Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 5 5.  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)
 05/06/2025   06:45:02   (  70.15,  74.99) 05/06/2025   06:45:42  (  70.15,  74.92)    2.53                40
 05/06/2025   07:35:44   ( -70.05,-117.54) 05/06/2025   07:35:12  ( -70.04,-117.61)    3.20                32
 05/08/2025   22:11:25   ( -70.71,  22.55) 05/08/2025   22:12:35  ( -70.63,  23.87)   49.24                70
 05/08/2025   23:02:00   (  70.13,-169.22) 05/08/2025   23:02:09  (  70.15,-169.20)    1.83                 9
 05/08/2025   23:52:42   ( -70.03,  -1.75) 05/08/2025   23:51:39  ( -70.03,  -1.73)    0.84                63
 05/11/2025   14:28:13   ( -70.23, 139.07) 05/11/2025   14:29:08  ( -70.22, 139.14)    2.89                55
 05/11/2025   15:18:57   (  70.12, -53.45) 05/11/2025   15:18:35  (  70.11, -53.37)    3.14                22
 05/11/2025   16:09:25   ( -69.28, 115.11) 05/11/2025   16:08:17  ( -69.34, 113.21)   74.89                68
 05/14/2025   05:54:45   (  71.17,  85.99) 05/14/2025   05:55:50  (  71.08,  88.69)   97.72                65
 05/14/2025   06:45:10   ( -70.18,-105.09) 05/14/2025   06:45:35  ( -70.15,-105.07)    3.28                25
 05/14/2025   07:35:54   (  70.07,  62.39) 05/14/2025   07:35:02  (  70.04,  62.42)    3.25                52
 05/16/2025   22:11:25   (  70.23,-156.73) 05/16/2025   22:12:31  (  70.21,-156.73)    2.25                66
 05/16/2025   23:02:06   ( -70.08,  10.82) 05/16/2025   23:02:01  ( -70.10,  10.75)    3.42                 5
 05/16/2025   23:52:44   (  69.65, 178.77) 05/16/2025   23:51:33  (  69.71, 177.86)   36.14                71