Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 13.  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)
 09/15/2025   21:35:12   ( -74.33,  24.46) 09/15/2025   21:35:46  ( -74.33,  24.55)    2.64                34
 09/15/2025   22:25:56   (  74.24,-167.99) 09/15/2025   22:25:05  (  74.24,-167.99)    0.34                51
 09/18/2025   07:56:52   (  74.33,  49.06) 09/18/2025   07:57:17  (  74.33,  49.12)    1.91                25
 09/18/2025   08:47:34   ( -74.24,-143.39) 09/18/2025   08:46:40  ( -74.23,-143.45)    1.99                54
 09/20/2025   18:18:30   ( -74.33,  73.65) 09/20/2025   18:18:52  ( -74.32,  73.64)    1.57                22
 09/20/2025   19:09:14   (  74.23,-118.80) 09/20/2025   19:08:10  (  74.27,-118.80)    3.41                64
 09/23/2025   04:40:10   (  74.33,  98.23) 09/23/2025   04:40:22  (  74.34,  98.26)    1.02                12
 09/23/2025   05:30:52   ( -74.24, -94.22) 09/23/2025   05:29:45  ( -74.24, -94.30)    2.57                67
 09/25/2025   14:11:18   (  75.01, -46.35) 09/25/2025   14:12:24  (  74.91, -43.47)   83.65                66
 09/25/2025   15:01:48   ( -74.34, 122.80) 09/25/2025   15:01:56  ( -74.35, 122.84)    1.70                 8