Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2023 3 2.  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   (  70.09,  68.71) 03/02/2023   07:10:49  (  70.07,  68.65)    3.05                34
 03/02/2023   08:00:57   ( -70.00,-123.83) 03/02/2023   08:00:18  ( -70.01,-123.80)    1.36                39
 03/04/2023   22:36:33   ( -70.64,  16.31) 03/04/2023   22:37:43  ( -70.50,  17.51)   47.11                70
 03/04/2023   23:27:08   (  70.06,-175.47) 03/04/2023   23:27:16  (  70.07,-175.47)    1.89                 8
 03/05/2023   00:17:50   ( -69.97,  -8.01) 03/05/2023   00:16:46  ( -69.96,  -8.00)    1.01                64
 03/07/2023   14:53:18   ( -70.14, 132.86) 03/07/2023   14:54:17  ( -70.14, 132.87)    0.38                59
 03/07/2023   15:44:02   (  70.03, -59.67) 03/07/2023   15:43:44  (  70.04, -59.64)    1.11                18
 03/07/2023   16:34:33   ( -69.36, 108.65) 03/07/2023   16:33:23  ( -69.43, 107.16)   58.57                70
 03/10/2023   07:10:12   ( -70.13,-111.35) 03/10/2023   07:10:44  ( -70.13,-111.27)    3.05                32
 03/10/2023   08:00:55   (  69.97,  56.20) 03/10/2023   08:00:12  (  69.96,  56.14)    2.36                43
 03/12/2023   22:36:27   (  70.39,-163.30) 03/12/2023   22:37:39  (  70.29,-162.78)   22.28                72
 03/12/2023   23:27:05   ( -70.08,   4.50) 03/12/2023   23:27:11  ( -70.07,   4.54)    1.57                 6
 03/13/2023   00:17:49   (  69.97, 171.96) 03/13/2023   00:16:38  (  69.96, 172.03)    2.77                71
 03/15/2023   14:53:15   (  70.14, -47.14) 03/15/2023   14:54:06  (  70.14, -47.11)    1.45                51
 03/15/2023   15:43:57   ( -70.04, 120.33) 03/15/2023   15:43:36  ( -70.04, 120.38)    1.67                21