Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 7 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)
 07/21/2025   17:31:21   ( -77.92,  97.36) 07/21/2025   17:32:00  ( -77.91,  97.48)    3.08                39
 07/21/2025   18:22:05   (  77.87, -95.09) 07/21/2025   18:21:20  (  77.88, -94.99)    2.39                45
 07/24/2025   03:52:48   (  77.92, 122.02) 07/24/2025   03:53:41  (  77.93, 122.13)    2.84                53
 07/24/2025   04:43:31   ( -77.87, -70.39) 07/24/2025   04:43:01  ( -77.90, -70.37)    2.58                30
 07/26/2025   14:14:14   ( -77.93, 146.69) 07/26/2025   14:15:22  ( -77.95, 146.71)    1.88                68
 07/26/2025   15:04:58   (  77.88, -45.74) 07/26/2025   15:04:42  (  77.91, -45.79)    3.07                16
 07/29/2025   00:35:50   (  78.33, 169.13) 07/29/2025   00:36:55  (  78.26, 172.64)   79.63                65
 07/29/2025   01:26:24   ( -77.93, -21.29) 07/29/2025   01:26:22  ( -77.91, -21.24)    2.49                 2
 07/31/2025   11:47:51   (  77.95,   3.33) 07/31/2025   11:48:02  (  77.94,   3.41)    2.00                11
 07/31/2025   12:38:34   ( -77.90, 170.91) 07/31/2025   12:37:22  ( -77.91, 170.96)    2.04                72
 08/02/2025   22:09:17   ( -77.96,  27.95) 08/02/2025   22:09:42  ( -77.97,  28.09)    3.63                25