Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2023 3 1.  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,  68.70) 03/02/2023   07:10:48  (  70.12,  68.72)    2.81                33
 03/02/2023   08:00:57   ( -70.01,-123.84) 03/02/2023   08:00:18  ( -70.00,-123.81)    1.34                39
 03/04/2023   22:36:34   ( -70.65,  16.30) 03/04/2023   22:37:44  ( -70.49,  17.50)   47.62                70
 03/04/2023   23:27:09   (  70.06,-175.48) 03/04/2023   23:27:17  (  70.07,-175.48)    0.10                 8
 03/05/2023   00:17:51   ( -69.97,  -8.02) 03/05/2023   00:16:47  ( -69.95,  -8.01)    2.45                64
 03/07/2023   14:53:18   ( -70.15, 132.85) 03/07/2023   14:54:17  ( -70.13, 132.85)    2.59                59
 03/07/2023   15:44:02   (  70.04, -59.68) 03/07/2023   15:43:44  (  70.02, -59.66)    2.45                18
 03/07/2023   16:34:33   ( -69.37, 108.63) 03/07/2023   16:33:23  ( -69.42, 107.15)   58.47                70
 03/10/2023   07:10:11   ( -70.09,-111.29) 03/10/2023   07:10:44  ( -70.11,-111.30)    1.95                33
 03/10/2023   08:00:55   (  69.98,  56.18) 03/10/2023   08:00:11  (  70.00,  56.19)    1.53                44
 03/12/2023   22:36:27   (  70.40,-163.32) 03/12/2023   22:37:38  (  70.32,-162.74)   23.85                71
 03/12/2023   23:27:04   ( -70.04,   4.56) 03/12/2023   23:27:11  ( -70.04,   4.50)    2.29                 7
 03/13/2023   00:17:48   (  69.94, 172.02) 03/13/2023   00:16:38  (  69.93, 171.99)    1.49                70