Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 11 25.  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   02:59:48   ( -77.69, -64.02) 12/03/2021   02:58:42  ( -77.72, -67.41)   80.30                66
 12/03/2021   03:50:43   (  78.04, 101.53) 12/03/2021   03:49:28  (  78.02, 101.59)    2.18                75
 12/03/2021   04:41:28   ( -78.03, -91.11) 12/03/2021   04:40:34  ( -78.03, -91.16)    1.01                54
 12/03/2021   05:32:15   (  78.05,  76.07) 12/03/2021   05:31:28  (  78.03,  76.13)    2.68                47
 12/03/2021   06:23:00   ( -78.04,-116.57) 12/03/2021   06:22:34  ( -78.03,-116.62)    1.46                26
 12/03/2021   07:13:47   (  78.06,  50.62) 12/03/2021   07:13:28  (  78.04,  50.67)    3.29                19
 12/03/2021   08:04:32   ( -78.05,-142.02) 12/03/2021   08:04:34  ( -78.04,-142.08)    2.08                 2
 12/03/2021   08:55:19   (  78.08,  25.17) 12/03/2021   08:55:28  (  78.04,  25.21)    3.95                 9
 12/03/2021   09:46:04   ( -78.07,-167.47) 12/03/2021   09:46:34  ( -78.05,-167.54)    2.77                30
 12/03/2021   10:36:50   (  78.05,  -0.07) 12/03/2021   10:37:27  (  78.09,  -0.03)    4.14                37
 12/03/2021   11:27:36   ( -78.08, 167.08) 12/03/2021   11:28:34  ( -78.05, 167.00)    3.47                58
 12/03/2021   12:18:22   (  78.06, -25.52) 12/03/2021   12:19:27  (  78.09, -25.49)    3.36                65