Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 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)
 08/17/2019   11:16:31   ( -68.82,-170.02) 08/17/2019   11:17:13  ( -68.80,-170.05)    2.09                42
 08/17/2019   12:07:15   (  68.70,  -2.56) 08/17/2019   12:06:40  (  68.70,  -2.52)    1.35                35
 08/20/2019   03:32:57   ( -68.84, -54.16) 08/20/2019   03:33:40  ( -68.82, -54.14)    1.67                43
 08/20/2019   04:23:40   (  68.67, 113.38) 08/20/2019   04:23:08  (  68.66, 113.31)    2.75                32
 08/22/2019   19:49:24   ( -68.86,  61.70) 08/22/2019   19:50:08  ( -68.84,  61.76)    3.14                44
 08/22/2019   20:40:07   (  68.69,-130.76) 08/22/2019   20:39:36  (  68.68,-130.79)    1.72                31
 08/25/2019   12:05:50   ( -68.83, 177.63) 08/25/2019   12:06:36  ( -68.85, 177.66)    2.96                46
 08/25/2019   12:56:34   (  68.71, -14.91) 08/25/2019   12:56:04  (  68.69, -14.90)    2.66                30
 08/25/2019   13:46:57   ( -67.64, 153.78) 08/25/2019   13:45:50  ( -67.68, 151.54)   94.73                67
 08/28/2019   04:22:17   ( -68.85, -66.51) 08/28/2019   04:23:04  ( -68.86, -66.45)    2.65                47
 08/28/2019   05:13:00   (  68.68, 101.02) 08/28/2019   05:12:32  (  68.69, 100.99)    1.91                28
 08/28/2019   06:03:24   ( -67.66, -90.36) 08/28/2019   06:02:17  ( -67.75, -92.50)   90.92                67
 08/30/2019   20:38:42   ( -68.82,  49.41) 08/30/2019   20:39:32  ( -68.80,  49.36)    2.65                50
 08/30/2019   21:29:26   (  68.70,-143.12) 08/30/2019   21:28:59  (  68.69,-143.13)    1.54                27
 08/30/2019   22:19:51   ( -67.74,  25.43) 08/30/2019   22:18:43  ( -67.80,  23.44)   83.84                68