Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 6 27.  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)
 06/27/2021   14:15:53   ( -70.11, 142.25) 06/27/2021   14:17:05  ( -70.13, 142.21)    2.37                72
 06/27/2021   15:06:38   (  70.05, -50.35) 06/27/2021   15:06:32  (  70.03, -50.28)    3.26                 6
 06/27/2021   15:57:17   ( -69.80, 117.34) 06/27/2021   15:56:03  ( -69.86, 117.11)   11.19                74
 06/30/2021   06:32:48   ( -70.08,-101.94) 06/30/2021   06:33:35  ( -70.10,-101.94)    2.29                47
 06/30/2021   07:23:32   (  69.97,  65.53) 06/30/2021   07:23:03  (  69.95,  65.48)    3.32                29
 07/02/2021   21:59:16   (  70.95,-154.87) 07/02/2021   22:00:23  (  70.84,-152.60)   83.55                67
 07/02/2021   22:49:43   ( -70.06,  13.86) 07/02/2021   22:50:05  ( -70.08,  13.90)    2.46                22
 07/02/2021   23:40:27   (  69.95,-178.67) 07/02/2021   23:39:32  (  69.97,-178.60)    3.35                55
 07/05/2021   14:15:55   (  70.14, -37.81) 07/05/2021   14:17:04  (  70.15, -37.75)    2.79                69
 07/05/2021   15:06:37   ( -70.03, 129.67) 07/05/2021   15:06:34  ( -70.04, 129.74)    2.84                 3
 07/05/2021   15:57:17   (  69.72, -62.55) 07/05/2021   15:56:04  (  69.77, -63.00)   18.39                73
 07/08/2021   06:32:49   (  70.06,  78.07) 07/08/2021   06:33:35  (  70.05,  78.00)    2.93                46
 07/08/2021   07:23:31   ( -69.96,-114.45) 07/08/2021   07:23:05  ( -69.95,-114.51)    2.41                26
 07/10/2021   21:59:17   ( -71.03,  24.97) 07/10/2021   22:00:23  ( -70.94,  27.56)   94.25                66
 07/10/2021   22:49:44   (  70.05,-166.13) 07/10/2021   22:50:04  (  70.06,-166.10)    2.35                20
 07/10/2021   23:40:26   ( -69.94,   1.35) 07/10/2021   23:39:34  ( -69.96,   1.39)    3.21                52