Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 4 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)
 04/19/2021   06:32:32   (  70.17,  78.09) 04/19/2021   06:33:18  (  70.19,  78.07)    3.14                46
 04/19/2021   07:23:14   ( -70.08,-114.46) 04/19/2021   07:22:48  ( -70.08,-114.45)    0.44                26
 04/21/2021   21:59:00   ( -71.10,  25.03) 04/21/2021   22:00:06  ( -71.00,  27.51)   90.19                66
 04/21/2021   22:49:28   (  70.14,-166.11) 04/21/2021   22:49:47  (  70.12,-166.15)    2.77                19
 04/21/2021   23:40:10   ( -70.06,   1.34) 04/21/2021   23:39:16  ( -70.07,   1.41)    3.10                54
 04/24/2021   14:15:39   ( -70.19, 142.27) 04/24/2021   14:16:48  ( -70.22, 142.22)    3.25                69
 04/24/2021   15:06:24   (  70.13, -50.32) 04/24/2021   15:06:15  (  70.10, -50.30)    2.77                 9
 04/24/2021   15:57:01   ( -69.77, 117.53) 04/24/2021   15:55:48  ( -69.83, 116.96)   22.78                73
 04/27/2021   06:32:34   ( -70.17,-101.94) 04/27/2021   06:33:15  ( -70.20,-101.93)    2.32                41
 04/27/2021   07:23:18   (  70.06,  65.54) 04/27/2021   07:22:42  (  70.08,  65.55)    2.28                36
 04/29/2021   21:58:57   (  70.73,-154.38) 04/29/2021   22:00:07  (  70.60,-153.10)   49.22                70
 04/29/2021   22:49:30   ( -70.16,  13.84) 04/29/2021   22:49:43  ( -70.17,  13.91)    2.69                13
 04/29/2021   23:40:14   (  70.05,-178.68) 04/29/2021   23:39:10  (  70.05,-178.61)    2.42                64