Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-A
TLE Epoch: 2019 8 14.  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)
 08/27/2019   19:06:16   (  75.35,-119.98) 08/27/2019   19:07:21  (  75.31,-116.71)   92.19                65
 08/27/2019   19:56:58   ( -75.28,  47.56) 08/27/2019   19:58:05  ( -75.22,  50.35)   79.38                67
 08/27/2019   20:47:39   (  75.06,-144.49) 08/27/2019   20:48:49  (  74.99,-142.98)   44.03                70
 08/27/2019   21:38:21   ( -74.98,  23.04) 08/27/2019   21:39:32  ( -74.95,  24.23)   34.64                71
 08/27/2019   22:29:02   (  74.76,-169.03) 08/27/2019   22:30:15  (  74.75,-168.96)    2.29                73
 08/27/2019   23:19:45   ( -74.74,  -1.64) 08/27/2019   23:20:57  ( -74.76,  -1.61)    2.98                72
 08/28/2019   00:10:31   (  74.75, 165.62) 08/28/2019   00:11:36  (  74.76, 165.73)    3.55                65
 08/28/2019   01:01:14   ( -74.73, -27.00) 08/28/2019   01:02:19  ( -74.72, -27.05)    1.70                65
 08/28/2019   01:52:00   (  74.75, 140.27) 08/28/2019   01:52:58  (  74.73, 140.29)    2.36                58
 08/28/2019   02:42:43   ( -74.72, -52.35) 08/28/2019   02:43:40  ( -74.73, -52.36)    1.39                57
 08/28/2019   03:33:29   (  74.74, 114.92) 08/28/2019   03:34:19  (  74.74, 114.98)    1.91                50
 08/28/2019   04:24:12   ( -74.72, -77.70) 08/28/2019   04:25:01  ( -74.75, -77.67)    3.40                49