Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2023   22:17:15   (  -0.07,  61.20) (   0.08,  60.58)   71.57                80
 12/21/2023   21:56:07   (  -0.06,  61.21) (  -0.92,  65.05)  437.75                80
 12/23/2023   10:18:31   (   0.07,  61.33) (  -0.28,  59.67)  188.84                80
 12/24/2023   10:02:43   (   0.06,  61.34) (   0.72,  64.14)  320.77                80
 12/25/2023   22:24:56   (  -0.07,  61.24) (   0.49,  58.80)  278.32                80
 12/26/2023   22:03:49   (  -0.05,  61.26) (  -0.52,  63.28)  230.46                80
 12/28/2023   10:26:11   (   0.06,  61.39) (  -0.73,  57.90)  397.93                80
 12/29/2023   10:10:24   (   0.06,  61.41) (   0.28,  62.38)  111.21                80
 12/30/2023   22:32:37   (  -0.07,  61.30) (   0.91,  57.04)  487.17                80
 12/31/2023   22:11:30   (  -0.06,  61.32) (  -0.10,  61.51)   21.46                80