Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 1 31.  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)
 01/31/2022   08:17:54   ( -71.66,-125.96) 01/31/2022   08:18:25  ( -71.65,-125.86)    3.21                31
 01/31/2022   09:08:38   (  71.53,  41.58) 01/31/2022   09:07:53  (  71.51,  41.54)    2.67                45
 02/02/2022   23:45:03   (  71.60,-177.63) 02/02/2022   23:45:27  (  71.61,-177.69)    2.49                24
 02/03/2022   00:35:47   ( -71.55, -10.22) 02/03/2022   00:34:56  ( -71.55, -10.17)    1.84                51
 02/05/2022   14:21:43   (  72.45, -38.32) 02/05/2022   14:22:49  (  72.35, -35.81)   85.25                66
 02/05/2022   15:12:12   ( -71.63, 130.57) 02/05/2022   15:12:30  ( -71.64, 130.59)    1.77                18
 02/05/2022   16:02:56   (  71.55, -61.99) 02/05/2022   16:01:56  (  71.55, -61.93)    2.24                60
 02/08/2022   05:48:47   ( -72.27, -89.73) 02/08/2022   05:49:55  ( -72.15, -87.93)   62.65                68
 02/08/2022   06:39:21   (  71.63,  78.79) 02/08/2022   06:39:30  (  71.63,  78.81)    0.63                 9
 02/08/2022   07:30:04   ( -71.53,-113.71) 02/08/2022   07:29:00  ( -71.51,-113.75)    1.95                64
 02/10/2022   21:15:50   (  71.92,-140.82) 02/10/2022   21:17:02  (  71.81,-140.29)   22.11                72
 02/10/2022   22:06:29   ( -71.61,  27.06) 02/10/2022   22:06:33  ( -71.64,  27.07)    3.49                 4
 02/10/2022   22:57:13   (  71.48,-165.40) 02/10/2022   22:56:01  (  71.49,-165.55)    5.35                72
 02/13/2022   12:42:55   ( -71.75, 167.73) 02/13/2022   12:44:07  ( -71.71, 167.78)    5.05                72
 02/13/2022   13:33:39   (  71.62, -24.72) 02/13/2022   13:33:34  (  71.60, -24.75)    1.76                 5