Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 3 18.  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)
 03/19/2023   07:03:00   ( -72.79,-105.36) 03/19/2023   07:03:41  ( -72.77,-105.38)    1.92                41
 03/19/2023   07:53:45   (  72.67,  62.19) 03/19/2023   07:53:08  (  72.68,  62.10)    3.15                37
 03/21/2023   22:30:13   (  72.80,-157.16) 03/21/2023   22:30:39  (  72.81,-157.06)    3.26                26
 03/21/2023   23:20:55   ( -72.69,  10.40) 03/21/2023   23:20:09  ( -72.68,  10.34)    2.01                46
 03/24/2023   13:06:52   (  73.55, -17.90) 03/24/2023   13:07:58  (  73.47, -15.11)   88.43                66
 03/24/2023   13:57:21   ( -72.79, 151.12) 03/24/2023   13:57:39  ( -72.77, 151.12)    1.33                18
 03/24/2023   14:48:06   (  72.67, -41.34) 03/24/2023   14:47:06  (  72.68, -41.42)    2.73                60
 03/27/2023   04:33:54   ( -73.20, -68.84) 03/27/2023   04:35:05  ( -73.09, -67.65)   40.31                71
 03/27/2023   05:24:33   (  72.79,  99.35) 03/27/2023   05:24:36  (  72.78,  99.39)    1.37                 3
 03/27/2023   06:15:16   ( -72.72, -93.19) 03/27/2023   06:14:05  ( -72.72, -93.09)    3.23                71
 03/29/2023   20:00:59   (  72.87,-119.88) 03/29/2023   20:02:06  (  72.85,-119.86)    1.78                67
 03/29/2023   20:51:42   ( -72.80,  47.58) 03/29/2023   20:51:35  ( -72.79,  47.66)    2.85                 7