Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 22.  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)
 11/04/2021   05:22:41   ( -78.11,-102.14) 11/04/2021   05:21:27  ( -78.10,-102.02)    3.27                74
 11/04/2021   06:13:25   (  78.09,  65.30) 11/04/2021   06:12:27  (  78.09,  65.14)    3.62                58
 11/04/2021   07:04:10   ( -78.12,-127.54) 11/04/2021   07:03:27  ( -78.11,-127.47)    1.87                43
 11/04/2021   07:54:54   (  78.09,  39.91) 11/04/2021   07:54:26  (  78.13,  39.91)    3.93                28
 11/04/2021   08:45:39   ( -78.12,-152.93) 11/04/2021   08:45:27  ( -78.12,-152.92)    0.70                12
 11/04/2021   09:36:24   (  78.14,  14.30) 11/04/2021   09:36:26  (  78.14,  14.46)    3.61                 2
 11/04/2021   10:27:08   ( -78.13,-178.32) 11/04/2021   10:27:27  ( -78.12,-178.37)    1.25                19
 11/04/2021   11:17:53   (  78.14, -11.09) 11/04/2021   11:18:26  (  78.14, -11.00)    2.17                33
 11/04/2021   12:08:37   ( -78.13, 156.29) 11/04/2021   12:09:27  ( -78.13, 156.18)    2.59                50
 11/04/2021   12:59:22   (  78.15, -36.49) 11/04/2021   13:00:26  (  78.15, -36.46)    0.88                64
 11/04/2021   13:50:13   ( -78.41, 129.36) 11/04/2021   13:51:21  ( -78.36, 132.08)   61.35                68