Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 7 21.  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)
 07/22/2021   23:52:45   ( -80.25, -37.00) 07/22/2021   23:53:58  ( -80.67, -35.48)   54.27                73
 07/23/2021   00:35:35   (  56.66,-177.70) 07/23/2021   00:35:44  (  56.66,-177.67)    1.97                 9
 07/23/2021   01:24:17   ( -49.80,  -6.84) 07/23/2021   01:23:11  ( -49.79,  -6.71)    9.29                66
 07/25/2021   16:52:05   (  57.32, -62.16) 07/25/2021   16:52:25  (  57.32, -62.17)    0.89                20
 07/25/2021   17:40:24   ( -49.13, 109.40) 07/25/2021   17:39:30  ( -49.16, 109.43)    3.74                54
 07/28/2021   09:08:58   (  59.27,  52.52) 07/28/2021   09:09:28  (  59.27,  52.52)    0.38                30
 07/28/2021   09:57:03   ( -50.30,-135.18) 07/28/2021   09:56:19  ( -50.30,-135.17)    0.91                44
 07/31/2021   01:25:46   (  60.99, 167.23) 07/31/2021   01:26:26  (  60.98, 167.25)    1.57                40
 07/31/2021   02:13:56   ( -52.33, -20.20) 07/31/2021   02:13:22  ( -52.33, -20.20)    0.49                34
 08/02/2021   17:42:09   (  61.25, -77.02) 08/02/2021   17:43:00  (  61.25, -77.06)    1.86                51