Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2023   19:43:37   (   0.26, 100.45) (   0.90,  97.73)  310.34                80
 09/28/2023   19:22:36   (   0.28,  99.40) (  -0.35, 102.14)  312.68                80
 09/30/2023   07:47:50   (  -0.26,  97.76) (  -0.49,  96.65)  125.88                80
 10/01/2023   07:26:48   (  -0.28,  96.70) (   0.71, 101.07)  498.86                80
 10/02/2023   19:49:12   (   0.26,  95.07) (   0.13,  95.62)   62.66                80
 10/04/2023   08:14:25   (  -0.23,  93.44) (  -1.01,  90.15)  376.42                80
 10/05/2023   07:53:24   (  -0.25,  92.37) (   0.26,  94.55)  248.74                80
 10/06/2023   20:18:29   (   0.22,  90.73) (   0.58,  89.10)  185.37                80
 10/07/2023   19:57:27   (   0.24,  89.67) (  -0.62,  93.52)  438.98                80
 10/09/2023   08:19:59   (  -0.22,  88.03) (  -0.22,  88.04)    1.38                80
 10/10/2023   20:45:04   (   0.18,  86.37) (   1.06,  82.59)  430.95                80