Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2023 6 24.  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)
 06/24/2023   23:26:08   (  70.03,-175.40) 06/24/2023   23:26:46  (  70.00,-175.46)    3.48                38
 06/25/2023   00:16:50   ( -69.94,  -7.95) 06/25/2023   00:16:15  ( -69.95,  -7.91)    1.71                35
 06/27/2023   14:52:32   ( -70.87, 131.72) 06/27/2023   14:53:39  ( -70.75, 133.87)   79.67                67
 06/27/2023   15:43:01   (  69.98, -59.55) 06/27/2023   15:43:18  (  69.99, -59.60)    2.66                17
 06/27/2023   16:33:43   ( -69.88, 107.91) 06/27/2023   16:32:48  ( -69.88, 107.88)    0.98                55
 06/30/2023   07:09:11   ( -70.09,-111.26) 06/30/2023   07:10:22  ( -70.11,-111.20)    3.05                71
 06/30/2023   07:59:54   (  69.93,  56.29) 06/30/2023   07:59:50  (  69.95,  56.22)    3.23                 4
 06/30/2023   08:50:34   ( -69.73,-136.09) 06/30/2023   08:49:21  ( -69.79,-136.37)   12.48                73
 07/02/2023   23:26:03   ( -70.06,   4.57) 07/02/2023   23:26:53  ( -70.04,   4.58)    1.95                50
 07/03/2023   00:16:47   (  69.95, 172.03) 07/03/2023   00:16:20  (  69.93, 172.07)    2.93                27
 07/03/2023   01:07:12   ( -68.95, -19.21) 07/03/2023   01:06:05  ( -69.00, -21.55)   93.35                67
 07/05/2023   15:42:56   ( -70.03, 120.39) 07/05/2023   15:43:23  ( -70.04, 120.46)    3.37                27
 07/05/2023   16:33:39   (  69.87, -72.07) 07/05/2023   16:32:51  (  69.88, -72.13)    2.12                48