Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 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)
 09/22/2021   17:25:38   ( -66.64, 102.91) 09/22/2021   17:26:03  ( -66.63, 102.96)    2.31                25
 09/22/2021   18:14:42   (  60.97, -84.58) 09/22/2021   18:13:52  (  60.98, -84.58)    0.10                50
 09/25/2021   09:42:05   ( -67.14,-141.71) 09/25/2021   09:42:42  ( -67.14,-141.70)    0.80                37
 09/25/2021   10:31:32   (  62.77,  29.93) 09/25/2021   10:30:53  (  62.77,  29.96)    2.03                39
 09/28/2021   01:58:30   ( -67.58, -26.30) 09/28/2021   01:59:19  ( -67.59, -26.32)    1.17                49
 09/28/2021   02:47:57   (  63.23, 145.48) 09/28/2021   02:47:30  (  63.23, 145.47)    0.76                27
 09/30/2021   18:15:10   ( -68.77,  88.12) 09/30/2021   18:16:10  ( -68.77,  88.15)    1.53                60
 09/30/2021   19:04:41   (  64.69, -99.90) 09/30/2021   19:04:25  (  64.68, -99.89)    0.88                16
 10/03/2021   10:31:31   ( -68.95,-156.17) 10/03/2021   10:32:43  ( -68.95,-156.20)    1.36                72
 10/03/2021   11:21:22   (  65.97,  14.74) 10/03/2021   11:21:17  (  65.96,  14.79)    2.33                 5