Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 6 5.  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)
 06/05/2020   09:37:42   (  70.55,  32.47) 06/05/2020   09:38:29  (  70.57,  32.40)    3.26                47
 06/05/2020   10:28:24   ( -70.50,-160.13) 06/05/2020   10:27:58  ( -70.51,-160.05)    3.10                26
 06/08/2020   01:54:06   (  70.58, 148.34) 06/08/2020   01:55:01  (  70.57, 148.27)    2.74                55
 06/08/2020   02:44:48   ( -70.52, -44.26) 06/08/2020   02:44:30  ( -70.51, -44.18)    3.23                18
 06/08/2020   03:35:17   (  69.62, 124.43) 06/08/2020   03:34:10  (  69.69, 122.30)   82.78                67
 06/10/2020   18:10:30   (  70.61, -95.80) 06/10/2020   18:11:33  (  70.59, -95.82)    1.72                63
 06/10/2020   19:01:11   ( -70.49,  71.70) 06/10/2020   19:01:03  ( -70.48,  71.65)    1.94                 8
 06/10/2020   19:51:47   (  69.97,-120.17) 06/10/2020   19:50:37  (  70.00,-121.41)   47.00                70
 06/13/2020   10:26:53   (  70.64,  20.06) 06/13/2020   10:28:04  (  70.65,  20.13)    2.89                71
 06/13/2020   11:17:34   ( -70.52,-172.43) 06/13/2020   11:17:34  ( -70.54,-172.39)    3.21                 0
 06/13/2020   12:08:16   (  70.32,  -4.80) 06/13/2020   12:07:03  (  70.33,  -5.06)    9.93                73
 06/16/2020   02:43:23   (  70.98, 135.40) 06/16/2020   02:44:33  (  70.89, 136.38)   36.75                70
 06/16/2020   03:33:58   ( -70.54, -56.56) 06/16/2020   03:34:08  ( -70.52, -56.56)    2.31                10
 06/16/2020   04:24:41   (  70.40, 110.98) 06/16/2020   04:23:35  (  70.41, 110.93)    2.39                66
 06/18/2020   18:59:53   (  71.32,-109.28) 06/18/2020   19:01:01  (  71.22,-107.24)   73.82                68
 06/18/2020   19:50:22   ( -70.57,  59.31) 06/18/2020   19:50:41  ( -70.58,  59.39)    3.36                19
 06/18/2020   20:41:05   (  70.43,-133.16) 06/18/2020   20:40:09  (  70.42,-133.20)    2.18                56