Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 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)
 03/27/2025   06:45:24   ( -70.13,-105.04) 03/27/2025   06:45:55  ( -70.11,-105.10)    3.18                31
 03/27/2025   07:36:08   (  70.04,  62.42) 03/27/2025   07:35:22  (  70.01,  62.40)    3.47                46
 03/29/2025   22:11:39   (  70.49,-157.13) 03/29/2025   22:12:50  (  70.36,-156.49)   27.59                71
 03/29/2025   23:02:16   ( -70.11,  10.78) 03/29/2025   23:02:23  ( -70.08,  10.75)    3.17                 7
 03/29/2025   23:52:59   (  69.97, 178.30) 03/29/2025   23:51:50  (  69.97, 178.24)    2.66                69
 04/01/2025   14:28:25   (  70.18, -40.86) 04/01/2025   14:29:19  (  70.20, -40.84)    2.53                54
 04/01/2025   15:19:07   ( -70.06, 126.64) 04/01/2025   15:18:49  ( -70.09, 126.64)    3.69                18
 04/01/2025   16:09:37   (  69.23, -64.84) 04/01/2025   16:08:29  (  69.26, -66.85)   79.24                68
 04/04/2025   06:45:16   (  70.15,  74.97) 04/04/2025   06:45:45  (  70.13,  74.95)    2.52                29
 04/04/2025   07:35:58   ( -70.03,-117.53) 04/04/2025   07:35:15  ( -70.02,-117.56)    1.36                43
 04/06/2025   22:11:28   ( -70.48,  22.93) 04/06/2025   22:12:39  ( -70.37,  23.56)   26.18                71
 04/06/2025   23:02:05   (  70.09,-169.15) 04/06/2025   23:02:08  (  70.09,-169.20)    1.73                 3
 04/06/2025   23:52:48   ( -70.01,  -1.73) 04/06/2025   23:51:38  ( -69.99,  -1.71)    3.12                70