Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 7.  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)
 03/08/2025   14:28:39   ( -70.18, 139.12) 03/08/2025   14:29:37  ( -70.19, 139.13)    1.68                58
 03/08/2025   15:19:23   (  70.05, -53.38) 03/08/2025   15:19:05  (  70.03, -53.46)    3.32                18
 03/08/2025   16:09:53   ( -69.34, 114.98) 03/08/2025   16:08:44  ( -69.43, 113.35)   64.90                69
 03/11/2025   06:45:34   ( -70.17,-105.11) 03/11/2025   06:46:06  ( -70.16,-105.04)    2.87                32
 03/11/2025   07:36:18   (  70.05,  62.39) 03/11/2025   07:35:33  (  70.05,  62.45)    2.46                45
 03/13/2025   22:11:50   (  70.48,-157.14) 03/13/2025   22:13:01  (  70.37,-156.49)   27.19                71
 03/13/2025   23:02:27   ( -70.12,  10.73) 03/13/2025   23:02:34  ( -70.09,  10.75)    3.44                 7
 03/13/2025   23:53:11   (  70.01, 178.21) 03/13/2025   23:52:01  (  69.98, 178.24)    3.18                70
 03/16/2025   14:28:39   (  70.19, -40.91) 03/16/2025   14:29:32  (  70.16, -40.91)    3.18                53
 03/16/2025   15:19:20   ( -70.04, 126.64) 03/16/2025   15:19:02  ( -70.05, 126.57)    3.16                18
 03/16/2025   16:09:49   (  69.13, -64.74) 03/16/2025   16:08:42  (  69.22, -66.91)   86.53                67
 03/19/2025   06:45:32   (  70.12,  74.97) 03/19/2025   06:45:59  (  70.14,  74.95)    2.80                27
 03/19/2025   07:36:14   ( -70.01,-117.55) 03/19/2025   07:35:29  ( -70.04,-117.56)    3.04                45