Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 10 3.  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)
 10/04/2021   06:32:46   ( -70.66,-102.88) 10/04/2021   06:33:55  ( -70.58,-101.28)   59.83                69
 10/04/2021   07:23:19   (  69.97,  65.52) 10/04/2021   07:23:31  (  69.99,  65.51)    2.08                12
 10/04/2021   08:14:01   ( -69.88,-127.03) 10/04/2021   08:13:01  ( -69.87,-127.02)    1.35                60
 10/06/2021   22:49:29   ( -70.08,  13.82) 10/06/2021   22:50:34  ( -70.08,  13.88)    2.40                65
 10/06/2021   23:40:12   (  69.91,-178.62) 10/06/2021   23:40:02  (  69.93,-178.69)    3.44                10
 10/07/2021   00:30:48   ( -69.50, -10.70) 10/07/2021   00:29:36  ( -69.60, -11.52)   33.48                72
 10/09/2021   15:06:22   ( -70.02, 129.69) 10/09/2021   15:07:05  ( -70.02, 129.67)    0.86                43
 10/09/2021   15:57:06   (  69.91, -62.84) 10/09/2021   15:56:32  (  69.92, -62.83)    1.28                34
 10/12/2021   06:32:46   (  70.80,  76.91) 10/12/2021   06:33:54  (  70.66,  78.86)   72.84                68
 10/12/2021   07:23:15   ( -70.01,-114.53) 10/12/2021   07:23:34  ( -70.01,-114.47)    2.38                19
 10/12/2021   08:13:58   (  69.85,  53.02) 10/12/2021   08:13:02  (  69.85,  52.95)    2.70                56
 10/14/2021   22:49:26   (  70.06,-166.15) 10/14/2021   22:50:35  (  70.04,-166.18)    2.86                69
 10/14/2021   23:40:08   ( -69.96,   1.33) 10/14/2021   23:40:05  ( -69.93,   1.30)    2.96                 3
 10/15/2021   00:30:47   (  69.59, 169.18) 10/15/2021   00:29:35  (  69.66, 168.57)   24.79                72