Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 18.  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   14:52:35   (  70.12, -47.11) 05/20/2024   14:53:22  (  70.12, -47.18)    2.85                47
 05/20/2024   15:43:17   ( -70.03, 120.33) 05/20/2024   15:42:52  ( -70.01, 120.29)    2.86                25
 05/23/2024   07:09:26   (  70.12,  68.68) 05/23/2024   07:09:49  (  70.14,  68.72)    2.69                23
 05/23/2024   08:00:08   ( -70.03,-123.87) 05/23/2024   07:59:19  ( -70.03,-123.80)    2.58                49
 05/25/2024   22:35:36   ( -70.41,  16.72) 05/25/2024   22:36:47  ( -70.31,  17.21)   20.94                71
 05/25/2024   23:26:16   (  70.08,-175.47) 05/25/2024   23:26:16  (  70.09,-175.47)    0.79                 0
 05/26/2024   00:16:58   ( -70.00,  -8.02) 05/26/2024   00:15:46  ( -69.98,  -7.99)    2.08                72
 05/28/2024   14:52:22   ( -70.18, 132.88) 05/28/2024   14:53:15  ( -70.15, 132.86)    3.10                53
 05/28/2024   15:43:06   (  70.07, -59.64) 05/28/2024   15:42:41  (  70.09, -59.58)    3.36                25
 05/28/2024   16:33:32   ( -69.13, 109.04) 05/28/2024   16:32:25  ( -69.21, 106.86)   86.51                67
 05/31/2024   07:09:10   ( -70.12,-111.24) 05/31/2024   07:09:38  ( -70.14,-111.25)    2.28                28
 05/31/2024   07:59:54   (  70.01,  56.23) 05/31/2024   07:59:05  (  70.02,  56.22)    1.11                49