Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 12 29.  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)
 12/29/2019   10:39:24   ( -68.81,-160.79) 12/29/2019   10:39:53  ( -68.79,-160.76)    2.22                29
 12/29/2019   11:30:07   (  68.63,   6.75) 12/29/2019   11:29:21  (  68.64,   6.69)    2.43                46
 01/01/2020   02:55:49   ( -68.80, -44.88) 01/01/2020   02:56:22  ( -68.78, -44.89)    1.90                33
 01/01/2020   03:46:33   (  68.68, 122.59) 01/01/2020   03:45:49  (  68.68, 122.62)    1.27                44
 01/03/2020   19:12:13   ( -68.79,  71.04) 01/03/2020   19:12:50  ( -68.77,  70.97)    3.58                37
 01/03/2020   20:02:57   (  68.66,-121.49) 01/03/2020   20:02:17  (  68.66,-121.52)    1.16                40
 01/06/2020   11:28:39   ( -68.83,-173.12) 01/06/2020   11:29:18  ( -68.80,-173.11)    3.18                39
 01/06/2020   12:19:23   (  68.71,  -5.65) 01/06/2020   12:18:45  (  68.69,  -5.60)    2.80                38
 01/09/2020   03:45:04   ( -68.82, -57.21) 01/09/2020   03:45:46  ( -68.83, -57.19)    1.67                42
 01/09/2020   04:35:48   (  68.70, 110.26) 01/09/2020   04:35:13  (  68.72, 110.32)    3.38                35
 01/11/2020   20:01:29   ( -68.81,  58.70) 01/11/2020   20:02:15  ( -68.80,  58.66)    2.03                46
 01/11/2020   20:52:13   (  68.69,-133.83) 01/11/2020   20:51:42  (  68.68,-133.84)    0.52                31