Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 2 19.  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   19:50:59   (  78.38,-142.35) 03/01/2021   19:49:56  (  78.43,-146.68)   97.07                63
 03/01/2021   20:41:53   ( -78.74,  22.76) 03/01/2021   20:40:50  ( -78.74,  22.72)    0.88                63
 03/01/2021   21:32:38   (  78.76,-170.04) 03/01/2021   21:31:47  (  78.76,-169.90)    3.19                51
 03/01/2021   22:23:22   ( -78.74,  -2.61) 03/01/2021   22:22:50  ( -78.75,  -2.67)    1.87                32
 03/01/2021   23:14:07   (  78.76, 164.59) 03/01/2021   23:13:47  (  78.77, 164.71)    2.91                20
 03/02/2021   00:04:51   ( -78.74, -27.98) 03/02/2021   00:04:50  ( -78.77, -28.06)    3.38                 1
 03/02/2021   00:55:36   (  78.76, 139.21) 03/02/2021   00:55:48  (  78.75, 139.06)    3.41                12
 03/02/2021   01:46:21   ( -78.78, -53.59) 03/02/2021   01:46:50  ( -78.78, -53.45)    3.11                29
 03/02/2021   02:37:05   (  78.76, 113.84) 03/02/2021   02:37:48  (  78.76, 113.67)    3.68                43
 03/02/2021   03:27:50   ( -78.78, -78.97) 03/02/2021   03:28:51  ( -78.76, -79.09)    3.22                61
 03/02/2021   04:18:35   (  78.80,  88.22) 03/02/2021   04:19:48  (  78.78,  88.27)    2.52                73