Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 3 28.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2023   20:01:02   (  72.95,-120.07) 03/29/2023   20:02:14  (  72.88,-119.85)   10.91                72
 03/29/2023   20:51:43   ( -72.79,  47.59) 03/29/2023   20:51:43  ( -72.81,  47.65)    3.00                 0
 03/29/2023   21:42:25   (  72.52,-144.55) 03/29/2023   21:41:13  (  72.56,-145.17)   21.37                72
 04/01/2023   11:28:09   ( -72.86,-171.62) 04/01/2023   11:29:16  ( -72.87,-171.63)    1.05                67
 04/01/2023   12:18:55   (  72.80,  -4.19) 04/01/2023   12:18:43  (  72.78,  -4.17)    2.29                12
 04/01/2023   13:09:29   ( -72.28, 164.20) 04/01/2023   13:08:19  ( -72.34, 162.65)   52.65                70
 04/04/2023   02:55:20   (  72.88, 136.57) 04/04/2023   02:56:14  (  72.85, 136.57)    3.89                54
 04/04/2023   03:46:02   ( -72.76, -55.87) 04/04/2023   03:45:43  ( -72.78, -55.92)    2.54                19
 04/06/2023   18:22:28   ( -72.86,  84.87) 04/06/2023   18:23:14  ( -72.87,  84.85)    1.17                46
 04/06/2023   19:13:14   (  72.80,-107.70) 04/06/2023   19:12:41  (  72.77,-107.69)    3.71                33
 04/09/2023   09:49:39   (  72.86,  33.11) 04/09/2023   09:50:11  (  72.86,  33.10)    0.56                32
 04/09/2023   10:40:22   ( -72.79,-159.42) 04/09/2023   10:39:40  ( -72.80,-159.38)    2.29                42