Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 15.  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)
 06/17/2024   14:27:52   (  70.13, -40.89) 06/17/2024   14:28:42  (  70.15, -40.94)    3.17                50
 06/17/2024   15:18:34   ( -70.06, 126.55) 06/17/2024   15:18:12  ( -70.03, 126.52)    3.09                22
 06/20/2024   05:54:21   ( -71.02, -93.86) 06/20/2024   05:55:28  ( -70.89, -91.60)   83.27                67
 06/20/2024   06:44:50   (  70.10,  74.92) 06/20/2024   06:45:08  (  70.08,  74.85)    3.53                18
 06/20/2024   07:35:32   ( -70.02,-117.64) 06/20/2024   07:34:37  ( -70.02,-117.61)    1.22                55
 06/22/2024   22:11:04   ( -70.21,  23.22) 06/22/2024   22:12:05  ( -70.20,  23.26)    1.92                61
 06/22/2024   23:01:48   (  70.08,-169.28) 06/22/2024   23:01:32  (  70.09,-169.25)    1.51                16
 06/22/2024   23:52:20   ( -69.47,  -1.05) 06/22/2024   23:51:10  ( -69.53,  -2.38)   52.33                70
 06/25/2024   14:28:01   ( -70.14, 139.09) 06/25/2024   14:28:30  ( -70.12, 139.04)    3.02                29
 06/25/2024   15:18:45   (  70.01, -53.41) 06/25/2024   15:17:57  (  70.01, -53.47)    2.38                48
 06/28/2024   05:54:16   (  70.22,  87.41) 06/28/2024   05:55:22  (  70.22,  87.46)    1.85                66
 06/28/2024   06:44:58   ( -70.13,-105.13) 06/28/2024   06:44:52  ( -70.11,-105.07)    2.82                 6
 06/28/2024   07:35:35   (  69.64,  62.91) 06/28/2024   07:34:24  (  69.72,  62.03)   35.29                71