Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 6 15.  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)
 06/17/2022   17:15:44   (  71.92, -79.75) 06/17/2022   17:16:03  (  71.93, -79.78)    1.52                19
 06/17/2022   18:06:27   ( -71.83,  87.72) 06/17/2022   18:05:32  ( -71.86,  87.74)    3.42                55
 06/20/2022   07:52:20   (  72.78,  59.46) 06/20/2022   07:53:26  (  72.67,  62.18)   90.58                66
 06/20/2022   08:42:48   ( -71.94,-131.53) 06/20/2022   08:43:08  ( -71.92,-131.56)    2.31                20
 06/20/2022   09:33:33   (  71.85,  35.94) 06/20/2022   09:32:35  (  71.82,  35.92)    2.80                58
 06/22/2022   23:19:23   ( -72.80,   7.67) 06/22/2022   23:20:29  ( -72.70,  10.47)   92.97                66
 06/23/2022   00:09:53   (  71.95, 176.69) 06/23/2022   00:10:08  (  71.97, 176.77)    3.28                15
 06/23/2022   01:00:36   ( -71.87, -15.84) 06/23/2022   00:59:38  ( -71.86, -15.79)    2.75                58
 06/25/2022   14:46:26   (  72.67, -43.80) 06/25/2022   14:47:33  (  72.58, -41.52)   76.57                67
 06/25/2022   15:36:56   ( -71.93, 124.99) 06/25/2022   15:37:13  ( -71.93, 124.95)    1.20                17
 06/25/2022   16:27:41   (  71.84, -67.53) 06/25/2022   16:26:40  (  71.83, -67.58)    1.88                61
 06/28/2022   06:13:30   ( -72.71, -95.61) 06/28/2022   06:14:37  ( -72.58, -93.27)   78.91                67
 06/28/2022   07:04:02   (  71.95,  73.20) 06/28/2022   07:04:14  (  71.95,  73.22)    1.12                12
 06/28/2022   07:54:44   ( -71.83,-119.24) 06/28/2022   07:53:44  ( -71.84,-119.33)    3.29                60