Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2023   06:38:02   (  -0.34, 116.87) (  -1.01, 113.90)  338.37                80
 09/13/2023   06:17:01   (  -0.35, 115.83) (   0.21, 118.31)  283.25                80
 09/14/2023   18:42:06   (   0.33, 114.26) (   0.65, 112.87)  158.64                80
 09/15/2023   18:21:05   (   0.35, 113.22) (  -0.57, 117.28)  462.74                80
 09/17/2023   06:43:40   (  -0.33, 111.59) (  -0.26, 111.79)   23.91                80
 09/18/2023   19:08:44   (   0.31, 109.99) (   1.12, 106.34)  415.77                80
 09/19/2023   18:47:43   (   0.33, 108.95) (  -0.10, 110.75)  206.31                80
 09/21/2023   07:12:57   (  -0.31, 107.32) (  -0.77, 105.27)  233.12                80
 09/22/2023   06:51:56   (  -0.32, 106.26) (   0.46, 109.68)  390.12                80
 09/23/2023   19:17:01   (   0.30, 104.66) (   0.40, 104.24)   48.68                80
 09/25/2023   07:39:34   (  -0.27, 103.04) (  -1.26,  98.76)  488.77                80