Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 5 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)
 05/15/2022   20:46:14   (  71.46,-131.87) 05/15/2022   20:47:21  (  71.45,-131.79)    3.16                67
 05/15/2022   21:36:57   ( -71.35,  35.64) 05/15/2022   21:36:51  ( -71.33,  35.64)    2.20                 6
 05/15/2022   22:27:34   (  70.87,-156.23) 05/15/2022   22:26:23  (  70.96,-157.30)   40.12                71
 05/18/2022   12:13:19   ( -71.44, 176.41) 05/18/2022   12:14:18  ( -71.46, 176.46)    2.17                59
 05/18/2022   13:04:03   (  71.33, -16.09) 05/18/2022   13:03:45  (  71.35, -16.06)    2.36                18
 05/18/2022   13:54:34   ( -70.59, 152.49) 05/18/2022   13:53:26  ( -70.64, 150.46)   75.10                68
 05/21/2022   03:40:25   (  71.44, 124.67) 05/21/2022   03:41:12  (  71.46, 124.72)    3.11                47
 05/21/2022   04:31:09   ( -71.37, -67.89) 05/21/2022   04:30:42  ( -71.34, -67.84)    3.26                27
 05/23/2022   19:07:30   ( -71.42,  72.95) 05/23/2022   19:08:09  ( -71.44,  72.92)    1.97                39
 05/23/2022   19:58:14   (  71.32,-119.56) 05/23/2022   19:57:36  (  71.33,-119.61)    2.16                38
 05/26/2022   10:34:35   (  71.43,  21.18) 05/26/2022   10:35:01  (  71.45,  21.20)    2.28                26
 05/26/2022   11:25:19   ( -71.36,-171.38) 05/26/2022   11:24:31  ( -71.34,-171.35)    2.25                48
 05/29/2022   01:11:10   (  72.22, 160.65) 05/29/2022   01:12:17  (  72.10, 162.90)   77.84                67
 05/29/2022   02:01:40   ( -71.42, -30.55) 05/29/2022   02:01:57  ( -71.45, -30.56)    2.94                17
 05/29/2022   02:52:24   (  71.32, 136.94) 05/29/2022   02:51:24  (  71.33, 136.90)    1.88                60