Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 28.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2024   14:28:30   ( -70.16, 139.10) 08/28/2024   14:29:20  ( -70.18, 139.18)    3.15                50
 08/28/2024   15:19:13   (  70.01, -53.34) 08/28/2024   15:18:48  (  70.02, -53.40)    2.69                25
 08/28/2024   16:09:39   ( -69.06, 115.34) 08/28/2024   16:08:32  ( -69.14, 113.04)   91.98                67
 08/31/2024   06:45:21   ( -70.10,-105.02) 08/31/2024   06:45:49  ( -70.09,-105.05)    1.89                28
 08/31/2024   07:36:05   (  70.00,  62.45) 08/31/2024   07:35:16  (  69.99,  62.44)    1.31                49
 09/02/2024   22:11:34   (  70.32,-156.88) 09/02/2024   22:12:45  (  70.28,-156.53)   13.76                71
 09/02/2024   23:02:13   ( -70.06,  10.84) 09/02/2024   23:02:17  ( -70.06,  10.79)    1.84                 4
 09/02/2024   23:52:57   (  69.96, 178.31) 09/02/2024   23:51:44  (  69.95, 178.28)    1.02                73
 09/05/2024   14:28:23   (  70.13, -40.80) 09/05/2024   14:29:14  (  70.13, -40.84)    1.75                51
 09/05/2024   15:19:05   ( -70.03, 126.67) 09/05/2024   15:18:44  ( -70.02, 126.64)    1.60                21
 09/05/2024   16:09:32   (  69.02, -64.56) 09/05/2024   16:08:26  (  69.08, -66.99)   97.05                66
 09/08/2024   06:45:15   (  70.12,  75.01) 09/08/2024   06:45:40  (  70.09,  75.00)    3.26                25
 09/08/2024   07:35:57   ( -70.02,-117.52) 09/08/2024   07:35:09  ( -70.04,-117.44)    3.66                48
 09/10/2024   22:11:24   ( -70.32,  23.17) 09/10/2024   22:12:35  ( -70.27,  23.52)   14.35                71
 09/10/2024   23:02:05   (  70.07,-169.12) 09/10/2024   23:02:04  (  70.04,-169.16)    3.17                 1
 09/10/2024   23:52:47   ( -69.97,  -1.65) 09/10/2024   23:51:34  ( -69.94,  -1.68)    3.27                73