Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 6.  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)
 02/08/2022   05:48:47   ( -72.24, -89.69) 02/08/2022   05:49:56  ( -72.10, -88.02)   58.97                69
 02/08/2022   06:39:22   (  71.65,  78.75) 02/08/2022   06:39:30  (  71.64,  78.82)    2.79                 8
 02/08/2022   07:30:04   ( -71.50,-113.67) 02/08/2022   07:29:00  ( -71.52,-113.75)    2.91                64
 02/10/2022   21:15:51   (  71.93,-140.85) 02/10/2022   21:17:02  (  71.81,-140.29)   23.76                71
 02/10/2022   22:06:30   ( -71.63,  27.02) 02/10/2022   22:06:33  ( -71.63,  27.05)    1.33                 3
 02/10/2022   22:57:14   (  71.49,-165.42) 02/10/2022   22:56:01  (  71.49,-165.55)    4.51                73
 02/13/2022   12:42:54   ( -71.71, 167.79) 02/13/2022   12:44:06  ( -71.69, 167.75)    3.10                72
 02/13/2022   13:33:39   (  71.62, -24.74) 02/13/2022   13:33:32  (  71.64, -24.68)    3.02                 7
 02/13/2022   14:24:17   ( -71.28, 143.20) 02/13/2022   14:23:05  ( -71.37, 142.49)   27.12                72
 02/16/2022   04:10:04   (  71.70, 116.04) 02/16/2022   04:11:06  (  71.68, 115.98)    2.96                62
 02/16/2022   05:00:47   ( -71.62, -76.49) 02/16/2022   05:00:35  ( -71.63, -76.48)    1.01                12
 02/16/2022   05:51:20   (  70.90,  92.07) 02/16/2022   05:50:12  (  70.98,  90.12)   71.27                68
 02/18/2022   19:37:12   ( -71.70,  64.28) 02/18/2022   19:38:08  ( -71.71,  64.26)    0.82                56
 02/18/2022   20:27:57   (  71.61,-128.25) 02/18/2022   20:27:35  (  71.60,-128.27)    0.86                22