Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2023 2 28.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 03/02/2023   07:10:15   (  70.10,  68.71) 03/02/2023   07:10:48  (  70.12,  68.72)    2.68                33
 03/02/2023   08:00:57   ( -70.00,-123.84) 03/02/2023   08:00:18  ( -70.00,-123.81)    1.01                39
 03/04/2023   22:36:32   ( -70.59,  16.38) 03/04/2023   22:37:43  ( -70.48,  17.48)   42.50                71
 03/04/2023   23:27:08   (  70.06,-175.48) 03/04/2023   23:27:16  (  70.05,-175.50)    1.87                 8
 03/05/2023   00:17:50   ( -69.97,  -8.02) 03/05/2023   00:16:45  ( -69.99,  -7.95)    3.41                65
 03/07/2023   14:53:18   ( -70.15, 132.85) 03/07/2023   14:54:16  ( -70.15, 132.88)    1.43                58
 03/07/2023   15:44:02   (  70.05, -59.68) 03/07/2023   15:43:43  (  70.04, -59.62)    2.21                19
 03/07/2023   16:34:32   ( -69.31, 108.71) 03/07/2023   16:33:23  ( -69.38, 107.10)   63.34                69
 03/10/2023   07:10:11   ( -70.09,-111.29) 03/10/2023   07:10:43  ( -70.10,-111.30)    1.13                32
 03/10/2023   08:00:55   (  69.99,  56.17) 03/10/2023   08:00:10  (  69.99,  56.19)    0.76                45
 03/12/2023   22:36:26   (  70.36,-163.25) 03/12/2023   22:37:37  (  70.28,-162.78)   19.60                71
 03/12/2023   23:27:04   ( -70.05,   4.55) 03/12/2023   23:27:09  ( -70.07,   4.54)    2.10                 5
 03/13/2023   00:17:48   (  69.94, 172.01) 03/13/2023   00:16:36  (  69.95, 172.02)    0.85                72