Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 1.  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)
 04/01/2020   05:55:10   ( -68.87, -89.69) 04/01/2020   05:56:16  ( -68.89, -89.70)    2.76                66
 04/01/2020   06:45:53   (  68.73,  77.80) 04/01/2020   06:45:44  (  68.72,  77.74)    2.83                 9
 04/01/2020   07:36:30   ( -68.38,-114.41) 04/01/2020   07:35:17  ( -68.45,-114.97)   23.96                73
 04/03/2020   22:11:35   ( -68.91,  26.16) 04/03/2020   22:12:43  ( -68.92,  26.23)    3.08                68
 04/03/2020   23:02:18   (  68.77,-166.35) 04/03/2020   23:02:11  (  68.75,-166.34)    2.58                 7
 04/03/2020   23:52:56   ( -68.47,   1.37) 04/03/2020   23:51:43  ( -68.54,   1.03)   15.59                73
 04/06/2020   14:27:58   ( -68.89, 142.08) 04/06/2020   14:29:10  ( -68.89, 142.08)    0.34                72
 04/06/2020   15:18:41   (  68.76, -50.43) 04/06/2020   15:18:37  (  68.77, -50.42)    1.33                 4
 04/06/2020   16:09:21   ( -68.57, 117.15) 04/06/2020   16:08:08  ( -68.62, 117.01)    7.61                73
 04/09/2020   06:44:24   ( -68.99,-102.14) 04/09/2020   06:45:36  ( -68.97,-101.93)    8.67                72
 04/09/2020   07:35:06   (  68.81,  65.42) 04/09/2020   07:35:04  (  68.79,  65.49)    3.09                 2
 04/09/2020   08:25:47   ( -68.67,-127.07) 04/09/2020   08:24:35  ( -68.64,-127.07)    3.06                72
 04/11/2020   23:00:51   ( -69.14,  13.55) 04/11/2020   23:02:02  ( -69.04,  14.05)   22.56                71
 04/11/2020   23:51:30   (  68.80,-178.66) 04/11/2020   23:51:31  (  68.81,-178.60)    2.82                 1
 04/12/2020   00:42:11   ( -68.66, -11.16) 04/12/2020   00:41:02  ( -68.66, -11.16)    0.18                69
 04/14/2020   15:17:17   ( -69.24, 129.32) 04/14/2020   15:18:28  ( -69.11, 130.03)   31.48                71
 04/14/2020   16:07:54   (  68.79, -62.74) 04/14/2020   16:07:59  (  68.77, -62.77)    2.71                 5
 04/14/2020   16:58:35   ( -68.65, 104.76) 04/14/2020   16:57:29  ( -68.67, 104.75)    2.17                66