Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2026 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2026   23:06:16   (   0.43,-104.70) (  -0.30,-107.89)  365.10                80
 07/22/2026   22:47:19   (   0.44,-104.70) (   0.73,-103.29)  159.76                80
 07/24/2026   11:08:50   (  -0.44,-104.70) (   0.40,-108.44)  425.80                80
 07/25/2026   10:47:13   (  -0.45,-104.70) (  -0.63,-103.84)   98.73                80
 07/26/2026   23:11:31   (   0.44,-104.70) (  -0.54,-109.01)  491.81                80
 07/27/2026   22:49:54   (   0.45,-104.70) (   0.49,-104.40)   32.93                80
 07/30/2026   10:55:08   (  -0.46,-104.70) (  -0.39,-104.95)   27.84                80
 07/31/2026   10:33:32   (  -0.47,-104.71) (  -1.49,-100.36)  496.83                80
 08/01/2026   22:57:49   (   0.46,-104.70) (   0.26,-105.52)   93.13                80
 08/02/2026   22:36:13   (   0.46,-104.70) (   1.36,-100.93)  431.71                80
 08/04/2026   11:00:23   (  -0.45,-104.71) (  -0.16,-106.06)  153.22                80