Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 6.  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)
 01/08/2021   05:28:38   ( -46.01, 130.41) 01/08/2021   05:28:34  ( -46.06, 130.28)   11.65                 4
 01/08/2021   06:13:51   (  64.69, -51.10) 01/08/2021   06:12:38  (  64.75, -51.58)   23.79                73
 01/10/2021   21:44:55   ( -46.24,-113.57) 01/10/2021   21:44:59  ( -46.28,-113.75)   14.89                 4
 01/10/2021   22:34:15   (  50.96,  55.79) 01/10/2021   22:33:03  (  50.96,  55.80)    0.51                72
 01/13/2021   14:01:08   ( -46.70,   2.55) 01/13/2021   14:01:20  ( -46.72,   2.30)   18.96                12
 01/13/2021   14:50:55   (  49.87, 171.22) 01/13/2021   14:49:50  (  49.87, 171.21)    0.57                65
 01/16/2021   06:17:21   ( -47.10, 118.64) 01/16/2021   06:17:40  ( -47.16, 118.35)   22.59                19
 01/16/2021   07:08:01   (  47.21, -73.99) 01/16/2021   07:07:02  (  47.22, -73.97)    1.53                59
 01/18/2021   22:33:35   ( -47.51,-125.27) 01/18/2021   22:34:01  ( -47.59,-125.60)   26.43                26