Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 10.  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)
 02/10/2022   21:15:50   (  71.91,-140.82) 02/10/2022   21:17:01  (  71.84,-140.24)   21.67                71
 02/10/2022   22:06:29   ( -71.62,  27.04) 02/10/2022   22:06:33  ( -71.61,  27.00)    2.03                 4
 02/10/2022   22:57:13   (  71.48,-165.39) 02/10/2022   22:56:00  (  71.52,-165.50)    5.89                73
 02/13/2022   12:42:54   ( -71.70, 167.81) 02/13/2022   12:44:06  ( -71.72, 167.79)    1.76                72
 02/13/2022   13:33:39   (  71.61, -24.72) 02/13/2022   13:33:33  (  71.63, -24.72)    1.63                 6
 02/13/2022   14:24:18   ( -71.32, 143.12) 02/13/2022   14:23:06  ( -71.34, 142.45)   24.06                72
 02/16/2022   04:10:04   (  71.70, 116.05) 02/16/2022   04:11:06  (  71.73, 116.05)    3.11                62
 02/16/2022   05:00:47   ( -71.61, -76.48) 02/16/2022   05:00:36  ( -71.61, -76.51)    0.95                11
 02/16/2022   05:51:21   (  70.95,  91.99) 02/16/2022   05:50:12  (  71.02,  90.19)   65.92                69
 02/18/2022   19:37:12   ( -71.71,  64.27) 02/18/2022   19:38:09  ( -71.71,  64.25)    0.58                57
 02/18/2022   20:27:57   (  71.61,-128.25) 02/18/2022   20:27:36  (  71.61,-128.27)    1.03                21
 02/18/2022   21:18:25   ( -70.75,  40.56) 02/18/2022   21:17:19  ( -70.79,  38.06)   91.61                66
 02/21/2022   11:04:21   (  71.71,  12.50) 02/21/2022   11:05:08  (  71.69,  12.47)    2.42                47
 02/21/2022   11:55:04   ( -71.63, 179.96) 02/21/2022   11:54:37  ( -71.63,-179.99)    1.95                27
 02/24/2022   02:31:29   ( -71.73, -39.31) 02/24/2022   02:32:10  ( -71.71, -39.26)    3.06                41
 02/24/2022   03:22:14   (  71.63, 128.18) 02/24/2022   03:21:37  (  71.60, 128.21)    3.37                37