Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 2 16.  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)
 02/17/2025   22:11:55   ( -71.02,  22.03) 02/17/2025   22:13:02  ( -70.92,  24.33)   84.17                67
 02/17/2025   23:02:24   (  70.09,-169.16) 02/17/2025   23:02:42  (  70.11,-169.23)    3.46                18
 02/17/2025   23:53:05   ( -69.98,  -1.67) 02/17/2025   23:52:12  ( -69.99,  -1.75)    3.68                53
 02/20/2025   14:28:35   ( -70.19, 139.14) 02/20/2025   14:29:43  ( -70.16, 139.09)    3.14                68
 02/20/2025   15:19:20   (  70.09, -53.41) 02/20/2025   15:19:09  (  70.11, -53.34)    3.33                11
 02/20/2025   16:09:56   ( -69.71, 114.48) 02/20/2025   16:08:44  ( -69.73, 113.76)   27.84                72
 02/23/2025   06:45:31   ( -70.15,-105.04) 02/23/2025   06:46:11  ( -70.13,-105.08)    2.88                40
 02/23/2025   07:36:15   (  70.01,  62.48) 02/23/2025   07:35:38  (  70.01,  62.41)    3.05                37
 02/25/2025   22:11:53   (  70.61,-157.33) 02/25/2025   22:13:03  (  70.47,-156.32)   40.61                70
 02/25/2025   23:02:27   ( -70.12,  10.77) 02/25/2025   23:02:38  ( -70.10,  10.77)    2.80                11
 02/25/2025   23:53:11   (  69.99, 178.28) 02/25/2025   23:52:05  (  69.98, 178.25)    1.21                66
 02/28/2025   14:28:41   (  70.18, -40.89) 02/28/2025   14:29:34  (  70.18, -40.86)    1.39                53
 02/28/2025   15:19:22   ( -70.05, 126.63) 02/28/2025   15:19:04  ( -70.07, 126.63)    2.15                18
 02/28/2025   16:09:52   (  69.18, -64.79) 02/28/2025   16:08:44  (  69.24, -66.87)   82.33                68