Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 4 10.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 04/10/2025   09:24:13   ( -75.63,-134.14) 04/10/2025   09:24:34  ( -75.64,-134.19)    1.68                21
 04/10/2025   10:14:58   (  75.58,  33.34) 04/10/2025   10:14:01  (  75.57,  33.26)    2.34                57
 04/13/2025   00:50:21   (  75.92, 173.41) 04/13/2025   00:51:31  (  75.82, 174.59)   34.05                70
 04/13/2025   01:40:58   ( -75.62, -18.25) 04/13/2025   01:41:02  ( -75.64, -18.29)    2.36                 4
 04/13/2025   02:31:42   (  75.53, 149.37) 04/13/2025   02:30:29  (  75.57, 149.15)    7.82                73
 04/15/2025   17:07:01   (  75.71, -69.96) 04/15/2025   17:08:01  (  75.68, -69.93)    3.00                60
 04/15/2025   17:57:43   ( -75.64,  97.60) 04/15/2025   17:57:29  ( -75.66,  97.64)    2.82                14
 04/18/2025   09:23:44   (  75.69,  45.99) 04/18/2025   09:24:26  (  75.70,  46.01)    1.71                42
 04/18/2025   10:14:27   ( -75.66,-146.60) 04/18/2025   10:13:55  ( -75.63,-146.56)    3.42                32
 04/21/2025   01:40:28   (  75.68, 161.90) 04/21/2025   01:40:52  (  75.68, 161.83)    1.87                24
 04/21/2025   02:31:11   ( -75.65, -30.69) 04/21/2025   02:30:20  ( -75.66, -30.59)    2.76                51
 04/23/2025   17:06:36   ( -76.14, 108.89) 04/23/2025   17:07:44  ( -76.04, 111.16)   61.61                68
 04/23/2025   17:57:12   (  75.69, -82.23) 04/23/2025   17:57:16  (  75.71, -82.18)    3.11                 4