Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 9 24.  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)
 09/27/2025   06:45:36   (  70.09,  74.92) 09/27/2025   06:46:19  (  70.09,  74.94)    0.65                43
 09/27/2025   07:36:17   ( -69.97,-117.58) 09/27/2025   07:35:49  ( -69.98,-117.59)    1.22                28
 09/29/2025   22:12:00   ( -71.07,  21.81) 09/29/2025   22:13:06  ( -70.95,  24.46)   96.63                66
 09/29/2025   23:02:27   (  70.05,-169.23) 09/29/2025   23:02:48  (  70.03,-169.27)    2.48                21
 09/29/2025   23:53:08   ( -69.93,  -1.73) 09/29/2025   23:52:18  ( -69.92,  -1.79)    2.35                50
 10/02/2025   14:28:37   ( -70.26, 138.92) 10/02/2025   14:29:48  ( -70.20, 139.22)   12.69                71
 10/02/2025   15:19:19   (  70.02, -53.40) 10/02/2025   15:19:16  (  70.04, -53.37)    2.69                 3
 10/02/2025   16:10:00   ( -69.90, 114.10) 10/02/2025   16:08:47  ( -69.88, 114.04)    3.19                73
 10/05/2025   06:45:26   ( -70.08,-105.02) 10/05/2025   06:46:18  ( -70.07,-105.08)    2.76                52
 10/05/2025   07:36:11   (  70.00,  62.41) 10/05/2025   07:35:44  (  70.01,  62.48)    2.88                27
 10/05/2025   08:26:36   ( -69.03,-128.87) 10/05/2025   08:25:29  ( -69.08,-131.15)   90.63                67
 10/07/2025   22:11:54   (  71.09,-158.18) 10/07/2025   22:13:00  (  70.98,-155.47)   98.77                66
 10/07/2025   23:02:18   ( -70.07,  10.78) 10/07/2025   23:02:45  ( -70.06,  10.79)    1.64                27
 10/07/2025   23:53:02   (  69.94, 178.28) 10/07/2025   23:52:12  (  69.94, 178.27)    0.50                50