Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 7 16.  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)
 07/17/2021   15:13:08   ( -59.79, 141.07) 07/17/2021   15:14:10  ( -59.80, 141.04)    1.82                62
 07/17/2021   16:01:32   (  51.71, -46.94) 07/17/2021   16:01:21  (  51.71, -46.95)    0.83                11
 07/20/2021   07:30:02   ( -61.76,-104.46) 07/20/2021   07:31:14  ( -61.76,-104.45)    0.63                72
 07/20/2021   08:18:35   (  54.25,  67.71) 07/20/2021   08:18:34  (  54.25,  67.72)    0.47                 1
 07/22/2021   23:52:41   ( -80.14, -35.73) 07/22/2021   23:53:54  ( -80.55, -34.19)   53.73                73
 07/23/2021   00:35:34   (  56.61,-177.68) 07/23/2021   00:35:43  (  56.61,-177.65)    1.88                 9
 07/23/2021   01:24:17   ( -49.79,  -6.84) 07/23/2021   01:23:11  ( -49.79,  -6.71)    9.23                66
 07/25/2021   16:52:05   (  57.32, -62.16) 07/25/2021   16:52:25  (  57.33, -62.18)    0.87                20
 07/25/2021   17:40:24   ( -49.12, 109.40) 07/25/2021   17:39:30  ( -49.15, 109.43)    4.09                54
 07/28/2021   09:08:58   (  59.28,  52.51) 07/28/2021   09:09:28  (  59.27,  52.52)    0.54                30