Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 1 19.  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)
 01/21/2021   06:32:31   ( -70.75,-102.91) 01/21/2021   06:33:40  ( -70.62,-101.22)   63.80                69
 01/21/2021   07:23:03   (  70.00,  65.58) 01/21/2021   07:23:16  (  70.03,  65.56)    3.09                13
 01/21/2021   08:13:45   ( -69.92,-126.97) 01/21/2021   08:12:46  ( -69.92,-126.96)    0.32                59
 01/23/2021   22:49:14   ( -70.11,  13.89) 01/23/2021   22:50:19  ( -70.08,  13.87)    3.12                65
 01/23/2021   23:39:58   (  69.99,-178.63) 01/23/2021   23:39:46  (  69.98,-178.64)    1.95                12
 01/24/2021   00:30:33   ( -69.53, -10.63) 01/24/2021   00:29:21  ( -69.59, -11.53)   35.66                72
 01/26/2021   15:06:09   ( -70.10, 129.68) 01/26/2021   15:06:48  ( -70.08, 129.75)    3.28                39
 01/26/2021   15:56:52   (  69.93, -62.76) 01/26/2021   15:56:16  (  69.92, -62.84)    3.41                36
 01/29/2021   06:32:31   (  70.66,  77.24) 01/29/2021   06:33:40  (  70.57,  78.70)   54.79                69
 01/29/2021   07:23:03   ( -70.04,-114.46) 01/29/2021   07:23:18  ( -70.02,-114.46)    2.05                15
 01/29/2021   08:13:47   (  69.93,  53.01) 01/29/2021   08:12:45  (  69.91,  53.03)    2.44                62
 01/31/2021   22:49:14   (  70.09,-166.07) 01/31/2021   22:50:16  (  70.12,-166.08)    3.33                62
 01/31/2021   23:39:56   ( -69.98,   1.40) 01/31/2021   23:39:46  ( -70.01,   1.40)    3.09                10
 02/01/2021   00:30:31   (  69.40, 169.57) 02/01/2021   00:29:21  (  69.46, 168.29)   50.48                70