Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 4.  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)
 03/05/2025   22:11:53   ( -70.63,  22.63) 03/05/2025   22:13:03  ( -70.51,  23.71)   42.15                70
 03/05/2025   23:02:29   (  70.08,-169.19) 03/05/2025   23:02:36  (  70.07,-169.27)    2.97                 7
 03/05/2025   23:53:11   ( -70.00,  -1.76) 03/05/2025   23:52:05  ( -70.02,  -1.72)    2.39                66
 03/08/2025   14:28:39   ( -70.19, 139.09) 03/08/2025   14:29:37  ( -70.17, 139.10)    2.71                58
 03/08/2025   15:19:23   (  70.07, -53.41) 03/08/2025   15:19:04  (  70.06, -53.41)    0.71                19
 03/08/2025   16:09:53   ( -69.36, 114.96) 03/08/2025   16:08:44  ( -69.40, 113.32)   64.33                69
 03/11/2025   06:45:33   ( -70.14,-105.06) 03/11/2025   06:46:06  ( -70.12,-105.09)    2.07                33
 03/11/2025   07:36:17   (  70.02,  62.43) 03/11/2025   07:35:33  (  70.01,  62.40)    1.51                44
 03/13/2025   22:11:50   (  70.45,-157.10) 03/13/2025   22:13:01  (  70.36,-156.50)   24.53                71
 03/13/2025   23:02:27   ( -70.09,  10.78) 03/13/2025   23:02:34  ( -70.09,  10.75)    1.25                 7
 03/13/2025   23:53:11   (  69.98, 178.26) 03/13/2025   23:52:01  (  69.98, 178.23)    1.15                70
 03/16/2025   14:28:39   (  70.16, -40.87) 03/16/2025   14:29:31  (  70.18, -40.88)    1.65                52
 03/16/2025   15:19:21   ( -70.06, 126.60) 03/16/2025   15:19:01  ( -70.07, 126.61)    1.54                20