Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 17.  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)
 06/17/2023   01:53:44   (  73.06, 152.61) 06/17/2023   01:54:07  (  73.04, 152.56)    2.14                23
 06/17/2023   02:44:28   ( -73.00, -39.96) 06/17/2023   02:43:36  ( -72.97, -39.95)    3.22                52
 06/19/2023   16:30:23   (  73.83, -68.25) 06/19/2023   16:31:29  (  73.74, -65.39)   89.65                66
 06/19/2023   17:20:53   ( -73.08, 100.81) 06/19/2023   17:21:09  ( -73.09, 100.89)    3.24                16
 06/19/2023   18:11:38   (  73.01, -91.74) 06/19/2023   18:10:36  (  73.01, -91.63)    3.44                62
 06/22/2023   07:57:28   ( -73.61,-119.47) 06/22/2023   07:58:37  ( -73.51,-117.65)   58.53                69
 06/22/2023   08:48:03   (  73.04,  49.13) 06/22/2023   08:48:11  (  73.05,  49.06)    2.21                 8
 06/22/2023   09:38:47   ( -72.99,-143.44) 06/22/2023   09:37:40  ( -72.99,-143.43)    0.34                67
 06/24/2023   23:24:32   (  73.28,-170.47) 06/24/2023   23:25:43  (  73.23,-169.97)   17.20                71
 06/25/2023   00:15:13   ( -73.08,  -2.70) 06/25/2023   00:15:14  ( -73.06,  -2.67)    1.86                 1
 06/25/2023   01:05:55   (  72.86, 165.09) 06/25/2023   01:04:42  (  72.92, 164.69)   14.78                73
 06/27/2023   14:51:38   ( -73.12, 138.14) 06/27/2023   14:52:48  ( -73.12, 138.05)    3.03                70
 06/27/2023   15:42:23   (  73.05, -54.40) 06/27/2023   15:42:14  (  73.08, -54.39)    2.62                 9
 06/27/2023   16:33:00   ( -72.65, 113.79) 06/27/2023   16:31:49  ( -72.70, 112.50)   42.81                71
 06/30/2023   06:18:48   (  73.15,  86.32) 06/30/2023   06:19:46  (  73.16,  86.39)    2.50                58
 06/30/2023   07:09:31   ( -73.05,-106.14) 06/30/2023   07:09:16  ( -73.05,-106.20)    2.01                15