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   19:50:59   (  78.41,-142.52) 03/01/2021   19:49:56  (  78.41,-146.79)   95.46                63
 03/01/2021   20:41:52   ( -78.74,  22.79) 03/01/2021   20:40:49  ( -78.75,  22.84)    2.23                63
 03/01/2021   21:32:37   (  78.75,-169.99) 03/01/2021   21:31:47  (  78.74,-170.01)    1.29                50
 03/01/2021   22:23:21   ( -78.74,  -2.58) 03/01/2021   22:22:49  ( -78.77,  -2.56)    3.62                32
 03/01/2021   23:14:06   (  78.75, 164.64) 03/01/2021   23:13:47  (  78.75, 164.59)    1.04                19
 03/02/2021   00:04:51   ( -78.77, -28.19) 03/02/2021   00:04:50  ( -78.75, -28.20)    2.70                 1
 03/02/2021   00:55:35   (  78.75, 139.27) 03/02/2021   00:55:47  (  78.77, 139.20)    2.32                12
 03/02/2021   01:46:20   ( -78.77, -53.57) 03/02/2021   01:46:50  ( -78.76, -53.59)    1.24                30
 03/02/2021   02:37:05   (  78.79, 113.65) 03/02/2021   02:37:47  (  78.78, 113.80)    3.39                42
 03/02/2021   03:27:49   ( -78.78, -78.94) 03/02/2021   03:28:50  ( -78.78, -78.98)    0.96                61
 03/02/2021   04:18:34   (  78.79,  88.28) 03/02/2021   04:19:47  (  78.80,  88.41)    2.92                73