Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 12 8.  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)
 12/09/2021   04:28:40   ( -72.01, -69.64) 12/09/2021   04:29:24  ( -72.01, -69.65)    0.35                44
 12/09/2021   05:18:37   (  69.40, 102.00) 12/09/2021   05:18:04  (  69.40, 101.98)    1.02                33
 12/11/2021   19:55:56   (  72.23,-121.85) 12/11/2021   19:56:35  (  72.23,-121.81)    1.53                39
 12/11/2021   20:45:49   ( -69.55,  50.01) 12/11/2021   20:45:11  ( -69.55,  50.02)    0.55                38
 12/14/2021   11:23:05   ( -72.21,-173.57) 12/14/2021   11:23:39  ( -72.20,-173.52)    1.91                34
 12/14/2021   12:13:04   (  69.72,  -2.03) 12/14/2021   12:12:21  (  69.72,  -1.99)    1.77                43
 12/17/2021   02:50:03   (  71.57, 135.84) 12/17/2021   02:50:33  (  71.58, 135.78)    2.60                30
 12/17/2021   03:40:09   ( -69.54, -53.54) 12/17/2021   03:39:21  ( -69.54, -53.51)    1.35                48
 12/19/2021   18:17:21   ( -72.00,  83.27) 12/19/2021   18:17:45  ( -72.00,  83.30)    1.23                24