Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 8 4.  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)
 08/06/2020   01:36:01   (  70.64, 152.93) 08/06/2020   01:36:49  (  70.62, 153.00)    3.17                48
 08/06/2020   02:26:42   ( -70.50, -39.52) 08/06/2020   02:26:19  ( -70.51, -39.53)    1.69                23
 08/08/2020   17:52:23   (  70.58, -91.07) 08/08/2020   17:53:19  (  70.60, -91.15)    3.38                56
 08/08/2020   18:43:05   ( -70.49,  76.40) 08/08/2020   18:42:49  ( -70.49,  76.32)    2.69                16
 08/08/2020   19:33:35   (  69.68,-115.05) 08/08/2020   19:32:28  (  69.72,-117.13)   80.30                67
 08/11/2020   10:08:47   (  70.64,  24.76) 08/11/2020   10:09:48  (  70.63,  24.78)    1.28                61
 08/11/2020   10:59:29   ( -70.55,-167.78) 08/11/2020   10:59:18  ( -70.52,-167.74)    2.82                11
 08/11/2020   11:50:03   (  69.95,   0.47) 08/11/2020   11:48:53  (  69.97,  -0.90)   52.09                70
 08/14/2020   02:25:09   (  70.64, 140.67) 08/14/2020   02:26:16  (  70.65, 140.70)    2.05                67
 08/14/2020   03:15:51   ( -70.55, -51.87) 08/14/2020   03:15:46  ( -70.55, -51.82)    1.92                 5
 08/14/2020   04:06:29   (  70.16, 116.06) 08/14/2020   04:05:17  (  70.22, 115.34)   27.80                72
 08/16/2020   18:41:34   (  70.75,-103.59) 08/16/2020   18:42:45  (  70.68,-103.38)   10.75                71
 08/16/2020   19:32:14   ( -70.55,  64.04) 08/16/2020   19:32:16  ( -70.53,  64.03)    2.75                 2
 08/16/2020   20:22:56   (  70.38,-128.36) 08/16/2020   20:21:43  (  70.41,-128.50)    6.42                73