Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 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)
 10/27/2022   20:57:33   ( -73.12,  43.69) 10/27/2022   20:58:39  ( -73.01,  46.58)   94.18                66
 10/27/2022   21:48:03   (  72.27,-147.22) 10/27/2022   21:48:19  (  72.24,-147.24)    3.29                16
 10/27/2022   22:38:45   ( -72.15,  20.33) 10/27/2022   22:37:48  ( -72.17,  20.27)    3.29                57
 10/30/2022   12:24:35   (  73.13,  -8.07) 10/30/2022   12:25:40  (  73.07,  -5.06)   97.52                65
 10/30/2022   13:15:02   ( -72.26, 161.08) 10/30/2022   13:15:23  ( -72.26, 161.03)    1.49                21
 10/30/2022   14:05:47   (  72.16, -31.42) 10/30/2022   14:04:50  (  72.17, -31.48)    2.41                57
 11/02/2022   04:42:04   (  72.28, 109.31) 11/02/2022   04:42:24  (  72.30, 109.35)    2.94                20
 11/02/2022   05:32:47   ( -72.21, -83.24) 11/02/2022   05:31:54  ( -72.19, -83.23)    3.01                53
 11/04/2022   20:09:03   ( -72.28,  57.58) 11/04/2022   20:09:28  ( -72.30,  57.58)    2.04                25
 11/04/2022   20:59:48   (  72.18,-134.91) 11/04/2022   20:58:55  (  72.21,-134.95)    2.92                53
 11/07/2022   11:36:04   (  72.31,   5.81) 11/07/2022   11:36:28  (  72.31,   5.83)    0.99                24
 11/07/2022   12:26:46   ( -72.20, 173.35) 11/07/2022   12:25:58  ( -72.19, 173.27)    2.72                48