Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 26.  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)
 04/28/2021   03:39:59   ( -57.11, -44.65) 04/28/2021   03:41:13  ( -57.20, -44.30)   23.59                74
 04/28/2021   04:27:33   (  46.08, 128.02) 04/28/2021   04:27:35  (  46.16, 128.38)   28.92                 2
 04/30/2021   20:02:08   ( -75.75,  46.32) 04/30/2021   20:03:21  ( -76.01,  47.89)   51.01                73
 04/30/2021   20:43:53   (  46.11,-116.05) 04/30/2021   20:44:03  (  46.15,-115.74)   24.91                10
 04/30/2021   21:35:42   ( -49.97,  49.64) 04/30/2021   21:34:33  ( -50.08,  50.35)   52.40                69
 05/03/2021   12:24:22   ( -77.12,  60.27) 05/03/2021   12:25:35  ( -77.57,  58.07)   73.62                73
 05/03/2021   13:00:12   (  46.08,  -0.11) 05/03/2021   13:00:31  (  46.15,   0.15)   20.81                19
 05/03/2021   13:51:53   ( -49.48, 165.80) 05/03/2021   13:50:53  ( -49.60, 166.44)   48.17                60
 05/06/2021   04:46:34   ( -58.66, 147.13) 05/06/2021   04:47:46  ( -58.94, 145.70)   88.10                72
 05/06/2021   05:16:31   (  46.06, 115.84) 05/06/2021   05:16:58  (  46.10, 116.05)   16.64                27
 05/06/2021   06:08:03   ( -48.95, -78.03) 05/06/2021   06:07:12  ( -49.07, -77.46)   43.91                51
 05/08/2021   21:32:50   (  46.10,-128.24) 05/08/2021   21:33:25  (  46.12,-128.07)   12.80                35