Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 5 27.  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)
 05/28/2020   08:48:32   (  70.55,  44.74) 05/28/2020   08:48:57  (  70.54,  44.73)    0.83                25
 05/28/2020   09:39:13   ( -70.46,-147.79) 05/28/2020   09:38:27  ( -70.43,-147.80)    2.48                46
 05/31/2020   01:04:56   (  70.57, 160.61) 05/31/2020   01:05:26  (  70.57, 160.65)    1.65                30
 05/31/2020   01:55:37   ( -70.47, -31.91) 05/31/2020   01:54:56  ( -70.46, -31.88)    1.96                41
 06/02/2020   17:21:20   (  70.60, -83.52) 06/02/2020   17:21:55  (  70.59, -83.44)    3.27                35
 06/02/2020   18:12:01   ( -70.49,  83.97) 06/02/2020   18:11:25  ( -70.48,  84.04)    2.85                36
 06/05/2020   09:37:43   (  70.57,  32.44) 06/05/2020   09:38:25  (  70.55,  32.39)    2.62                42
 06/05/2020   10:28:24   ( -70.46,-160.07) 06/05/2020   10:27:55  ( -70.45,-160.13)    2.56                29
 06/08/2020   01:54:06   (  70.60, 148.30) 06/08/2020   01:54:53  (  70.56, 148.30)    3.44                47
 06/08/2020   02:44:47   ( -70.48, -44.19) 06/08/2020   02:44:23  ( -70.46, -44.22)    2.13                24