Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 2 8.  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)
 02/08/2022   05:48:47   ( -72.24, -89.68) 02/08/2022   05:49:56  ( -72.11, -88.01)   58.60                69
 02/08/2022   06:39:22   (  71.64,  78.77) 02/08/2022   06:39:30  (  71.65,  78.84)    2.66                 8
 02/08/2022   07:30:05   ( -71.55,-113.75) 02/08/2022   07:29:00  ( -71.52,-113.73)    2.91                65
 02/10/2022   21:15:51   (  71.92,-140.84) 02/10/2022   21:17:02  (  71.82,-140.27)   22.71                71
 02/10/2022   22:06:30   ( -71.63,  27.03) 02/10/2022   22:06:33  ( -71.65,  27.07)    2.57                 3
 02/10/2022   22:57:14   (  71.49,-165.41) 02/10/2022   22:56:01  (  71.50,-165.53)    4.44                73
 02/13/2022   12:42:54   ( -71.71, 167.80) 02/13/2022   12:44:06  ( -71.70, 167.77)    1.28                72
 02/13/2022   13:33:39   (  71.62, -24.73) 02/13/2022   13:33:33  (  71.61, -24.75)    1.31                 6
 02/13/2022   14:24:18   ( -71.32, 143.12) 02/13/2022   14:23:05  ( -71.38, 142.51)   22.38                73
 02/16/2022   04:10:04   (  71.70, 116.05) 02/16/2022   04:11:06  (  71.70, 116.02)    1.20                62
 02/16/2022   05:00:47   ( -71.61, -76.48) 02/16/2022   05:00:36  ( -71.59, -76.54)    3.18                11
 02/16/2022   05:51:21   (  70.95,  91.99) 02/16/2022   05:50:12  (  71.00,  90.15)   66.88                69
 02/18/2022   19:37:12   ( -71.70,  64.28) 02/18/2022   19:38:09  ( -71.68,  64.21)    3.19                57
 02/18/2022   20:27:57   (  71.60,-128.24) 02/18/2022   20:27:35  (  71.63,-128.22)    3.06                22
 02/18/2022   21:18:25   ( -70.74,  40.57) 02/18/2022   21:17:19  ( -70.76,  38.02)   93.46                66
 02/21/2022   11:04:22   (  71.69,  12.52) 02/21/2022   11:05:08  (  71.71,  12.51)    1.77                46
 02/21/2022   11:55:05   ( -71.61, 179.99) 02/21/2022   11:54:38  ( -71.60, 179.96)    1.55                27