Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 12.  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)
 02/13/2022   12:42:55   ( -71.73, 167.75) 02/13/2022   12:44:06  ( -71.73, 167.82)    2.38                71
 02/13/2022   13:33:40   (  71.64, -24.77) 02/13/2022   13:33:33  (  71.64, -24.69)    2.84                 7
 02/13/2022   14:24:18   ( -71.30, 143.16) 02/13/2022   14:23:06  ( -71.36, 142.48)   25.22                72
 02/16/2022   04:10:04   (  71.73, 115.99) 02/16/2022   04:11:05  (  71.74, 116.07)    2.81                61
 02/16/2022   05:00:46   ( -71.59, -76.45) 02/16/2022   05:00:35  ( -71.62, -76.50)    3.06                11
 02/16/2022   05:51:20   (  70.93,  92.03) 02/16/2022   05:50:12  (  70.98,  90.12)   69.70                68
 02/18/2022   19:37:11   ( -71.69,  64.31) 02/18/2022   19:38:08  ( -71.70,  64.25)    2.54                57
 02/18/2022   20:27:56   (  71.59,-128.21) 02/18/2022   20:27:35  (  71.60,-128.27)    2.69                21
 02/18/2022   21:18:24   ( -70.73,  40.59) 02/18/2022   21:17:18  ( -70.78,  38.05)   93.33                66
 02/21/2022   11:04:22   (  71.74,  12.44) 02/21/2022   11:05:07  (  71.72,  12.54)    3.46                45
 02/21/2022   11:55:04   ( -71.61, 180.00) 02/21/2022   11:54:37  ( -71.61, 179.98)    0.85                27
 02/24/2022   02:31:29   ( -71.71, -39.26) 02/24/2022   02:32:09  ( -71.72, -39.23)    2.23                40
 02/24/2022   03:22:14   (  71.61, 128.23) 02/24/2022   03:21:36  (  71.62, 128.24)    1.53                38