Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 9 13.  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)
 09/15/2022   13:45:03   ( -72.56, 152.54) 09/15/2022   13:46:13  ( -72.45, 153.66)   39.47                70
 09/15/2022   14:35:41   (  72.16, -39.33) 09/15/2022   14:35:44  (  72.15, -39.24)    3.24                 3
 09/15/2022   15:26:24   ( -72.04, 128.20) 09/15/2022   15:25:14  ( -72.03, 128.18)    1.35                70
 09/18/2022   05:12:05   (  72.52, 100.89) 09/18/2022   05:13:16  (  72.39, 101.80)   33.82                71
 09/18/2022   06:02:43   ( -72.15, -91.05) 09/18/2022   06:02:49  ( -72.12, -91.06)    3.44                 6
 09/18/2022   06:53:27   (  72.05,  76.45) 09/18/2022   06:52:16  (  72.02,  76.41)    3.33                71
 09/20/2022   20:39:07   ( -72.56,  49.07) 09/20/2022   20:40:18  ( -72.46,  50.16)   38.06                71
 09/20/2022   21:29:45   (  72.16,-142.82) 09/20/2022   21:29:49  (  72.15,-142.77)    2.74                 4
 09/20/2022   22:20:28   ( -72.04,  24.73) 09/20/2022   22:19:19  ( -72.03,  24.67)    2.21                69
 09/23/2022   12:06:09   (  72.54,  -2.61) 09/23/2022   12:07:20  (  72.42,  -1.67)   34.00                71
 09/23/2022   12:56:47   ( -72.16, 165.47) 09/23/2022   12:56:53  ( -72.15, 165.47)    1.12                 6
 09/23/2022   13:47:31   (  72.06, -27.04) 09/23/2022   13:46:20  (  72.04, -27.06)    2.21                71
 09/26/2022   03:33:12   ( -72.58, -54.43) 09/26/2022   03:34:23  ( -72.46, -53.36)   38.18                71
 09/26/2022   04:23:49   (  72.13, 113.78) 09/26/2022   04:23:54  (  72.14, 113.71)    2.42                 5
 09/26/2022   05:14:33   ( -72.06, -78.76) 09/26/2022   05:13:23  ( -72.09, -78.75)    3.44                70