Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 2 18.  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)
 02/20/2025   14:28:36   ( -70.20, 139.13) 02/20/2025   14:29:43  ( -70.20, 139.15)    1.18                67
 02/20/2025   15:19:21   (  70.10, -53.42) 02/20/2025   15:19:10  (  70.10, -53.36)    2.45                11
 02/20/2025   16:09:56   ( -69.67, 114.54) 02/20/2025   16:08:44  ( -69.77, 113.81)   30.00                72
 02/23/2025   06:45:31   ( -70.16,-105.06) 02/23/2025   06:46:10  ( -70.16,-105.04)    1.32                39
 02/23/2025   07:36:15   (  70.02,  62.46) 02/23/2025   07:35:37  (  70.05,  62.45)    2.98                38
 02/25/2025   22:11:52   (  70.58,-157.28) 02/25/2025   22:13:02  (  70.49,-156.29)   38.20                70
 02/25/2025   23:02:26   ( -70.09,  10.81) 02/25/2025   23:02:37  ( -70.11,  10.79)    2.19                11
 02/25/2025   23:53:11   (  70.01, 178.24) 02/25/2025   23:52:04  (  70.00, 178.28)    1.62                67
 02/28/2025   14:28:40   (  70.17, -40.86) 02/28/2025   14:29:33  (  70.18, -40.86)    1.34                53
 02/28/2025   15:19:22   ( -70.09, 126.58) 02/28/2025   15:19:03  ( -70.07, 126.63)    2.80                19
 02/28/2025   16:09:51   (  69.16, -64.76) 02/28/2025   16:08:44  (  69.18, -66.94)   86.04                67
 03/03/2025   06:45:35   (  70.13,  74.96) 03/03/2025   06:45:58  (  70.14,  74.99)    1.48                23
 03/03/2025   07:36:17   ( -70.05,-117.60) 03/03/2025   07:35:28  ( -70.04,-117.53)    3.07                49