Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 12 23.  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)
 12/24/2022   21:35:19   ( -72.43,  36.26) 12/24/2022   21:35:41  ( -72.42,  36.17)    3.55                22
 12/24/2022   22:26:05   (  72.38,-156.33) 12/24/2022   22:25:07  (  72.38,-156.25)    2.52                58
 12/27/2022   12:12:01   ( -72.90, 176.18) 12/27/2022   12:13:11  ( -72.77, 177.43)   43.49                70
 12/27/2022   13:02:39   (  72.45, -15.57) 12/27/2022   13:02:42  (  72.46, -15.51)    2.35                 3
 12/27/2022   13:53:22   ( -72.36, 151.92) 12/27/2022   13:52:12  ( -72.35, 151.92)    1.66                70
 12/30/2022   03:39:12   (  72.53, 125.17) 12/30/2022   03:40:16  (  72.50, 125.17)    2.70                64
 12/30/2022   04:29:55   ( -72.43, -67.32) 12/30/2022   04:29:45  ( -72.45, -67.30)    1.89                10
 12/30/2022   05:20:29   (  71.78, 101.26) 12/30/2022   05:19:21  (  71.86,  99.31)   68.36                68
 01/01/2023   19:06:29   ( -72.51,  73.42) 01/01/2023   19:07:19  ( -72.51,  73.42)    0.42                50
 01/01/2023   19:57:14   (  72.42,-119.10) 01/01/2023   19:56:46  (  72.41,-119.12)    1.65                28
 01/04/2023   10:33:48   (  72.51,  21.61) 01/04/2023   10:34:19  (  72.49,  21.63)    2.89                31
 01/04/2023   11:24:31   ( -72.40,-170.86) 01/04/2023   11:23:49  ( -72.38,-170.93)    3.43                42