Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 8 1.  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)
 08/03/2020   09:19:37   (  70.58,  37.11) 08/03/2020   09:20:20  (  70.59,  37.08)    1.24                43
 08/03/2020   10:10:19   ( -70.49,-155.43) 08/03/2020   10:09:50  ( -70.48,-155.46)    1.93                29
 08/06/2020   01:36:01   (  70.64, 152.94) 08/06/2020   01:36:49  (  70.62, 153.01)    3.03                48
 08/06/2020   02:26:42   ( -70.49, -39.51) 08/06/2020   02:26:19  ( -70.51, -39.52)    2.64                23
 08/08/2020   17:52:23   (  70.58, -91.07) 08/08/2020   17:53:19  (  70.60, -91.15)    3.43                56
 08/08/2020   18:43:05   ( -70.49,  76.40) 08/08/2020   18:42:49  ( -70.49,  76.33)    2.70                16
 08/08/2020   19:33:35   (  69.68,-115.05) 08/08/2020   19:32:28  (  69.72,-117.13)   80.31                67
 08/11/2020   10:08:47   (  70.64,  24.76) 08/11/2020   10:09:48  (  70.62,  24.77)    1.48                61
 08/11/2020   10:59:29   ( -70.54,-167.77) 08/11/2020   10:59:18  ( -70.52,-167.74)    2.55                11
 08/11/2020   11:50:03   (  69.95,   0.47) 08/11/2020   11:48:53  (  69.97,  -0.90)   52.17                70
 08/14/2020   02:25:09   (  70.64, 140.67) 08/14/2020   02:26:16  (  70.65, 140.69)    1.37                67
 08/14/2020   03:15:51   ( -70.55, -51.86) 08/14/2020   03:15:46  ( -70.55, -51.82)    1.63                 5
 08/14/2020   04:06:29   (  70.16, 116.06) 08/14/2020   04:05:17  (  70.21, 115.33)   27.86                72