Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 20.  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)
 05/20/2024   14:52:36   (  70.16, -47.18) 05/20/2024   14:53:22  (  70.14, -47.17)    2.69                46
 05/20/2024   15:43:17   ( -70.03, 120.34) 05/20/2024   15:42:52  ( -70.02, 120.31)    1.62                25
 05/23/2024   07:09:26   (  70.11,  68.69) 05/23/2024   07:09:50  (  70.09,  68.65)    2.73                24
 05/23/2024   08:00:08   ( -70.03,-123.87) 05/23/2024   07:59:19  ( -70.03,-123.80)    2.75                49
 05/25/2024   22:35:36   ( -70.41,  16.71) 05/25/2024   22:36:47  ( -70.31,  17.21)   21.36                71
 05/25/2024   23:26:16   (  70.08,-175.47) 05/25/2024   23:26:16  (  70.09,-175.46)    1.22                 0
 05/26/2024   00:16:58   ( -70.00,  -8.02) 05/26/2024   00:15:46  ( -69.98,  -7.98)    2.50                72
 05/28/2024   14:52:20   ( -70.14, 132.94) 05/28/2024   14:53:14  ( -70.15, 132.86)    3.36                54
 05/28/2024   15:43:05   (  70.07, -59.66) 05/28/2024   15:42:40  (  70.09, -59.58)    3.29                25
 05/28/2024   16:33:31   ( -69.14, 109.02) 05/28/2024   16:32:24  ( -69.21, 106.86)   85.80                67
 05/31/2024   07:09:10   ( -70.14,-111.27) 05/31/2024   07:09:38  ( -70.14,-111.26)    0.72                28
 05/31/2024   07:59:54   (  70.03,  56.21) 05/31/2024   07:59:05  (  70.02,  56.22)    1.37                49
 06/02/2024   22:35:19   (  70.31,-163.05) 06/02/2024   22:36:30  (  70.28,-162.79)   10.24                71
 06/02/2024   23:25:59   ( -70.12,   4.57) 06/02/2024   23:26:01  ( -70.12,   4.61)    1.59                 2
 06/03/2024   00:16:42   (  69.96, 172.13) 06/03/2024   00:15:29  (  69.94, 172.01)    4.73                73