Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 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)
 01/16/2025   22:12:01   ( -70.40,  23.02) 01/16/2025   22:13:13  ( -70.34,  23.49)   18.98                72
 01/16/2025   23:02:42   (  70.13,-169.24) 01/16/2025   23:02:42  (  70.13,-169.17)    2.75                 0
 01/16/2025   23:53:23   ( -70.00,  -1.72) 01/16/2025   23:52:12  ( -70.02,  -1.69)    2.47                71
 01/19/2025   14:28:45   ( -70.18, 139.16) 01/19/2025   14:29:46  ( -70.17, 139.13)    1.98                61
 01/19/2025   15:19:29   (  70.06, -53.35) 01/19/2025   15:19:13  (  70.07, -53.38)    1.28                16
 01/19/2025   16:10:01   ( -69.46, 114.87) 01/19/2025   16:08:51  ( -69.52, 113.50)   53.78                70
 01/22/2025   06:45:33   ( -70.18,-105.04) 01/22/2025   06:46:15  ( -70.19,-104.97)    2.46                42
 01/22/2025   07:36:17   (  70.06,  62.45) 01/22/2025   07:35:42  (  70.08,  62.51)    2.77                35
 01/24/2025   22:11:54   (  71.11,-158.06) 01/24/2025   22:13:00  (  70.98,-155.54)   92.20                66
 01/24/2025   23:02:19   ( -70.14,  10.83) 01/24/2025   23:02:44  ( -70.11,  10.80)    3.40                25
 01/24/2025   23:53:03   (  70.02, 178.32) 01/24/2025   23:52:11  (  70.00, 178.28)    2.79                52
 01/27/2025   14:28:29   (  70.44, -41.17) 01/27/2025   14:29:39  (  70.37, -40.57)   23.72                70
 01/27/2025   15:19:06   ( -70.10, 126.68) 01/27/2025   15:19:12  ( -70.11, 126.68)    0.41                 6
 01/27/2025   16:09:50   (  69.98, -65.83) 01/27/2025   16:08:39  (  69.99, -65.84)    0.85                71