Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 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)
 02/18/2022   19:37:12   ( -71.71,  64.26) 02/18/2022   19:38:08  ( -71.73,  64.30)    2.57                56
 02/18/2022   20:27:57   (  71.61,-128.24) 02/18/2022   20:27:36  (  71.59,-128.30)    3.14                21
 02/18/2022   21:18:24   ( -70.76,  40.55) 02/18/2022   21:17:17  ( -70.82,  38.10)   90.02                67
 02/21/2022   11:04:21   (  71.70,  12.51) 02/21/2022   11:05:07  (  71.71,  12.51)    1.44                46
 02/21/2022   11:55:04   ( -71.63, 179.96) 02/21/2022   11:54:36  ( -71.65,-179.96)    3.70                28
 02/24/2022   02:31:29   ( -71.73, -39.30) 02/24/2022   02:32:09  ( -71.72, -39.24)    2.30                40
 02/24/2022   03:22:14   (  71.62, 128.20) 02/24/2022   03:21:36  (  71.62, 128.23)    1.11                38
 02/26/2022   17:58:39   (  71.72, -91.06) 02/26/2022   17:59:08  (  71.72, -90.98)    2.69                29
 02/26/2022   18:49:21   ( -71.60,  76.48) 02/26/2022   18:48:38  ( -71.61,  76.46)    1.50                43
 03/01/2022   09:25:46   ( -71.70,-142.79) 03/01/2022   09:26:10  ( -71.71,-142.76)    1.25                24
 03/01/2022   10:16:31   (  71.59,  24.72) 03/01/2022   10:15:37  (  71.61,  24.71)    1.36                54