Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2023   05:01:28   (  -0.43, 139.75) (  -0.90, 137.70)  234.81                80
 08/22/2023   04:40:29   (  -0.43, 138.73) (   0.35, 142.10)  383.94                80
 08/23/2023   17:05:33   (   0.42, 137.21) (   0.55, 136.66)   62.32                80
 08/26/2023   05:07:08   (  -0.42, 134.59) (  -0.18, 135.58)  112.79                80
 08/27/2023   17:32:12   (   0.41, 133.05) (   1.07, 130.14)  332.43                80
 08/28/2023   17:11:13   (   0.41, 132.03) (  -0.18, 134.54)  286.21                80
 08/30/2023   05:36:27   (  -0.40, 130.43) (  -0.69, 129.05)  156.54                80
 08/31/2023   05:15:26   (  -0.40, 129.40) (   0.51, 133.46)  463.64                80
 09/01/2023   17:37:51   (   0.39, 127.84) (   0.37, 128.02)   20.64                80
 09/03/2023   06:03:05   (  -0.38, 126.23) (  -1.24, 122.54)  421.31                80