (  70.68,  78.88)   68.49                68
 01/13/2021   07:23:02   ( -70.01,-114.42) 01/13/2021   07:23:21  ( -70.03,-114.45)    2.34                19
 01/13/2021   08:13:46   (  69.89,  53.06) 01/13/2021   08:12:48  (  69.92,  53.05)    3.42                58
 01/15/2021   22:49:15   (  70.08,-166.07) 01/15/2021   22:50:20  (  70.06,-166.14)    3.00                65
 01/15/2021   23:39:57   ( -69.98,   1.39) 01/15/2021   23:39:49  ( -70.01,   1.42)    3.38                 8
 01/16/2021   00:30:33   (  69.44, 169.49) 01/16/2021   00:29:23  (  69.52, 168.38)   44.14                70
 01/18/2021   15:06:09   (  70.06, -50.27) 01/18/2021   15:06:47  (  70.04, -50.29)    1.72                38
 01/18/2021   15:56:51   ( -69.96, 117.19) 01/18/2021   15:56:17  ( -69.94, 117.20)    2.63                34
 01/21/2021   06:32:31   ( -70.72,-102.86) 01/21/2021   06:33:40  ( -70.57,-101.29)   60.54                69
 01/21/2021   07:23:04   (  70.04,  65.53) 01/21/2021   07:23:15  (  70.02,  65.56)    2.78                11
 01/21/2021   08:13:45   ( -69.89,-126.93) 01/21/2021   08:12:45  ( -69.91,-126.95)    3.02                60