Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 12 26.  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)
 12/27/2023   00:08:17   ( -74.45,  -1.40) 12/27/2023   00:09:23  ( -74.34,   1.54)   88.86                66
 12/27/2023   00:58:49   (  73.72, 167.75) 12/27/2023   00:59:00  (  73.74, 167.83)    2.93                11
 12/27/2023   01:49:32   ( -73.66, -24.78) 12/27/2023   01:48:29  ( -73.67, -24.69)    3.04                63
 12/29/2023   16:25:44   ( -73.72, 116.07) 12/29/2023   16:26:02  ( -73.74, 116.07)    1.83                18
 12/29/2023   17:16:29   (  73.64, -76.42) 12/29/2023   17:15:29  (  73.65, -76.48)    2.56                60
 01/01/2024   07:52:41   (  73.77,  64.28) 01/01/2024   07:53:00  (  73.74,  64.32)    3.14                19
 01/01/2024   08:43:24   ( -73.69,-128.23) 01/01/2024   08:42:29  ( -73.68,-128.18)    2.35                55
 01/03/2024   23:19:36   ( -73.77,  12.57) 01/03/2024   23:20:00  ( -73.78,  12.67)    3.14                24
 01/04/2024   00:10:21   (  73.70,-179.94) 01/04/2024   00:09:27  (  73.69,-179.90)    1.80                54
 01/06/2024   14:46:32   (  73.75, -39.06) 01/06/2024   14:46:58  (  73.77, -39.12)    2.59                26
 01/06/2024   15:37:16   ( -73.71, 128.34) 01/06/2024   15:36:27  ( -73.71, 128.39)    1.59                49