Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 31.  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)
 02/01/2025   23:02:09   (  70.12,-169.13) 02/01/2025   23:02:36  (  70.15,-169.13)    2.80                27
 02/01/2025   23:52:50   ( -70.01,  -1.63) 02/01/2025   23:52:06  ( -70.04,  -1.65)    3.46                44
 02/04/2025   14:28:26   ( -70.43, 138.85) 02/04/2025   14:29:37  ( -70.34, 139.37)   22.05                71
 02/04/2025   15:19:07   (  70.12, -53.37) 02/04/2025   15:19:06  (  70.12, -53.30)    2.85                 1
 02/04/2025   16:09:48   ( -70.01, 114.12) 02/04/2025   16:08:36  ( -70.01, 114.19)    2.34                72
 02/07/2025   06:45:18   ( -70.14,-104.94) 02/07/2025   06:46:09  ( -70.15,-105.01)    3.38                51
 02/07/2025   07:36:03   (  70.04,  62.51) 02/07/2025   07:35:36  (  70.04,  62.47)    1.49                27
 02/07/2025   08:26:28   ( -69.08,-128.77) 02/07/2025   08:25:21  ( -69.11,-131.15)   94.41                67
 02/09/2025   22:11:48   (  70.98,-157.86) 02/09/2025   22:12:55  (  70.90,-155.65)   81.01                67
 02/09/2025   23:02:15   ( -70.13,  10.83) 02/09/2025   23:02:37  ( -70.14,  10.86)    1.87                22
 02/09/2025   23:53:00   (  70.04, 178.27) 02/09/2025   23:52:04  (  70.03, 178.34)    3.00                56
 02/12/2025   14:28:29   (  70.17, -40.79) 02/12/2025   14:29:35  (  70.19, -40.82)    2.98                66
 02/12/2025   15:19:10   ( -70.10, 126.64) 02/12/2025   15:19:04  ( -70.09, 126.67)    1.53                 6
 02/12/2025   16:09:48   (  69.64, -65.37) 02/12/2025   16:08:36  (  69.70, -66.23)   33.91                72