Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 4 21.  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)
 04/23/2022   04:46:49   ( -71.87, -72.93) 04/23/2022   04:47:53  ( -71.86, -72.93)    0.54                64
 04/23/2022   05:37:34   (  71.79,  94.53) 04/23/2022   05:37:20  (  71.77,  94.55)    2.18                14
 04/23/2022   06:28:07   ( -71.18, -97.06) 04/23/2022   06:26:58  ( -71.22, -98.72)   59.84                69
 04/25/2022   20:13:57   (  71.89,-124.72) 04/25/2022   20:14:53  (  71.86,-124.68)    3.20                56
 04/25/2022   21:04:40   ( -71.78,  42.78) 04/25/2022   21:04:22  ( -71.80,  42.85)    2.90                18
 04/25/2022   21:55:09   (  70.88,-148.31) 04/25/2022   21:54:03  (  70.94,-150.91)   94.77                66
 04/28/2022   11:41:03   ( -71.88,-176.46) 04/28/2022   11:41:55  ( -71.88,-176.40)    2.19                52
 04/28/2022   12:31:47   (  71.76,  -8.93) 04/28/2022   12:31:22  (  71.78,  -8.93)    1.71                25
 05/01/2022   03:08:09   (  71.87, 131.80) 05/01/2022   03:08:54  (  71.84, 131.79)    3.32                45
 05/01/2022   03:58:52   ( -71.75, -60.67) 05/01/2022   03:58:23  ( -71.78, -60.67)    3.29                29
 05/03/2022   18:35:15   ( -71.86,  80.07) 05/03/2022   18:35:56  ( -71.83,  80.03)    3.15                41
 05/03/2022   19:25:59   (  71.75,-112.43) 05/03/2022   19:25:22  (  71.78,-112.42)    2.98                37