Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 15.  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   01:53:43   (  73.05, 152.63) 06/17/2023   01:54:06  (  73.06, 152.59)    2.02                23
 06/17/2023   02:44:27   ( -72.99, -39.93) 06/17/2023   02:43:35  ( -72.99, -39.92)    0.43                52
 06/19/2023   16:30:24   (  73.87, -68.35) 06/19/2023   16:31:29  (  73.76, -65.34)   93.92                65
 06/19/2023   17:20:53   ( -73.06, 100.84) 06/19/2023   17:21:10  ( -73.06, 100.83)    0.12                17
 06/19/2023   18:11:38   (  73.00, -91.71) 06/19/2023   18:10:37  (  72.98, -91.69)    2.49                61
 06/22/2023   07:57:29   ( -73.64,-119.55) 06/22/2023   07:58:37  ( -73.54,-117.58)   63.07                68
 06/22/2023   08:48:04   (  73.08,  49.04) 06/22/2023   08:48:11  (  73.08,  49.12)    2.54                 7
 06/22/2023   09:38:47   ( -72.97,-143.41) 06/22/2023   09:37:41  ( -72.97,-143.48)    2.44                66
 06/24/2023   23:24:33   (  73.32,-170.56) 06/24/2023   23:25:44  (  73.22,-169.99)   21.24                71
 06/25/2023   00:15:13   ( -73.06,  -2.67) 06/25/2023   00:15:15  ( -73.05,  -2.69)    1.35                 2
 06/25/2023   01:05:55   (  72.85, 165.12) 06/25/2023   01:04:43  (  72.91, 164.66)   16.39                72
 06/27/2023   14:51:39   ( -73.16, 138.06) 06/27/2023   14:52:48  ( -73.18, 138.16)    3.72                69
 06/27/2023   15:42:23   (  73.09, -54.48) 06/27/2023   15:42:14  (  73.08, -54.39)    3.28                 9