Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 26.  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)
 03/27/2020   16:50:03   (  70.79, -76.15) 03/27/2020   16:51:15  (  70.70, -75.66)   20.81                72
 03/27/2020   17:40:41   ( -70.49,  91.66) 03/27/2020   17:40:47  ( -70.49,  91.65)    0.56                 6
 03/27/2020   18:31:24   (  70.37,-100.84) 03/27/2020   18:30:14  (  70.38,-100.86)    1.26                70
 03/30/2020   09:06:30   (  70.94,  39.51) 03/30/2020   09:07:40  (  70.84,  40.42)   35.09                70
 03/30/2020   09:57:06   ( -70.53,-152.49) 03/30/2020   09:57:14  ( -70.51,-152.43)    2.71                 8
 03/30/2020   10:47:49   (  70.41,  15.00) 03/30/2020   10:46:41  (  70.40,  15.05)    1.97                68
 04/02/2020   01:22:56   (  71.03, 155.26) 04/02/2020   01:24:06  (  70.91, 156.41)   44.01                70
 04/02/2020   02:13:30   ( -70.51, -36.57) 04/02/2020   02:13:41  ( -70.53, -36.52)    2.82                11
 04/02/2020   03:04:13   (  70.40, 130.93) 04/02/2020   03:03:08  (  70.42, 130.95)    2.49                65
 04/04/2020   17:39:22   (  71.12, -88.99) 04/04/2020   17:40:31  (  71.03, -87.51)   54.39                69
 04/04/2020   18:29:54   ( -70.50,  79.35) 04/04/2020   18:30:09  ( -70.49,  79.30)    2.06                15
 04/04/2020   19:20:37   (  70.39,-113.15) 04/04/2020   19:19:36  (  70.38,-113.22)    2.99                61
 04/07/2020   09:55:47   (  71.22,  26.75) 04/07/2020   09:56:55  (  71.15,  28.55)   65.27                68
 04/07/2020   10:46:17   ( -70.49,-164.73) 04/07/2020   10:46:35  ( -70.51,-164.80)    3.13                18
 04/07/2020   11:37:01   (  70.43,   2.69) 04/07/2020   11:36:01  (  70.44,   2.75)    2.73                60