Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 2.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 06/04/2021   17:08:04   ( -50.84, 116.46) 06/04/2021   17:08:59  ( -50.84, 116.46)    0.24                55
 06/04/2021   17:57:49   (  47.24, -74.67) 06/04/2021   17:57:28  (  47.30, -74.46)   17.21                21
 06/07/2021   09:25:01   ( -53.01,-128.65) 06/07/2021   09:26:05  ( -53.00,-128.64)    0.76                64
 06/07/2021   10:13:58   (  46.66,  41.51) 06/07/2021   10:13:47  (  46.69,  41.65)   11.67                11
 06/10/2021   01:41:55   ( -54.99, -13.76) 06/10/2021   01:43:08  ( -54.99, -13.75)    1.19                73
 06/10/2021   02:30:07   (  46.08, 157.68) 06/10/2021   02:30:06  (  46.09, 157.76)    6.17                 1
 06/12/2021   18:04:22   ( -74.90,  78.57) 06/12/2021   18:05:36  ( -75.14,  79.71)   42.25                74
 06/12/2021   18:46:25   (  46.08, -86.38) 06/12/2021   18:46:34  (  46.10, -86.36)    2.03                 9
 06/12/2021   19:38:14   ( -49.97,  79.31) 06/12/2021   19:37:05  ( -50.05,  79.72)   30.66                69
 06/15/2021   10:27:17   ( -76.09,  86.00) 06/15/2021   10:28:30  ( -76.55,  83.59)   81.27                73
 06/15/2021   11:03:07   (  47.41,  29.02) 06/15/2021   11:03:25  (  47.41,  29.02)    0.42                18