Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 8 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)
 08/21/2023   05:01:28   (  -0.43, 139.75) (  -0.89, 137.69)  234.84                80
 08/22/2023   04:40:29   (  -0.43, 138.73) (   0.36, 142.10)  383.92                80
 08/23/2023   17:05:33   (   0.42, 137.21) (   0.54, 136.66)   62.37                80
 08/26/2023   05:07:08   (  -0.42, 134.59) (  -0.17, 135.57)  112.76                80
 08/27/2023   17:32:12   (   0.41, 133.05) (   1.06, 130.13)  332.49                80
 08/28/2023   17:11:12   (   0.41, 132.03) (  -0.14, 134.55)  286.14                80
 08/30/2023   05:36:27   (  -0.40, 130.43) (  -0.68, 129.05)  156.62                80
 08/31/2023   05:15:27   (  -0.40, 129.40) (   0.52, 133.46)  463.56                80
 09/01/2023   17:37:51   (   0.39, 127.84) (   0.36, 128.02)   20.45                80