Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 2 27.  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   (  78.40,-142.49) 03/01/2021   19:49:56  (  78.42,-146.75)   95.32                63
 03/01/2021   20:41:52   ( -78.73,  22.81) 03/01/2021   20:40:49  ( -78.76,  22.86)    2.99                63
 03/01/2021   21:32:37   (  78.75,-169.95) 03/01/2021   21:31:47  (  78.75,-169.97)    0.38                50
 03/01/2021   22:23:22   ( -78.77,  -2.80) 03/01/2021   22:22:50  ( -78.74,  -2.78)    3.54                32
 03/01/2021   23:14:06   (  78.75, 164.67) 03/01/2021   23:13:47  (  78.76, 164.63)    1.72                19
 03/02/2021   00:04:51   ( -78.77, -28.17) 03/02/2021   00:04:50  ( -78.75, -28.17)    1.95                 1
 03/02/2021   00:55:35   (  78.75, 139.30) 03/02/2021   00:55:47  (  78.77, 139.24)    3.26                12
 03/02/2021   01:46:20   ( -78.77, -53.55) 03/02/2021   01:46:50  ( -78.77, -53.56)    0.50                30
 03/02/2021   02:37:05   (  78.78, 113.68) 03/02/2021   02:37:47  (  78.79, 113.84)    3.45                42
 03/02/2021   03:27:49   ( -78.77, -78.92) 03/02/2021   03:28:50  ( -78.78, -78.95)    1.36                61
 03/02/2021   04:18:34   (  78.79,  88.31) 03/02/2021   04:19:48  (  78.77,  88.20)    3.12                74