Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 19.  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)
 01/21/2021   14:49:47   ( -47.98,  -9.14) 01/21/2021   14:50:21  ( -48.06,  -9.53)   30.42                34
 01/21/2021   15:40:56   (  46.41, 157.55) 01/21/2021   15:40:12  (  46.40, 157.49)    4.76                44
 01/24/2021   07:06:01   ( -48.37, 106.96) 01/24/2021   07:06:42  ( -48.48, 106.53)   34.02                41
 01/24/2021   07:57:23   (  46.05, -86.67) 01/24/2021   07:56:46  (  46.05, -86.76)    7.27                37
 01/26/2021   23:22:15   ( -48.77,-136.94) 01/26/2021   23:23:03  ( -48.89,-137.42)   37.48                48
 01/27/2021   00:13:44   (  46.04,  29.26) 01/27/2021   00:13:14  (  46.04,  29.12)   10.28                30
 01/27/2021   00:42:08   ( -53.42,   1.05) 01/27/2021   00:40:56  ( -53.68,   2.37)   91.59                72
 01/29/2021   15:38:28   ( -49.16, -20.84) 01/29/2021   15:39:23  ( -49.29, -21.37)   40.79                55
 01/29/2021   16:30:04   (  46.03, 145.18) 01/29/2021   16:29:40  (  46.09, 145.03)   13.44                24
 01/29/2021   17:03:13   ( -69.25, 103.83) 01/29/2021   17:02:00  ( -69.56, 105.70)   81.10                73
 02/01/2021   07:54:41   ( -49.61,  95.28) 02/01/2021   07:55:43  ( -49.74,  94.70)   44.02                62
 02/01/2021   08:46:25   (  46.02, -98.90) 02/01/2021   08:46:08  (  46.07, -99.09)   16.22                17