Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 9 18.  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)
 09/20/2025   14:59:50   ( -78.19, 135.34) 09/20/2025   15:00:16  ( -78.17, 135.25)    3.23                26
 09/20/2025   15:50:34   (  78.13, -57.03) 09/20/2025   15:49:34  (  78.14, -57.17)    3.45                60
 09/23/2025   01:21:17   (  78.21, 159.90) 09/23/2025   01:21:46  (  78.19, 159.94)    2.57                29
 09/23/2025   02:12:00   ( -78.17, -32.52) 09/23/2025   02:11:07  ( -78.18, -32.47)    1.33                53
 09/25/2025   11:42:42   ( -78.21,-175.36) 09/25/2025   11:43:19  ( -78.21,-175.42)    1.42                37
 09/25/2025   12:33:26   (  78.16,  -7.78) 09/25/2025   12:32:37  (  78.18,  -7.86)    2.80                49
 09/27/2025   22:04:08   (  78.21,-150.67) 09/27/2025   22:04:48  (  78.25,-150.67)    3.74                40
 09/27/2025   22:54:52   ( -78.20,  16.73) 09/27/2025   22:54:10  ( -78.19,  16.72)    1.14                42
 09/30/2025   08:25:34   ( -78.25,-126.15) 09/30/2025   08:26:21  ( -78.24,-126.16)    1.11                47
 09/30/2025   09:16:18   (  78.21,  41.37) 09/30/2025   09:15:39  (  78.21,  41.40)    0.60                39
 10/02/2025   18:46:59   (  78.27,-101.56) 10/02/2025   18:47:49  (  78.24,-101.54)    2.46                50