Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 4 3.  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)
 04/04/2025   06:45:16   (  70.14,  74.97) 04/04/2025   06:45:50  (  70.13,  74.94)    1.62                34
 04/04/2025   07:35:58   ( -70.03,-117.54) 04/04/2025   07:35:20  ( -70.03,-117.58)    1.59                38
 04/06/2025   22:11:36   ( -70.87,  22.28) 04/06/2025   22:12:44  ( -70.78,  24.11)   67.64                68
 04/06/2025   23:02:07   (  70.11,-169.19) 04/06/2025   23:02:21  (  70.12,-169.21)    1.57                14
 04/06/2025   23:52:49   ( -69.99,  -1.70) 04/06/2025   23:51:51  ( -70.02,  -1.72)    3.10                58
 04/09/2025   14:28:15   ( -70.22, 139.11) 04/09/2025   14:29:24  ( -70.21, 139.14)    1.80                69
 04/09/2025   15:18:58   (  70.09, -53.38) 04/09/2025   15:18:51  (  70.09, -53.38)    0.37                 7
 04/09/2025   16:09:36   ( -69.76, 114.44) 04/09/2025   16:08:24  ( -69.83, 113.88)   22.92                72
 04/12/2025   06:45:05   ( -70.15,-105.00) 04/12/2025   06:45:53  ( -70.16,-105.05)    1.87                48
 04/12/2025   07:35:48   (  70.03,  62.50) 04/12/2025   07:35:20  (  70.04,  62.43)    3.21                28
 04/14/2025   22:11:29   (  71.13,-158.11) 04/14/2025   22:12:35  (  71.02,-155.51)   94.29                66
 04/14/2025   23:01:55   ( -70.16,  10.78) 04/14/2025   23:02:19  ( -70.15,  10.83)    1.69                24
 04/14/2025   23:52:38   (  70.03, 178.28) 04/14/2025   23:51:46  (  70.03, 178.30)    0.82                52