Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 8 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/17/2023   04:32:09   (  -0.43, 143.88) (  -0.38, 144.22)   37.94                80
 08/18/2023   16:57:14   (   0.43, 142.36) (   1.23, 138.77)  409.21                80
 08/19/2023   16:36:13   (   0.43, 141.35) (   0.04, 143.19)  208.79                80
 08/21/2023   05:01:29   (  -0.43, 139.74) (  -0.87, 137.69)  233.70                80
 08/22/2023   04:40:28   (  -0.42, 138.72) (   0.32, 142.10)  385.27                80
 08/23/2023   17:05:33   (   0.42, 137.19) (   0.52, 136.65)   60.83                80
 08/26/2023   05:07:07   (  -0.41, 134.57) (  -0.21, 135.58)  115.06                80
 08/27/2023   17:32:13   (   0.40, 133.03) (   1.04, 130.13)  330.01                80
 08/28/2023   17:11:12   (   0.40, 132.01) (  -0.16, 134.54)  288.84                80
 08/30/2023   05:36:26   (  -0.40, 130.40) (  -0.72, 129.06)  153.41                80