Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 20.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2025   18:18:29   ( -74.30,  73.72) 09/20/2025   18:18:51  ( -74.32,  73.65)    2.97                22
 09/20/2025   19:09:14   (  74.25,-118.84) 09/20/2025   19:08:10  (  74.23,-118.88)    2.70                64
 09/23/2025   04:40:10   (  74.35,  98.18) 09/23/2025   04:40:21  (  74.33,  98.25)    2.70                11
 09/23/2025   05:30:52   ( -74.26, -94.28) 09/23/2025   05:29:43  ( -74.28, -94.21)    2.53                69
 09/25/2025   14:11:17   (  74.98, -46.26) 09/25/2025   14:12:23  (  74.88, -43.55)   79.38                66
 09/25/2025   15:01:47   ( -74.32, 122.86) 09/25/2025   15:01:55  ( -74.31, 122.76)    3.03                 8
 09/25/2025   15:52:27   (  74.02, -69.08) 09/25/2025   15:51:16  (  74.11, -70.02)   30.35                71
 09/28/2025   00:32:51   ( -74.81, -21.19) 09/28/2025   00:34:00  ( -74.69, -19.46)   52.33                69
 09/28/2025   01:23:27   (  74.32, 147.43) 09/28/2025   01:23:24  (  74.33, 147.38)    1.75                 3
 09/28/2025   02:14:02   ( -73.89, -44.18) 09/28/2025   02:12:52  ( -73.97, -45.77)   49.48                70
 09/30/2025   10:54:23   (  74.43,   4.42) 09/30/2025   10:55:34  (  74.43,   4.52)    2.99                71
 09/30/2025   11:45:05   ( -74.35, 171.95) 09/30/2025   11:44:57  ( -74.33, 171.93)    2.69                 8
 10/02/2025   21:15:59   ( -74.42,  29.06) 10/02/2025   21:17:06  ( -74.41,  29.02)    1.58                67
 10/02/2025   22:06:44   (  74.36,-163.49) 10/02/2025   22:06:24  (  74.36,-163.40)    2.74                20