Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 2 12.  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)
 02/14/2024   15:42:37   ( -70.23, 120.06) 02/14/2024   15:43:48  ( -70.15, 120.51)   19.12                71
 02/14/2024   16:33:18   (  69.95, -72.20) 02/14/2024   16:33:17  (  69.93, -72.15)    3.09                 1
 02/14/2024   17:23:59   ( -69.82,  95.31) 02/14/2024   17:22:47  ( -69.82,  95.33)    0.44                72
 02/17/2024   07:59:22   ( -69.98,-123.76) 02/17/2024   08:00:17  ( -69.99,-123.83)    3.15                55
 02/17/2024   08:50:06   (  69.86,  43.73) 02/17/2024   08:49:44  (  69.89,  43.67)    3.32                22
 02/17/2024   09:40:34   ( -69.04,-147.77) 02/17/2024   09:39:26  ( -69.11,-149.74)   78.61                68
 02/20/2024   00:16:12   ( -69.95,  -7.92) 02/20/2024   00:16:44  ( -69.97,  -7.98)    2.72                32
 02/20/2024   01:06:56   (  69.84, 159.55) 02/20/2024   01:06:11  (  69.86, 159.51)    2.32                45
 02/22/2024   15:42:26   (  70.35, -60.06) 02/22/2024   15:43:37  (  70.23, -59.35)   29.61                71
 02/22/2024   16:33:02   ( -69.94, 107.89) 02/22/2024   16:33:10  ( -69.96, 107.89)    1.78                 8
 02/22/2024   17:23:46   (  69.83, -84.64) 02/22/2024   17:22:37  (  69.84, -84.62)    1.47                69
 02/25/2024   07:59:10   (  70.04,  56.22) 02/25/2024   08:00:06  (  70.01,  56.24)    2.57                56
 02/25/2024   08:49:51   ( -69.89,-136.23) 02/25/2024   08:49:36  ( -69.91,-136.28)    2.74                15
 02/25/2024   09:40:22   (  69.09,  32.22) 02/25/2024   09:39:14  (  69.18,  30.39)   73.23                68