Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 11 15.  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)
 11/17/2021   10:27:42   (  70.52,  22.92) 11/17/2021   10:28:09  (  70.52,  22.99)    2.49                27
 11/17/2021   11:18:23   ( -70.38,-169.54) 11/17/2021   11:17:39  ( -70.40,-169.55)    1.86                44
 11/20/2021   02:43:59   (  70.54, 138.84) 11/20/2021   02:44:34  (  70.56, 138.92)    3.26                35
 11/20/2021   03:34:41   ( -70.45, -53.70) 11/20/2021   03:34:04  ( -70.44, -53.62)    3.33                37
 11/22/2021   19:00:15   (  70.52,-105.16) 11/22/2021   19:01:00  (  70.53,-105.24)    3.07                45
 11/22/2021   19:50:57   ( -70.42,  62.31) 11/22/2021   19:50:30  ( -70.42,  62.23)    2.96                27
 11/25/2021   11:16:31   (  70.55,  10.74) 11/25/2021   11:17:24  (  70.56,  10.68)    2.58                53
 11/25/2021   12:07:13   ( -70.45, 178.22) 11/25/2021   12:06:54  ( -70.44, 178.15)    2.83                19
 11/25/2021   12:57:41   (  69.55, -13.09) 11/25/2021   12:56:34  (  69.62, -15.37)   88.71                67
 11/28/2021   03:32:48   (  70.58, 126.65) 11/28/2021   03:33:49  (  70.57, 126.58)    2.42                61
 11/28/2021   04:23:30   ( -70.47, -65.87) 11/28/2021   04:23:19  ( -70.47, -65.94)    3.02                11
 11/28/2021   05:14:03   (  69.85, 102.42) 11/28/2021   05:12:54  (  69.91, 100.91)   58.12                69