Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 6.  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)
 03/08/2025   14:28:39   ( -70.17, 139.13) 03/08/2025   14:29:37  ( -70.20, 139.14)    3.42                58
 03/08/2025   15:19:24   (  70.09, -53.45) 03/08/2025   15:19:04  (  70.09, -53.37)    2.99                20
 03/08/2025   16:09:54   ( -69.38, 114.92) 03/08/2025   16:08:44  ( -69.43, 113.36)   61.53                70
 03/11/2025   06:45:34   ( -70.16,-105.09) 03/11/2025   06:46:06  ( -70.16,-105.04)    1.95                32
 03/11/2025   07:36:18   (  70.04,  62.40) 03/11/2025   07:35:33  (  70.05,  62.45)    2.03                45
 03/13/2025   22:11:50   (  70.47,-157.12) 03/13/2025   22:13:01  (  70.35,-156.51)   26.30                71
 03/13/2025   23:02:27   ( -70.11,  10.75) 03/13/2025   23:02:33  ( -70.14,  10.81)    3.35                 6
 03/13/2025   23:53:11   (  70.00, 178.23) 03/13/2025   23:52:01  (  69.97, 178.22)    3.55                70
 03/16/2025   14:28:39   (  70.18, -40.89) 03/16/2025   14:29:31  (  70.18, -40.87)    1.27                52
 03/16/2025   15:19:21   ( -70.08, 126.58) 03/16/2025   15:19:01  ( -70.08, 126.61)    1.48                20
 03/16/2025   16:09:49   (  69.12, -64.72) 03/16/2025   16:08:42  (  69.19, -66.95)   88.46                67
 03/19/2025   06:45:33   (  70.15,  74.91) 03/19/2025   06:45:58  (  70.15,  74.96)    2.30                25
 03/19/2025   07:36:15   ( -70.05,-117.61) 03/19/2025   07:35:28  ( -70.04,-117.55)    2.41                47