Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 9 24.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/24/2021   04:09:58   (  78.27,  94.91) 09/24/2021   04:10:38  (  78.23,  94.91)    4.16                40
 09/24/2021   05:00:41   ( -78.25, -97.68) 09/24/2021   05:01:33  ( -78.26, -97.62)    1.83                52
 09/24/2021   05:51:27   (  78.27,  69.52) 09/24/2021   05:52:38  (  78.24,  69.46)    3.76                71
 10/07/2021   16:03:27   ( -77.88,  98.69) 10/07/2021   16:02:21  ( -77.85,  95.31)   79.11                66
 10/07/2021   16:54:20   (  78.19, -95.65) 10/07/2021   16:53:17  (  78.18, -95.56)    2.39                63
 10/07/2021   17:45:03   ( -78.16,  71.82) 10/07/2021   17:44:12  ( -78.20,  71.83)    4.14                51
 10/07/2021   18:35:49   (  78.19,-121.04) 10/07/2021   18:35:17  (  78.18,-121.01)    1.02                32
 10/07/2021   19:26:33   ( -78.20,  46.22) 10/07/2021   19:26:12  ( -78.20,  46.39)    3.90                21
 10/07/2021   20:17:18   (  78.19,-146.43) 10/07/2021   20:17:17  (  78.19,-146.46)    0.60                 1
 10/07/2021   21:08:02   ( -78.21,  20.83) 10/07/2021   21:08:12  ( -78.21,  20.94)    2.72                10
 10/07/2021   21:58:47   (  78.20,-171.82) 10/07/2021   21:59:17  (  78.20,-171.90)    1.91                30
 10/07/2021   22:49:31   ( -78.21,  -4.56) 10/07/2021   22:50:12  ( -78.22,  -4.51)    1.90                41
 10/07/2021   23:40:16   (  78.20, 162.79) 10/07/2021   23:41:17  (  78.21, 162.65)    3.29                61
 10/08/2021   00:31:00   ( -78.21, -29.95) 10/08/2021   00:32:12  ( -78.23, -29.95)    1.93                72