Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 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)
 09/17/2023   06:43:39   (  -0.34, 111.60) (  -0.28, 111.80)   22.09                80
 09/18/2023   19:08:44   (   0.31, 110.02) (   1.14, 106.35)  418.06                80
 09/19/2023   18:47:43   (   0.33, 108.98) (  -0.09, 110.76)  203.65                80
 09/21/2023   07:12:56   (  -0.31, 107.35) (  -0.79, 105.28)  236.25                80
 09/22/2023   06:51:56   (  -0.32, 106.30) (   0.45, 109.69)  386.65                80
 09/23/2023   19:17:00   (   0.30, 104.70) (   0.41, 104.24)   52.70                80
 09/25/2023   07:39:34   (  -0.27, 103.08) (  -1.27,  98.76)  493.31                80
 09/26/2023   07:18:33   (  -0.29, 102.02) (  -0.04, 103.17)  130.36                80
 09/27/2023   19:43:37   (   0.26, 100.41) (   0.89,  97.72)  306.37                80
 09/28/2023   19:22:37   (   0.28,  99.35) (  -0.35, 102.13)  317.04                80
 09/30/2023   07:47:50   (  -0.26,  97.71) (  -0.49,  96.65)  121.48                80