Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 9.  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)
 03/11/2025   06:45:33   ( -70.12,-105.03) 03/11/2025   06:46:06  ( -70.14,-105.06)    3.26                33
 03/11/2025   07:36:18   (  70.05,  62.39) 03/11/2025   07:35:33  (  70.04,  62.43)    1.80                45
 03/13/2025   22:11:49   (  70.42,-157.05) 03/13/2025   22:13:01  (  70.34,-156.54)   21.49                72
 03/13/2025   23:02:27   ( -70.12,  10.73) 03/13/2025   23:02:33  ( -70.12,  10.78)    1.93                 6
 03/13/2025   23:53:11   (  70.01, 178.22) 03/13/2025   23:52:00  (  70.01, 178.27)    1.97                71
 03/16/2025   14:28:39   (  70.18, -40.90) 03/16/2025   14:29:31  (  70.16, -40.91)    2.81                52
 03/16/2025   15:19:20   ( -70.03, 126.64) 03/16/2025   15:19:01  ( -70.05, 126.57)    3.13                19
 03/16/2025   16:09:49   (  69.13, -64.73) 03/16/2025   16:08:42  (  69.16, -66.98)   89.23                67
 03/19/2025   06:45:32   (  70.11,  74.98) 03/19/2025   06:45:58  (  70.11,  74.91)    2.69                26
 03/19/2025   07:36:14   ( -70.01,-117.55) 03/19/2025   07:35:28  ( -70.00,-117.61)    2.37                46
 03/21/2025   22:11:44   ( -70.30,  23.15) 03/21/2025   22:12:56  ( -70.24,  23.35)    9.95                72
 03/21/2025   23:02:26   (  70.10,-169.24) 03/21/2025   23:02:24  (  70.07,-169.25)    3.28                 2
 03/21/2025   23:53:07   ( -69.94,  -1.67) 03/21/2025   23:51:54  ( -69.97,  -1.76)    4.70                73