Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2023   07:12:56   (  -0.31, 107.36) (  -0.81, 105.29)  237.40                80
 09/22/2023   06:51:56   (  -0.33, 106.31) (   0.43, 109.69)  385.35                80
 09/23/2023   19:17:00   (   0.30, 104.72) (   0.42, 104.25)   54.20                80
 09/25/2023   07:39:33   (  -0.27, 103.10) (  -1.28,  98.77)  495.14                80
 09/26/2023   07:18:33   (  -0.29, 102.05) (  -0.04, 103.17)  128.37                80
 09/27/2023   19:43:37   (   0.26, 100.43) (   0.89,  97.73)  308.47                80
 09/28/2023   19:22:37   (   0.28,  99.38) (  -0.36, 102.13)  314.78                80
 09/30/2023   07:47:50   (  -0.26,  97.74) (  -0.48,  96.65)  124.12                80
 10/02/2023   19:49:13   (   0.26,  95.04) (   0.13,  95.62)   65.52                80