Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 12.  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)
 09/14/2021   15:46:27   (  67.97, -53.83) 09/14/2021   15:47:32  (  67.96, -53.78)    2.50                65
 09/14/2021   16:35:37   ( -62.90, 118.73) 09/14/2021   16:35:28  ( -62.90, 118.72)    0.46                 9
 09/17/2021   08:04:29   (  73.40,  52.96) 09/17/2021   08:05:42  (  73.46,  53.54)   19.69                73
 09/17/2021   08:52:24   ( -64.50,-126.77) 09/17/2021   08:52:25  ( -64.49,-126.74)    1.81                 1
 09/17/2021   09:40:59   (  57.14,  46.12) 09/17/2021   09:39:46  (  57.15,  46.09)    1.95                73
 09/20/2021   01:08:46   ( -64.78, -11.09) 09/20/2021   01:08:58  ( -64.78, -11.12)    1.23                12
 09/20/2021   01:57:43   (  58.67, 161.09) 09/20/2021   01:56:40  (  58.68, 161.06)    1.88                63
 09/22/2021   17:25:24   ( -65.88, 103.74) 09/22/2021   17:25:46  ( -65.88, 103.74)    0.10                22
 09/22/2021   18:14:24   (  59.97, -83.85) 09/22/2021   18:13:31  (  59.98, -83.89)    2.14                53
 09/25/2021   09:41:59   ( -66.81,-141.34) 09/25/2021   09:42:31  ( -66.80,-141.32)    0.57                32