Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 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)
 10/22/2022   14:03:28   ( -72.88, 147.65) 10/22/2022   14:04:36  ( -72.82, 149.74)   68.68                68
 10/22/2022   14:54:02   (  72.24, -43.72) 10/22/2022   14:54:12  (  72.26, -43.68)    2.12                10
 10/22/2022   15:44:45   ( -72.16, 123.75) 10/22/2022   15:43:42  ( -72.14, 123.74)    2.83                63
 10/25/2022   05:30:31   (  72.95,  95.77) 10/25/2022   05:31:38  (  72.86,  98.04)   74.97                67
 10/25/2022   06:21:02   ( -72.27, -95.49) 10/25/2022   06:21:17  ( -72.26, -95.44)    2.06                15
 10/25/2022   07:11:47   (  72.18,  71.99) 10/25/2022   07:10:44  (  72.17,  72.04)    2.21                63
 10/27/2022   20:57:34   ( -73.14,  43.66) 10/27/2022   20:58:39  ( -73.06,  46.68)   97.99                65
 10/27/2022   21:48:04   (  72.29,-147.27) 10/27/2022   21:48:19  (  72.28,-147.17)    3.62                15
 10/27/2022   22:38:46   ( -72.17,  20.30) 10/27/2022   22:37:49  ( -72.17,  20.26)    1.13                57
 10/30/2022   12:24:35   (  73.17,  -8.14) 10/30/2022   12:25:40  (  73.06,  -5.08)   99.46                65
 10/30/2022   13:15:02   ( -72.28, 161.03) 10/30/2022   13:15:23  ( -72.26, 161.03)    2.58                21
 10/30/2022   14:05:47   (  72.19, -31.48) 10/30/2022   14:04:50  (  72.16, -31.50)    3.23                57
 11/02/2022   04:42:03   (  72.27, 109.34) 11/02/2022   04:42:24  (  72.30, 109.34)    3.50                21
 11/02/2022   05:32:46   ( -72.20, -83.21) 11/02/2022   05:31:54  ( -72.19, -83.22)    0.99                52