Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 8.  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)
 09/11/2025   00:51:54   ( -74.32, -24.66) 09/11/2025   00:52:41  ( -74.29, -24.67)    2.75                47
 09/11/2025   01:42:38   (  74.23, 142.86) 09/11/2025   01:41:59  (  74.25, 142.92)    2.62                39
 09/13/2025   11:13:34   (  74.31,  -0.08) 09/13/2025   11:14:12  (  74.31,  -0.05)    0.94                38
 09/13/2025   12:04:16   ( -74.21, 167.50) 09/13/2025   12:03:35  ( -74.21, 167.39)    3.42                41
 09/15/2025   21:35:11   ( -74.30,  24.55) 09/15/2025   21:35:46  ( -74.31,  24.51)    1.81                35
 09/15/2025   22:25:56   (  74.26,-168.04) 09/15/2025   22:25:04  (  74.26,-167.93)    3.54                52
 09/18/2025   07:56:51   (  74.31,  49.12) 09/18/2025   07:57:17  (  74.29,  49.03)    3.12                26
 09/18/2025   08:47:34   ( -74.26,-143.44) 09/18/2025   08:46:39  ( -74.25,-143.40)    1.31                55
 09/20/2025   18:18:29   ( -74.31,  73.71) 09/20/2025   18:18:51  ( -74.31,  73.63)    2.34                22