Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-A
TLE Epoch: 2020 9 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-A) METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 10/01/2020   14:07:52   (  76.61, -49.06) 10/01/2020   14:08:58  (  76.56, -45.79)   84.45                66
 10/01/2020   14:58:34   ( -76.53, 118.54) 10/01/2020   14:59:41  ( -76.51, 121.37)   73.33                67
 10/01/2020   15:49:15   (  76.34, -73.42) 10/01/2020   15:50:26  (  76.27, -72.16)   33.94                71
 10/01/2020   16:39:57   ( -76.26,  94.17) 10/01/2020   16:41:09  ( -76.22,  95.01)   22.71                72
 10/01/2020   17:30:39   (  76.11, -97.97) 10/01/2020   17:31:51  (  76.11, -98.04)    1.71                72
 10/01/2020   18:21:23   ( -76.13,  69.29) 10/01/2020   18:22:33  ( -76.11,  69.30)    1.73                70
 10/01/2020   19:12:08   (  76.11,-123.34) 10/01/2020   19:13:13  (  76.09,-123.44)    3.28                65
 10/01/2020   20:02:52   ( -76.12,  43.92) 10/01/2020   20:03:55  ( -76.09,  43.89)    3.58                63
 10/01/2020   20:53:37   (  76.10,-148.70) 10/01/2020   20:54:34  (  76.12,-148.68)    1.57                57
 10/01/2020   21:44:21   ( -76.12,  18.56) 10/01/2020   21:45:16  ( -76.12,  18.65)    2.37                55
 10/01/2020   22:35:06   (  76.10,-174.06) 10/01/2020   22:35:56  (  76.10,-174.09)    0.66                50
 10/01/2020   23:25:50   ( -76.12,  -6.81) 10/01/2020   23:26:38  ( -76.10,  -6.75)    2.36                48
 10/02/2020   00:16:35   (  76.10, 160.57) 10/02/2020   00:17:18  (  76.08, 160.51)    2.64                43
 10/02/2020   01:07:19   ( -76.12, -32.17) 10/02/2020   01:08:00  ( -76.08, -32.16)    3.73                41