Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 2 15.  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)
 02/17/2024   07:59:32   ( -69.99,-123.82) 02/17/2024   08:00:17  ( -69.98,-123.85)    2.27                45
 02/17/2024   08:50:16   (  69.86,  43.68) 02/17/2024   08:49:44  (  69.87,  43.65)    1.59                32
 02/19/2024   23:25:58   (  70.49,-176.16) 02/19/2024   23:27:08  (  70.36,-175.04)   44.19                70
 02/20/2024   00:16:31   ( -69.93,  -7.97) 02/20/2024   00:16:44  ( -69.92,  -8.04)    3.15                13
 02/20/2024   01:07:15   (  69.81, 159.52) 02/20/2024   01:06:11  (  69.81, 159.45)    2.78                64
 02/22/2024   15:42:49   (  70.03, -59.68) 02/22/2024   15:43:39  (  70.03, -59.62)    2.35                50
 02/22/2024   16:33:31   ( -69.94, 107.78) 02/22/2024   16:33:09  ( -69.92, 107.85)    3.50                22
 02/22/2024   17:23:58   (  68.91, -83.44) 02/22/2024   17:22:52  (  68.93, -85.83)   95.33                66
 02/25/2024   07:09:17   ( -70.85,-112.54) 02/25/2024   07:10:24  ( -70.75,-110.31)   82.08                67
 02/25/2024   07:59:46   (  69.95,  56.20) 02/25/2024   08:00:04  (  69.93,  56.13)    2.98                18
 02/25/2024   08:50:28   ( -69.85,-136.34) 02/25/2024   08:49:33  ( -69.88,-136.31)    2.92                55
 02/27/2024   23:26:01   ( -70.05,   4.50) 02/27/2024   23:27:00  ( -70.06,   4.57)    3.36                59
 02/28/2024   00:16:44   (  69.88, 172.05) 02/28/2024   00:16:28  (  69.89, 171.98)    3.20                16
 02/28/2024   01:07:16   ( -69.25, -19.71) 02/28/2024   01:06:06  ( -69.34, -21.13)   56.67                70