Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 17.  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)
 10/17/2022   07:09:22   ( -72.64,-108.38) 10/17/2022   07:10:33  ( -72.54,-107.26)   38.95                71
 10/17/2022   08:00:00   (  72.21,  59.80) 10/17/2022   08:00:05  (  72.19,  59.74)    2.90                 5
 10/17/2022   08:50:43   ( -72.12,-132.72) 10/17/2022   08:49:34  ( -72.13,-132.74)    1.01                69
 10/19/2022   22:36:25   (  72.71,-160.25) 10/19/2022   22:37:35  (  72.61,-158.90)   46.14                70
 10/19/2022   23:27:00   ( -72.22,   8.06) 10/19/2022   23:27:10  ( -72.23,   8.03)    1.46                10
 10/20/2022   00:17:45   (  72.14, 175.52) 10/20/2022   00:16:37  (  72.13, 175.51)    0.61                68
 10/22/2022   14:03:29   ( -72.93, 147.56) 10/22/2022   14:04:36  ( -72.84, 149.76)   72.76                67
 10/22/2022   14:54:02   (  72.24, -43.71) 10/22/2022   14:54:13  (  72.21, -43.76)    3.37                11
 10/22/2022   15:44:45   ( -72.16, 123.76) 10/22/2022   15:43:42  ( -72.15, 123.77)    0.44                63
 10/25/2022   05:30:31   (  72.96,  95.77) 10/25/2022   05:31:38  (  72.86,  98.04)   75.20                67
 10/25/2022   06:21:02   ( -72.27, -95.49) 10/25/2022   06:21:17  ( -72.27, -95.43)    2.17                15
 10/25/2022   07:11:47   (  72.19,  71.98) 10/25/2022   07:10:44  (  72.17,  72.04)    2.69                63
 10/27/2022   20:57:33   ( -73.15,  43.64) 10/27/2022   20:58:38  ( -73.05,  46.65)   98.14                65
 10/27/2022   21:48:02   (  72.25,-147.19) 10/27/2022   21:48:18  (  72.26,-147.19)    0.91                16
 10/27/2022   22:38:45   ( -72.18,  20.28) 10/27/2022   22:37:48  ( -72.15,  20.24)    2.82                57
 10/30/2022   12:24:34   (  73.14,  -8.08) 10/30/2022   12:25:39  (  73.08,  -5.04)   98.30                65
 10/30/2022   13:15:01   ( -72.26, 161.09) 10/30/2022   13:15:22  ( -72.28, 161.07)    2.87                21
 10/30/2022   14:05:46   (  72.17, -31.43) 10/30/2022   14:04:49  (  72.18, -31.47)    1.82                57