Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 15.  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)
 03/16/2025   14:28:39   (  70.19, -40.91) 03/16/2025   14:29:30  (  70.17, -40.90)    2.63                51
 03/16/2025   15:19:20   ( -70.05, 126.62) 03/16/2025   15:19:00  ( -70.05, 126.57)    1.84                20
 03/16/2025   16:09:48   (  69.08, -64.67) 03/16/2025   16:08:42  (  69.11, -67.04)   94.44                66
 03/19/2025   06:45:32   (  70.13,  74.95) 03/19/2025   06:45:56  (  70.11,  74.92)    2.51                24
 03/19/2025   07:36:14   ( -70.03,-117.59) 03/19/2025   07:35:25  ( -70.05,-117.53)    2.93                49
 03/21/2025   22:11:42   ( -70.24,  23.24) 03/21/2025   22:12:53  ( -70.22,  23.33)    3.99                71
 03/21/2025   23:02:25   (  70.09,-169.21) 03/21/2025   23:02:20  (  70.11,-169.19)    2.35                 5
 03/21/2025   23:53:05   ( -69.88,  -1.58) 03/21/2025   23:51:51  ( -69.94,  -1.79)   10.48                74
 03/24/2025   14:28:33   ( -70.15, 139.15) 03/24/2025   14:29:16  ( -70.16, 139.15)    0.95                43
 03/24/2025   15:19:17   (  70.06, -53.40) 03/24/2025   15:18:43  (  70.05, -53.37)    1.82                34
 03/27/2025   05:54:53   (  70.73,  86.70) 03/27/2025   05:56:02  (  70.59,  88.05)   51.67                69
 03/27/2025   06:45:25   ( -70.08,-104.96) 03/27/2025   06:45:39  ( -70.10,-105.03)    3.51                14
 03/27/2025   07:36:09   (  70.00,  62.48) 03/27/2025   07:35:06  (  69.98,  62.44)    1.86                63