Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 1 19.  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)
 01/20/2023   05:36:17   (  73.33,  94.47) 01/20/2023   05:37:23  (  73.25,  97.25)   89.41                66
 01/20/2023   06:26:47   ( -72.56, -96.55) 01/20/2023   06:27:04  ( -72.55, -96.47)    2.96                17
 01/20/2023   07:17:31   (  72.44,  71.00) 01/20/2023   07:16:31  (  72.46,  71.00)    2.37                60
 01/22/2023   21:03:26   ( -72.96,  43.50) 01/22/2023   21:04:36  ( -72.87,  44.72)   41.18                70
 01/22/2023   21:54:04   (  72.54,-148.31) 01/22/2023   21:54:07  (  72.56,-148.22)    3.36                 3
 01/22/2023   22:44:47   ( -72.43,  19.25) 01/22/2023   22:43:37  ( -72.45,  19.20)    2.93                70
 01/25/2023   12:30:35   (  72.61,  -7.54) 01/25/2023   12:31:42  (  72.62,  -7.52)    1.37                67
 01/25/2023   13:21:19   ( -72.54, 159.92) 01/25/2023   13:21:12  ( -72.51, 159.91)    3.06                 7
 01/25/2023   14:11:55   (  72.02, -31.73) 01/25/2023   14:10:45  (  72.09, -33.21)   51.24                70
 01/28/2023   03:57:51   ( -72.61, -59.33) 01/28/2023   03:58:47  ( -72.59, -59.35)    3.17                56
 01/28/2023   04:48:36   (  72.55, 108.11) 01/28/2023   04:48:13  (  72.54, 108.20)    3.58                23
 01/30/2023   19:25:07   (  72.59,-111.07) 01/30/2023   19:25:47  (  72.62,-111.04)    3.50                40
 01/30/2023   20:15:51   ( -72.51,  56.40) 01/30/2023   20:15:17  ( -72.52,  56.39)    0.33                34