Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 5 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)
 05/24/2025   23:02:17   (  70.12,-169.28) 05/24/2025   23:02:00  (  70.12,-169.23)    1.97                17
 05/24/2025   23:52:48   ( -69.47,  -1.00) 05/24/2025   23:51:38  ( -69.56,  -2.38)   54.58                70
 05/27/2025   14:28:28   ( -70.17, 139.09) 05/27/2025   14:29:01  ( -70.16, 139.06)    1.42                33
 05/27/2025   15:19:13   (  70.09, -53.47) 05/27/2025   15:18:28  (  70.07, -53.44)    2.44                45
 05/30/2025   05:54:47   (  70.42,  87.14) 05/30/2025   05:55:57  (  70.38,  87.61)   18.10                70
 05/30/2025   06:45:25   ( -70.14,-105.10) 05/30/2025   06:45:29  ( -70.15,-105.08)    1.29                 4
 05/30/2025   07:36:09   (  70.00,  62.42) 05/30/2025   07:34:57  (  69.99,  62.34)    3.15                72
 06/01/2025   22:11:40   (  70.18,-156.72) 06/01/2025   22:12:28  (  70.18,-156.80)    2.90                48
 06/01/2025   23:02:22   ( -70.11,  10.70) 06/01/2025   23:01:57  ( -70.12,  10.75)    2.00                25
 06/04/2025   13:38:08   ( -71.08, 150.27) 06/04/2025   13:39:15  ( -71.00, 152.66)   86.89                67
 06/04/2025   14:28:37   (  70.16, -40.93) 06/04/2025   14:28:55  (  70.18, -40.91)    2.23                18
 06/04/2025   15:19:19   ( -70.09, 126.50) 06/04/2025   15:18:25  ( -70.07, 126.57)    3.35                54
 06/07/2025   05:54:48   ( -70.23, -92.58) 06/07/2025   05:55:55  ( -70.22, -92.61)    1.45                67
 06/07/2025   06:45:32   (  70.09,  74.94) 06/07/2025   06:45:22  (  70.11,  74.87)    3.48                10
 06/07/2025   07:36:08   ( -69.70,-117.16) 06/07/2025   07:34:56  ( -69.79,-117.95)   31.88                72