Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 5.  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)
 01/05/2021   12:20:23   (  49.90,-151.18) 01/05/2021   12:21:30  (  49.96,-151.68)   36.22                67
 01/05/2021   13:12:17   ( -46.04,  14.50) 01/05/2021   13:12:06  ( -46.05,  14.40)    7.90                11
 01/05/2021   13:52:31   (  79.31,-130.31) 01/05/2021   13:51:18  (  79.69,-131.88)   52.56                73
 01/08/2021   05:28:37   ( -46.04, 130.43) 01/08/2021   05:28:34  ( -46.04, 130.28)   11.68                 3
 01/08/2021   06:13:53   (  64.55, -51.23) 01/08/2021   06:12:40  (  64.61, -51.70)   23.51                73
 01/10/2021   21:44:54   ( -46.27,-113.56) 01/10/2021   21:44:58  ( -46.31,-113.74)   14.98                 4
 01/10/2021   22:34:17   (  50.82,  55.72) 01/10/2021   22:33:05  (  50.82,  55.73)    0.89                72
 01/13/2021   14:01:07   ( -46.73,   2.56) 01/13/2021   14:01:19  ( -46.76,   2.31)   18.90                12
 01/13/2021   14:50:59   (  49.60, 171.10) 01/13/2021   14:49:54  (  49.60, 171.10)    0.02                65
 01/16/2021   06:17:21   ( -47.13, 118.65) 01/16/2021   06:17:40  ( -47.20, 118.36)   22.75                19
 01/16/2021   07:07:39   (  48.50, -73.45) 01/16/2021   07:06:41  (  48.50, -73.47)    1.28                58
 01/18/2021   22:33:33   ( -47.58,-125.24) 01/18/2021   22:34:00  ( -47.63,-125.59)   26.43                27