Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 1 28.  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)
 02/02/2021   09:54:27   (  78.81,   4.06) 02/02/2021   09:53:15  (  78.82,   4.11)    1.78                72
 02/02/2021   10:45:11   ( -78.82, 171.30) 02/02/2021   10:44:12  ( -78.80, 171.21)    3.10                59
 02/02/2021   11:35:56   (  78.81, -21.31) 02/02/2021   11:35:15  (  78.83, -21.28)    3.09                41
 02/02/2021   12:26:40   ( -78.82, 145.93) 02/02/2021   12:26:12  ( -78.81, 145.82)    2.52                28
 02/02/2021   13:17:26   (  78.84, -46.92) 02/02/2021   13:17:16  (  78.81, -46.92)    3.21                10
 02/02/2021   14:08:09   ( -78.82, 120.56) 02/02/2021   14:08:12  ( -78.83, 120.43)    2.92                 3
 02/02/2021   14:58:55   (  78.84, -72.29) 02/02/2021   14:59:16  (  78.83, -72.31)    1.68                21
 02/02/2021   15:49:39   ( -78.85,  94.95) 02/02/2021   15:50:12  ( -78.84,  95.04)    2.57                33
 02/02/2021   16:40:24   (  78.84, -97.67) 02/02/2021   16:41:16  (  78.84, -97.70)    0.80                52
 02/02/2021   17:31:08   ( -78.85,  69.58) 02/02/2021   17:32:12  ( -78.86,  69.66)    1.71                64