Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 7 27.  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)
 07/29/2025   00:35:51   (  78.34, 169.06) 07/29/2025   00:36:56  (  78.22, 172.48)   78.39                65
 07/29/2025   01:26:24   ( -77.91, -21.18) 07/29/2025   01:26:22  ( -77.91, -21.23)    1.26                 2
 07/31/2025   11:47:51   (  77.92,   3.46) 07/31/2025   11:48:02  (  77.93,   3.37)    2.35                11
 07/31/2025   12:38:35   ( -77.92, 170.80) 07/31/2025   12:37:22  ( -77.89, 170.89)    3.22                73
 08/02/2025   22:09:16   ( -77.95,  28.04) 08/02/2025   22:09:41  ( -77.94,  27.93)    2.82                25
 08/02/2025   23:00:01   (  77.93,-164.56) 08/02/2025   22:59:00  (  77.94,-164.40)    3.89                61
 08/05/2025   08:30:43   (  77.96,  52.66) 08/05/2025   08:31:20  (  77.96,  52.56)    2.52                37
 08/05/2025   09:21:26   ( -77.92,-139.79) 08/05/2025   09:20:40  ( -77.93,-139.88)    2.46                46
 08/07/2025   18:52:09   ( -77.99,  77.20) 08/07/2025   18:52:59  ( -77.99,  77.23)    0.97                50