Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 11 6.  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)
 11/07/2021   22:49:19   ( -70.43,  13.33) 11/07/2021   22:50:30  ( -70.35,  14.26)   35.70                71
 11/07/2021   23:39:56   (  69.95,-178.62) 11/07/2021   23:40:02  (  69.97,-178.64)    2.58                 6
 11/08/2021   00:30:38   ( -69.86, -11.16) 11/08/2021   00:29:32  ( -69.86, -11.16)    0.08                66
 11/10/2021   15:06:04   ( -70.04, 129.72) 11/10/2021   15:07:03  ( -70.03, 129.68)    1.73                59
 11/10/2021   15:56:48   (  69.93, -62.81) 11/10/2021   15:56:30  (  69.92, -62.82)    1.04                18
 11/10/2021   16:47:19   ( -69.26, 105.49) 11/10/2021   16:46:09  ( -69.32, 103.99)   59.70                70
 11/13/2021   07:22:57   ( -70.02,-114.47) 11/13/2021   07:23:31  ( -70.03,-114.44)    1.73                34
 11/13/2021   08:13:41   (  69.91,  53.00) 11/13/2021   08:12:58  (  69.92,  53.05)    2.24                43
 11/15/2021   22:49:15   (  70.47,-166.72) 11/15/2021   22:50:25  (  70.34,-165.74)   39.45                70
 11/15/2021   23:39:49   ( -69.95,   1.41) 11/15/2021   23:40:00  ( -69.96,   1.36)    2.33                11
 11/16/2021   00:30:33   (  69.85, 168.87) 11/16/2021   00:29:27  (  69.85, 168.84)    1.30                66
 11/18/2021   15:06:00   (  70.04, -50.26) 11/18/2021   15:06:58  (  70.04, -50.28)    0.69                58
 11/18/2021   15:56:42   ( -69.94, 117.21) 11/18/2021   15:56:28  ( -69.94, 117.21)    0.18                14
 11/18/2021   16:47:14   (  69.20, -74.41) 11/18/2021   16:46:05  (  69.27, -76.05)   65.38                69