Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 9 20.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2025   01:21:17   (  78.20, 159.97) 09/23/2025   01:21:46  (  78.20, 159.98)    0.25                29
 09/23/2025   02:12:00   ( -78.16, -32.47) 09/23/2025   02:11:07  ( -78.18, -32.44)    2.63                53
 09/25/2025   11:42:42   ( -78.20,-175.32) 09/25/2025   11:43:19  ( -78.21,-175.44)    2.81                37
 09/25/2025   12:33:27   (  78.19,  -7.95) 09/25/2025   12:32:37  (  78.18,  -7.87)    2.31                50
 09/27/2025   22:04:08   (  78.24,-150.86) 09/27/2025   22:04:47  (  78.23,-150.74)    3.06                39
 09/27/2025   22:54:51   ( -78.19,  16.76) 09/27/2025   22:54:08  ( -78.21,  16.84)    3.09                43
 09/30/2025   08:25:33   ( -78.24,-126.14) 09/30/2025   08:26:19  ( -78.25,-126.11)    0.72                46
 09/30/2025   09:16:17   (  78.21,  41.39) 09/30/2025   09:15:37  (  78.22,  41.45)    2.17                40
 10/02/2025   18:46:59   (  78.27,-101.57) 10/02/2025   18:47:48  (  78.23,-101.58)    3.78                49