Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 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)
 01/21/2024   15:43:03   (  70.00, -59.74) 01/21/2024   15:43:49  (  69.99, -59.68)    3.12                46
 01/21/2024   16:33:44   ( -69.87, 107.78) 01/21/2024   16:33:19  ( -69.87, 107.80)    0.81                25
 01/24/2024   07:09:28   ( -70.98,-112.82) 01/24/2024   07:10:34  ( -70.90,-110.09)   99.46                66
 01/24/2024   07:59:54   (  69.91,  56.18) 01/24/2024   08:00:17  (  69.91,  56.11)    2.81                23
 01/24/2024   08:50:36   ( -69.83,-136.38) 01/24/2024   08:49:46  ( -69.86,-136.33)    3.31                50
 01/26/2024   23:26:04   ( -70.11,   4.36) 01/26/2024   23:27:15  ( -70.08,   4.59)    9.50                71
 01/27/2024   00:16:46   (  69.89, 172.01) 01/27/2024   00:16:43  (  69.92, 172.00)    3.08                 3
 01/27/2024   01:07:27   ( -69.75, -20.47) 01/27/2024   01:06:14  ( -69.75, -20.59)    4.43                73
 01/29/2024   15:42:54   ( -69.99, 120.33) 01/29/2024   15:43:42  ( -70.00, 120.36)    1.51                48
 01/29/2024   16:33:38   (  69.88, -72.19) 01/29/2024   16:33:09  (  69.88, -72.15)    1.67                29
 02/01/2024   07:09:17   (  70.82,  67.49) 02/01/2024   07:10:24  (  70.75,  69.73)   82.13                67
 02/01/2024   07:59:44   ( -69.94,-123.80) 02/01/2024   08:00:07  ( -69.93,-123.84)    1.47                23
 02/01/2024   08:50:28   (  69.82,  43.68) 02/01/2024   08:49:34  (  69.81,  43.65)    1.61                54