Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 3 14.  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)
 03/14/2022   13:50:43   ( -71.80, 150.91) 03/14/2022   13:51:55  ( -71.80, 150.90)    0.61                72
 03/14/2022   14:41:29   (  71.71, -41.63) 03/14/2022   14:41:22  (  71.71, -41.61)    0.75                 7
 03/14/2022   15:32:07   ( -71.41, 126.23) 03/14/2022   15:30:54  ( -71.48, 125.65)   21.94                73
 03/17/2022   05:17:51   (  71.77,  99.19) 03/17/2022   05:18:54  (  71.78,  99.11)    2.97                63
 03/17/2022   06:08:34   ( -71.73, -93.41) 03/17/2022   06:08:23  ( -71.71, -93.37)    2.41                11
 03/17/2022   06:59:08   (  71.03,  75.14) 03/17/2022   06:58:00  (  71.07,  73.23)   69.14                68
 03/19/2022   20:44:57   ( -71.82,  47.36) 03/19/2022   20:45:55  ( -71.82,  47.42)    2.31                58
 03/19/2022   21:35:42   (  71.69,-145.10) 03/19/2022   21:35:22  (  71.72,-145.11)    3.52                20
 03/19/2022   22:26:11   ( -70.92,  23.57) 03/19/2022   22:25:04  ( -70.96,  21.29)   82.91                67
 03/22/2022   12:12:05   (  71.81,  -4.40) 03/22/2022   12:12:54  (  71.81,  -4.35)    1.69                49
 03/22/2022   13:02:47   ( -71.71, 163.11) 03/22/2022   13:02:24  ( -71.70, 163.10)    1.54                23
 03/25/2022   03:39:09   ( -71.81, -56.14) 03/25/2022   03:39:55  ( -71.83, -56.08)    2.69                46
 03/25/2022   04:29:54   (  71.69, 111.38) 03/25/2022   04:29:22  (  71.72, 111.38)    2.90                32
 03/27/2022   19:06:14   (  71.78,-107.83) 03/27/2022   19:06:53  (  71.77,-107.92)    2.85                39
 03/27/2022   19:56:57   ( -71.72,  59.59) 03/27/2022   19:56:22  ( -71.72,  59.63)    1.48                35