Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 2 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)
 03/01/2021   19:51:00   (  78.43,-142.61) 03/01/2021   19:49:56  (  78.43,-146.66)   90.32                64
 03/01/2021   20:41:53   ( -78.75,  22.70) 03/01/2021   20:40:50  ( -78.74,  22.72)    1.50                63
 03/01/2021   21:32:37   (  78.73,-169.85) 03/01/2021   21:31:47  (  78.76,-169.87)    3.39                50
 03/01/2021   22:23:22   ( -78.75,  -2.68) 03/01/2021   22:22:50  ( -78.75,  -2.67)    0.26                32
 03/01/2021   23:14:07   (  78.77, 164.54) 03/01/2021   23:13:48  (  78.74, 164.48)    3.33                19
 03/02/2021   00:04:50   ( -78.75, -28.05) 03/02/2021   00:04:49  ( -78.77, -28.06)    1.75                 1
 03/02/2021   00:55:35   (  78.77, 139.17) 03/02/2021   00:55:47  (  78.75, 139.09)    2.36                12
 03/02/2021   01:46:19   ( -78.75, -53.43) 03/02/2021   01:46:49  ( -78.78, -53.45)    3.34                30
 03/02/2021   02:37:04   (  78.77, 113.79) 03/02/2021   02:37:47  (  78.77, 113.69)    2.20                43
 03/02/2021   03:27:49   ( -78.79, -79.04) 03/02/2021   03:28:50  ( -78.76, -79.09)    3.23                61
 03/02/2021   04:18:33   (  78.77,  88.42) 03/02/2021   04:19:47  (  78.78,  88.29)    2.99                74