Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 2 19.  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   14:28:35   ( -70.19, 139.14) 02/20/2025   14:29:43  ( -70.16, 139.09)    3.17                68
 02/20/2025   15:19:20   (  70.09, -53.40) 02/20/2025   15:19:10  (  70.06, -53.41)    3.22                10
 02/20/2025   16:09:56   ( -69.71, 114.48) 02/20/2025   16:08:44  ( -69.73, 113.76)   27.93                72
 02/23/2025   06:45:31   ( -70.15,-105.04) 02/23/2025   06:46:11  ( -70.12,-105.08)    3.13                40
 02/23/2025   07:36:15   (  70.01,  62.49) 02/23/2025   07:35:38  (  70.02,  62.41)    3.13                37
 02/25/2025   22:11:53   (  70.62,-157.34) 02/25/2025   22:13:03  (  70.48,-156.31)   40.93                70
 02/25/2025   23:02:26   ( -70.07,  10.84) 02/25/2025   23:02:38  ( -70.09,  10.76)    3.54                12
 02/25/2025   23:53:11   (  69.99, 178.27) 02/25/2025   23:52:05  (  69.98, 178.25)    0.97                66
 02/28/2025   14:28:41   (  70.19, -40.90) 02/28/2025   14:29:34  (  70.18, -40.86)    2.34                53
 02/28/2025   15:19:22   ( -70.07, 126.61) 02/28/2025   15:19:04  ( -70.07, 126.62)    0.88                18
 02/28/2025   16:09:52   (  69.19, -64.80) 02/28/2025   16:08:44  (  69.24, -66.86)   81.64                68
 03/03/2025   06:45:34   (  70.10,  75.01) 03/03/2025   06:45:59  (  70.11,  74.94)    2.81                25
 03/03/2025   07:36:16   ( -70.02,-117.55) 03/03/2025   07:35:29  ( -70.00,-117.58)    1.85                47