Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 7 17.  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)
 07/18/2021   21:59:18   (  71.02,-155.01) 07/18/2021   22:00:24  (  70.93,-152.46)   93.02                66
 07/18/2021   22:49:43   ( -70.03,  13.89) 07/18/2021   22:50:08  ( -70.05,  13.87)    1.78                25
 07/18/2021   23:40:27   (  69.92,-178.63) 07/18/2021   23:39:35  (  69.95,-178.63)    3.24                52
 07/21/2021   14:15:56   (  70.16, -37.86) 07/21/2021   14:17:08  (  70.14, -37.75)    5.03                72
 07/21/2021   15:06:37   ( -70.02, 129.68) 07/21/2021   15:06:38  ( -70.03, 129.73)    2.75                 1
 07/21/2021   15:57:19   (  69.80, -62.69) 07/21/2021   15:56:07  (  69.82, -62.93)    9.48                72
 07/24/2021   06:32:49   (  70.05,  78.08) 07/24/2021   06:33:40  (  70.07,  78.02)    2.95                51
 07/24/2021   07:23:31   ( -69.95,-114.46) 07/24/2021   07:23:10  ( -69.96,-114.49)    1.60                21
 07/24/2021   08:13:58   (  68.94,  54.31) 07/24/2021   08:12:52  (  69.02,  51.89)   97.06                66
 07/26/2021   22:49:44   (  70.04,-166.14) 07/26/2021   22:50:11  (  70.04,-166.14)    0.13                27
 07/26/2021   23:40:26   ( -69.94,   1.33) 07/26/2021   23:39:41  ( -69.94,   1.36)    1.25                45
 07/29/2021   14:16:00   ( -70.40, 141.76) 07/29/2021   14:17:12  ( -70.30, 142.46)   28.89                72
 07/29/2021   15:06:39   (  70.04, -50.36) 07/29/2021   15:06:42  (  70.02, -50.29)    3.28                 3
 07/29/2021   15:57:20   ( -69.88, 117.19) 07/29/2021   15:56:13  ( -69.87, 117.13)    2.96                67