Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 9 21.  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   (  78.21, 159.92) 09/23/2025   01:21:46  (  78.19, 159.93)    2.32                29
 09/23/2025   02:12:00   ( -78.17, -32.52) 09/23/2025   02:11:07  ( -78.17, -32.50)    0.55                53
 09/25/2025   11:42:42   ( -78.21,-175.37) 09/25/2025   11:43:18  ( -78.24,-175.30)    3.19                36
 09/25/2025   12:33:26   (  78.16,  -7.78) 09/25/2025   12:32:37  (  78.17,  -7.93)    3.39                49
 09/27/2025   22:04:08   (  78.22,-150.69) 09/27/2025   22:04:48  (  78.21,-150.83)    3.13                40
 09/27/2025   22:54:52   ( -78.20,  16.70) 09/27/2025   22:54:09  ( -78.20,  16.75)    1.37                43
 09/30/2025   08:25:33   ( -78.25,-126.20) 09/30/2025   08:26:19  ( -78.22,-126.23)    3.87                46
 09/30/2025   09:16:17   (  78.22,  41.33) 09/30/2025   09:15:37  (  78.20,  41.34)    2.24                40
 10/02/2025   18:46:58   (  78.24,-101.41) 10/02/2025   18:47:47  (  78.25,-101.53)    2.85                49
 10/02/2025   19:37:42   ( -78.22,  66.04) 10/02/2025   19:37:08  ( -78.23,  66.05)    1.05                34
 10/05/2025   05:08:24   ( -78.28, -76.92) 10/05/2025   05:09:18  ( -78.26, -76.92)    2.64                54