Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 4 6.  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)
 04/07/2020   09:55:49   (  71.29,  26.62) 04/07/2020   09:56:57  (  71.15,  28.55)   70.76                68
 04/07/2020   10:46:18   ( -70.53,-164.78) 04/07/2020   10:46:36  ( -70.55,-164.75)    2.87                18
 04/07/2020   11:37:01   (  70.40,   2.73) 04/07/2020   11:36:04  (  70.39,   2.66)    2.75                57
 04/10/2020   02:12:16   (  71.44, 142.26) 04/10/2020   02:13:22  (  71.33, 144.71)   87.73                66
 04/10/2020   03:02:41   ( -70.52, -48.87) 04/10/2020   03:03:04  ( -70.52, -48.92)    2.20                23
 04/10/2020   03:53:25   (  70.45, 118.57) 04/10/2020   03:52:30  (  70.46, 118.64)    3.32                55
 04/12/2020   19:19:06   ( -70.57,  66.96) 04/12/2020   19:19:32  ( -70.55,  67.00)    3.16                26
 04/12/2020   20:09:49   (  70.44,-125.52) 04/12/2020   20:08:59  (  70.43,-125.52)    0.86                50
 04/15/2020   11:35:30   ( -70.57,-177.13) 04/15/2020   11:36:00  ( -70.59,-177.06)    3.35                30
 04/15/2020   12:26:13   (  70.44,  -9.61) 04/15/2020   12:25:28  (  70.42,  -9.67)    3.03                45
 04/18/2020   03:51:54   ( -70.57, -61.23) 04/18/2020   03:52:29  ( -70.59, -61.19)    2.63                35
 04/18/2020   04:42:38   (  70.49, 106.21) 04/18/2020   04:41:56  (  70.47, 106.28)    3.45                42