Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 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)
 03/05/2025   22:11:52   ( -70.59,  22.70) 03/05/2025   22:13:03  ( -70.49,  23.69)   38.33                71
 03/05/2025   23:02:29   (  70.09,-169.21) 03/05/2025   23:02:35  (  70.12,-169.21)    2.93                 6
 03/05/2025   23:53:11   ( -70.02,  -1.78) 03/05/2025   23:52:05  ( -70.00,  -1.74)    2.32                66
 03/08/2025   14:28:39   ( -70.16, 139.15) 03/08/2025   14:29:38  ( -70.16, 139.08)    2.66                59
 03/08/2025   15:19:24   (  70.08, -53.43) 03/08/2025   15:19:05  (  70.05, -53.43)    3.51                19
 03/08/2025   16:09:54   ( -69.37, 114.94) 03/08/2025   16:08:45  ( -69.39, 113.30)   64.15                69
 03/11/2025   06:45:33   ( -70.15,-105.08) 03/11/2025   06:46:05  ( -70.17,-105.03)    2.59                32
 03/11/2025   07:36:17   (  70.03,  62.41) 03/11/2025   07:35:32  (  70.06,  62.46)    3.39                45
 03/13/2025   22:11:50   (  70.46,-157.11) 03/13/2025   22:13:01  (  70.36,-156.50)   25.71                71
 03/13/2025   23:02:27   ( -70.11,  10.76) 03/13/2025   23:02:34  ( -70.09,  10.74)    2.41                 7
 03/13/2025   23:53:11   (  69.99, 178.24) 03/13/2025   23:52:01  (  69.97, 178.23)    2.47                70
 03/16/2025   14:28:39   (  70.17, -40.89) 03/16/2025   14:29:31  (  70.18, -40.87)    1.04                52
 03/16/2025   15:19:21   ( -70.07, 126.58) 03/16/2025   15:19:01  ( -70.08, 126.61)    1.28                20