Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 15.  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)
 02/16/2022   04:10:04   (  71.69, 116.06) 02/16/2022   04:11:06  (  71.72, 116.04)    3.24                62
 02/16/2022   05:00:47   ( -71.62, -76.49) 02/16/2022   05:00:36  ( -71.60, -76.53)    2.39                11
 02/16/2022   05:51:21   (  70.94,  92.00) 02/16/2022   05:50:13  (  70.96,  90.09)   69.36                68
 02/18/2022   19:37:11   ( -71.71,  64.27) 02/18/2022   19:38:08  ( -71.69,  64.22)    3.05                57
 02/18/2022   20:27:56   (  71.61,-128.24) 02/18/2022   20:27:35  (  71.59,-128.29)    2.54                21
 02/18/2022   21:18:24   ( -70.75,  40.56) 02/18/2022   21:17:17  ( -70.82,  38.11)   89.89                67
 02/21/2022   11:04:21   (  71.70,  12.51) 02/21/2022   11:05:07  (  71.72,  12.52)    1.79                46
 02/21/2022   11:55:04   ( -71.63, 179.96) 02/21/2022   11:54:37  ( -71.60, 179.96)    2.93                27
 02/24/2022   02:31:29   ( -71.73, -39.31) 02/24/2022   02:32:09  ( -71.72, -39.23)    2.76                40
 02/24/2022   03:22:14   (  71.63, 128.19) 02/24/2022   03:21:36  (  71.62, 128.24)    1.81                38
 02/26/2022   17:58:38   (  71.68, -90.98) 02/26/2022   17:59:09  (  71.67, -91.07)    3.07                31
 02/26/2022   18:49:21   ( -71.61,  76.46) 02/26/2022   18:48:38  ( -71.62,  76.47)    0.95                43