Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 12 2.  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)
 12/03/2021   02:59:43   ( -78.04, -65.76) 12/03/2021   02:58:34  ( -78.04, -65.58)    3.96                69
 12/03/2021   03:50:29   (  78.02, 101.67) 12/03/2021   03:49:28  (  78.05, 101.73)    3.31                61
 12/03/2021   04:41:14   ( -78.02, -91.03) 12/03/2021   04:40:34  ( -78.05, -91.04)    2.74                40
 12/03/2021   05:32:01   (  78.04,  76.19) 12/03/2021   05:31:28  (  78.05,  76.27)    2.45                33
 12/03/2021   06:22:45   ( -78.04,-116.51) 12/03/2021   06:22:33  ( -78.05,-116.50)    1.29                12
 12/03/2021   07:13:32   (  78.06,  50.70) 12/03/2021   07:13:27  (  78.06,  50.81)    2.49                 5
 12/03/2021   08:04:17   ( -78.06,-142.00) 12/03/2021   08:04:33  ( -78.06,-141.96)    0.77                16
 12/03/2021   08:55:04   (  78.08,  25.21) 12/03/2021   08:55:27  (  78.07,  25.35)    3.39                23
 12/03/2021   09:45:49   ( -78.08,-167.48) 12/03/2021   09:46:33  ( -78.07,-167.42)    2.07                44
 12/03/2021   10:36:35   (  78.06,  -0.06) 12/03/2021   10:37:27  (  78.07,  -0.11)    1.98                52
 12/03/2021   11:27:20   ( -78.06, 167.25) 12/03/2021   11:28:33  ( -78.07, 167.12)    3.30                73
 12/03/2021   12:18:14   (  78.36, -27.08) 12/03/2021   12:19:21  (  78.30, -24.22)   64.64                67