Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 6 27.  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)
 06/28/2022   06:13:30   ( -72.74, -95.67) 06/28/2022   06:14:36  ( -72.65, -93.14)   84.10                66
 06/28/2022   07:04:01   (  71.92,  73.27) 06/28/2022   07:04:15  (  71.92,  73.18)    3.08                14
 06/28/2022   07:54:44   ( -71.86,-119.30) 06/28/2022   07:53:44  ( -71.86,-119.30)    0.26                60
 06/30/2022   21:40:33   (  72.60,-147.14) 06/30/2022   21:41:41  (  72.47,-145.24)   65.18                68
 06/30/2022   22:31:05   ( -71.98,  21.42) 06/30/2022   22:31:18  ( -71.98,  21.51)    3.26                13
 06/30/2022   23:21:50   (  71.87,-171.07) 06/30/2022   23:20:45  (  71.88,-171.01)    2.54                65
 07/03/2022   13:07:36   ( -72.61, 161.10) 07/03/2022   13:08:44  ( -72.51, 163.09)   67.01                68
 07/03/2022   13:58:10   (  71.95, -30.27) 07/03/2022   13:58:20  (  71.94, -30.31)    1.91                10
 07/03/2022   14:48:53   ( -71.89, 137.16) 07/03/2022   14:47:49  ( -71.88, 137.22)    2.20                64
 07/06/2022   04:34:38   (  72.49, 109.62) 07/06/2022   04:35:47  (  72.35, 111.04)   50.14                69
 07/06/2022   05:25:12   ( -71.97, -82.04) 07/06/2022   05:25:22  ( -71.98, -82.00)    1.91                10
 07/06/2022   06:15:57   (  71.86,  85.47) 07/06/2022   06:14:49  (  71.88,  85.47)    2.09                68
 07/08/2022   20:01:41   ( -72.51,  57.84) 07/08/2022   20:02:50  ( -72.39,  59.34)   52.28                69
 07/08/2022   20:52:17   (  71.94,-133.74) 07/08/2022   20:52:23  (  71.96,-133.77)    2.46                 6
 07/08/2022   21:43:00   ( -71.88,  33.69) 07/08/2022   21:41:53  ( -71.86,  33.68)    2.81                67