Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 1 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)
 01/12/2022   20:07:58   (  72.12,-124.44) 01/12/2022   20:09:07  (  71.98,-122.98)   52.66                69
 01/12/2022   20:58:32   ( -71.54,  43.96) 01/12/2022   20:58:43  ( -71.54,  43.90)    2.14                11
 01/12/2022   21:49:16   (  71.43,-148.53) 01/12/2022   21:48:10  (  71.44,-148.61)    3.26                66
 01/15/2022   11:35:03   ( -71.89,-175.77) 01/15/2022   11:36:14  ( -71.78,-175.09)   26.90                71
 01/15/2022   12:25:42   (  71.53,  -7.79) 01/15/2022   12:25:44  (  71.52,  -7.88)    3.04                 2
 01/15/2022   13:16:26   ( -71.46, 159.65) 01/15/2022   13:15:13  ( -71.46, 159.65)    0.25                73
 01/18/2022   03:02:08   (  71.63, 132.94) 01/18/2022   03:03:17  (  71.65, 132.94)    2.10                69
 01/18/2022   03:52:51   ( -71.56, -59.61) 01/18/2022   03:52:46  ( -71.53, -59.62)    2.62                 5
 01/18/2022   04:43:29   (  71.14, 108.44) 01/18/2022   04:42:18  (  71.16, 107.42)   36.54                71
 01/20/2022   18:29:17   ( -71.66,  81.12) 01/20/2022   18:30:19  ( -71.66,  81.18)    2.23                62
 01/20/2022   19:20:01   (  71.55,-111.38) 01/20/2022   19:19:46  (  71.56,-111.34)    1.48                15
 01/20/2022   20:10:34   ( -70.91,  57.06) 01/20/2022   20:09:25  ( -70.96,  55.33)   62.94                69
 01/23/2022   09:56:26   (  71.61,  29.44) 01/23/2022   09:57:20  (  71.62,  29.36)    2.80                54
 01/23/2022   10:47:10   ( -71.53,-163.11) 01/23/2022   10:46:49  ( -71.56,-163.10)    2.90                21
 01/26/2022   01:23:36   ( -71.64, -22.39) 01/26/2022   01:24:23  ( -71.61, -22.40)    3.00                47
 01/26/2022   02:14:20   (  71.54, 145.11) 01/26/2022   02:13:50  (  71.51, 145.07)    3.32                30