Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 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)
 01/21/2021   14:49:47   ( -47.97,  -9.14) 01/21/2021   14:50:21  ( -48.06,  -9.53)   30.55                34
 01/21/2021   15:41:00   (  46.17, 157.45) 01/21/2021   15:40:16  (  46.16, 157.40)    4.39                44
 01/24/2021   07:06:00   ( -48.42, 106.98) 01/24/2021   07:06:42  ( -48.48, 106.53)   34.14                42
 01/24/2021   07:57:23   (  46.04, -86.67) 01/24/2021   07:56:46  (  46.05, -86.76)    6.95                37
 01/26/2021   23:22:13   ( -48.87,-136.90) 01/26/2021   23:23:02  ( -48.95,-137.40)   37.60                49
 01/27/2021   00:13:44   (  46.03,  29.25) 01/27/2021   00:13:14  (  46.05,  29.13)   10.06                30
 01/27/2021   00:42:23   ( -54.29,   0.60) 01/27/2021   00:41:11  ( -54.55,   1.94)   91.22                72
 01/29/2021   15:38:27   ( -49.26, -20.80) 01/29/2021   15:39:23  ( -49.36, -21.34)   40.98                56
 01/29/2021   16:30:05   (  46.01, 145.18) 01/29/2021   16:29:42  (  46.05, 145.01)   13.24                23
 01/29/2021   17:03:37   ( -70.48, 101.97) 01/29/2021   17:02:24  ( -70.81, 103.90)   79.99                73
 02/01/2021   07:54:40   ( -49.65,  95.30) 02/01/2021   07:55:43  ( -49.76,  94.71)   44.29                63
 02/01/2021   08:46:24   (  46.05, -98.88) 02/01/2021   08:46:08  (  46.09, -99.08)   16.48                16
 02/01/2021   09:24:40   ( -81.22, 158.39) 02/01/2021   09:23:27  ( -81.79, 158.62)   63.06                73
 02/04/2021   00:10:54   ( -50.03,-148.60) 02/04/2021   00:12:04  ( -50.15,-149.24)   47.51                70
 02/04/2021   01:02:45   (  46.03,  17.04) 02/04/2021   01:02:36  (  46.08,  16.80)   19.61                 9