Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/19/2023   09:22:20   (  -0.02,-104.73) (   0.76,-108.02)  376.31                80
 07/20/2023   09:01:17   (  -0.02,-104.73) (  -0.28,-103.58)  131.32                80
 07/21/2023   21:23:46   (   0.02,-104.70) (  -0.98,-108.98)  488.09                80
 07/22/2023   21:08:03   (   0.02,-104.71) (   0.06,-104.53)   20.00                80
 07/25/2023   09:12:01   (  -0.02,-104.73) (   0.14,-105.46)   82.15                80
 07/26/2023   08:50:58   (  -0.02,-104.73) (  -0.85,-101.00)  425.59                80
 07/27/2023   21:13:27   (   0.02,-104.70) (  -0.35,-106.41)  194.44                80
 07/28/2023   20:57:43   (   0.02,-104.70) (   0.63,-101.95)  313.21                80
 07/30/2023   09:20:04   (  -0.03,-104.72) (   0.59,-107.33)  297.45                80
 07/31/2023   08:59:01   (  -0.03,-104.72) (  -0.46,-102.88)  209.80                80