Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 7 12.  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)
 07/14/2025   09:36:24   ( -78.18,-145.55) 07/14/2025   09:37:32  ( -78.05,-143.14)   56.92                68
 07/14/2025   10:27:00   (  77.83,  23.69) 07/14/2025   10:26:56  (  77.83,  23.59)    2.45                 4
 07/16/2025   20:48:27   ( -77.86,  48.27) 07/16/2025   20:48:38  ( -77.85,  48.19)    1.91                11
 07/16/2025   21:39:11   (  77.82,-144.21) 07/16/2025   21:37:58  (  77.81,-144.29)    1.98                73
 07/19/2025   07:09:54   (  77.86,  72.93) 07/19/2025   07:10:20  (  77.86,  72.75)    4.24                26
 07/19/2025   08:00:38   ( -77.84,-119.65) 07/19/2025   07:59:40  ( -77.82,-119.73)    2.84                58
 07/21/2025   17:31:20   ( -77.89,  97.47) 07/21/2025   17:32:00  ( -77.91,  97.48)    1.28                40
 07/21/2025   18:22:04   (  77.86, -95.00) 07/21/2025   18:21:20  (  77.87, -95.03)    1.25                44
 07/24/2025   03:52:47   (  77.91, 122.11) 07/24/2025   03:53:41  (  77.94, 122.13)    3.07                54