Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 7 7.  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   ( -73.18, -68.99) 07/08/2023   04:41:10  ( -73.19, -68.89)    3.25                55
 07/08/2023   05:31:00   (  73.09,  98.53) 07/08/2023   05:30:37  (  73.11,  98.59)    2.86                23
 07/10/2023   20:07:25   (  73.17,-120.72) 07/10/2023   20:08:13  (  73.15,-120.72)    2.38                48
 07/10/2023   20:58:08   ( -73.09,  46.77) 07/10/2023   20:57:42  ( -73.08,  46.78)    1.16                26
 07/13/2023   11:34:32   ( -73.18,-172.48) 07/13/2023   11:35:16  ( -73.16,-172.46)    2.54                44
 07/13/2023   12:25:17   (  73.09,  -4.97) 07/13/2023   12:24:43  (  73.07,  -5.00)    2.04                34
 07/16/2023   03:01:42   (  73.18, 135.76) 07/16/2023   03:02:17  (  73.18, 135.82)    1.96                35
 07/16/2023   03:52:25   ( -73.10, -56.75) 07/16/2023   03:51:46  ( -73.11, -56.67)    2.84                39
 07/18/2023   18:28:49   ( -73.16,  84.08) 07/18/2023   18:29:21  ( -73.15,  84.01)    2.45                32
 07/18/2023   19:19:35   (  73.11,-108.52) 07/18/2023   19:18:47  (  73.10,-108.44)    2.65                48