Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 22.  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)
 09/22/2021   17:25:37   ( -66.62, 102.93) 09/22/2021   17:26:02  ( -66.61, 102.98)    2.29                25
 09/22/2021   18:14:41   (  60.95, -84.56) 09/22/2021   18:13:51  (  60.95, -84.56)    0.08                50
 09/25/2021   09:42:04   ( -67.12,-141.69) 09/25/2021   09:42:41  ( -67.11,-141.67)    0.67                37
 09/25/2021   10:31:31   (  62.75,  29.95) 09/25/2021   10:30:52  (  62.74,  29.98)    1.93                39
 09/28/2021   01:58:29   ( -67.50, -26.20) 09/28/2021   01:59:18  ( -67.51, -26.23)    1.46                49
 09/28/2021   02:47:56   (  63.15, 145.55) 09/28/2021   02:47:29  (  63.15, 145.53)    1.00                27
 09/30/2021   18:15:09   ( -68.70,  88.22) 09/30/2021   18:16:09  ( -68.69,  88.25)    1.02                60
 09/30/2021   19:04:40   (  64.60, -99.83) 09/30/2021   19:04:24  (  64.60, -99.82)    0.43                16
 10/03/2021   10:31:28   ( -68.82,-155.99) 10/03/2021   10:32:40  ( -68.82,-156.04)    2.17                72
 10/03/2021   11:21:19   (  65.83,  14.89) 10/03/2021   11:21:14  (  65.82,  14.92)    1.61                 5