Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 7 8.  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)
 07/08/2023   04:40:15   ( -73.19, -69.01) 07/08/2023   04:41:10  ( -73.18, -68.91)    3.48                55
 07/08/2023   05:31:00   (  73.10,  98.51) 07/08/2023   05:30:37  (  73.10,  98.58)    2.12                23
 07/10/2023   20:07:25   (  73.18,-120.73) 07/10/2023   20:08:12  (  73.19,-120.63)    3.82                47
 07/10/2023   20:58:08   ( -73.10,  46.76) 07/10/2023   20:57:42  ( -73.07,  46.76)    3.01                26
 07/13/2023   11:34:32   ( -73.14,-172.39) 07/13/2023   11:35:17  ( -73.15,-172.48)    3.14                45
 07/13/2023   12:25:18   (  73.09,  -4.98) 07/13/2023   12:24:43  (  73.12,  -4.91)    3.47                35
 07/16/2023   03:01:42   (  73.19, 135.75) 07/16/2023   03:02:17  (  73.17, 135.80)    2.90                35
 07/16/2023   03:52:25   ( -73.11, -56.77) 07/16/2023   03:51:46  ( -73.10, -56.69)    2.68                39
 07/18/2023   18:28:49   ( -73.16,  84.06) 07/18/2023   18:29:20  ( -73.19,  84.09)    3.22                31
 07/18/2023   19:19:35   (  73.12,-108.53) 07/18/2023   19:18:47  (  73.10,-108.45)    3.35                48
 07/21/2023   09:55:59   (  73.17,  32.28) 07/21/2023   09:56:21  (  73.16,  32.28)    1.93                22
 07/21/2023   10:46:42   ( -73.10,-160.23) 07/21/2023   10:45:50  ( -73.10,-160.20)    0.99                52