Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 16.  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   (  70.14, -40.89) 06/17/2024   14:28:42  (  70.15, -40.95)    2.54                50
 06/17/2024   15:18:34   ( -70.06, 126.54) 06/17/2024   15:18:11  ( -70.08, 126.59)    2.94                23
 06/20/2024   05:54:21   ( -71.02, -93.87) 06/20/2024   05:55:28  ( -70.89, -91.60)   83.71                67
 06/20/2024   06:44:50   (  70.11,  74.92) 06/20/2024   06:45:07  (  70.14,  74.93)    3.38                17
 06/20/2024   07:35:32   ( -70.03,-117.65) 06/20/2024   07:34:37  ( -70.02,-117.61)    1.99                55
 06/22/2024   22:11:04   ( -70.21,  23.21) 06/22/2024   22:12:05  ( -70.20,  23.26)    2.87                61
 06/22/2024   23:01:48   (  70.09,-169.29) 06/22/2024   23:01:32  (  70.09,-169.25)    1.60                16
 06/22/2024   23:52:20   ( -69.48,  -1.06) 06/22/2024   23:51:10  ( -69.53,  -2.38)   51.74                70
 06/25/2024   14:28:01   ( -70.15, 139.08) 06/25/2024   14:28:30  ( -70.12, 139.04)    3.27                29
 06/25/2024   15:18:45   (  70.02, -53.43) 06/25/2024   15:17:57  (  70.01, -53.47)    2.01                48
 06/28/2024   05:54:16   (  70.23,  87.39) 06/28/2024   05:55:22  (  70.23,  87.47)    2.80                66
 06/28/2024   06:44:57   ( -70.09,-105.07) 06/28/2024   06:44:52  ( -70.12,-105.06)    3.56                 5
 06/28/2024   07:35:35   (  69.65,  62.90) 06/28/2024   07:34:24  (  69.73,  62.05)   34.15                71