Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 17.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2020   07:33:42   ( -69.33,-114.89) 04/17/2020   07:34:53  ( -69.19,-113.98)   39.03                71
 04/17/2020   08:24:18   (  68.80,  53.15) 04/17/2020   08:24:25  (  68.81,  53.18)    1.58                 7
 04/17/2020   09:14:59   ( -68.68,-139.38) 04/17/2020   09:13:55  ( -68.70,-139.33)    2.36                64
 04/19/2020   23:50:07   ( -69.43,   0.86) 04/19/2020   23:51:17  ( -69.30,   2.06)   48.94                70
 04/20/2020   00:40:41   (  68.80, 169.06) 04/20/2020   00:40:51  (  68.81, 169.07)    1.04                10
 04/20/2020   01:31:22   ( -68.68, -23.47) 04/20/2020   01:30:21  ( -68.70, -23.44)    2.05                61
 04/22/2020   16:06:33   ( -69.54, 116.62) 04/22/2020   16:07:42  ( -69.41, 118.09)   59.19                69
 04/22/2020   16:57:05   (  68.80, -75.04) 04/22/2020   16:57:18  (  68.80, -75.05)    0.68                13
 04/22/2020   17:47:46   ( -68.68,  92.44) 04/22/2020   17:46:48  ( -68.69,  92.44)    1.03                58
 04/25/2020   08:22:58   ( -69.59,-127.56) 04/25/2020   08:24:07  ( -69.51,-125.89)   65.57                69
 04/25/2020   09:13:29   (  68.80,  40.87) 04/25/2020   09:13:45  (  68.79,  40.82)    2.58                16
 04/25/2020   10:04:10   ( -68.69,-151.66) 04/25/2020   10:03:15  ( -68.68,-151.68)    0.99                55
 04/28/2020   00:39:24   ( -69.70, -11.81) 04/28/2020   00:40:32  ( -69.60,  -9.87)   75.93                68
 04/28/2020   01:29:53   (  68.80, 156.77) 04/28/2020   01:30:11  (  68.82, 156.75)    1.84                18
 04/28/2020   02:20:33   ( -68.69, -35.76) 04/28/2020   02:19:40  ( -68.72, -35.74)    3.10                53
 04/30/2020   16:55:49   ( -69.82, 103.93) 04/30/2020   16:56:56  ( -69.69, 106.14)   86.23                67
 04/30/2020   17:46:16   (  68.81, -87.33) 04/30/2020   17:46:37  (  68.79, -87.39)    2.83                21
 04/30/2020   18:36:57   ( -68.70,  80.14) 04/30/2020   18:36:07  ( -68.69,  80.12)    0.89                50