Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2025 5 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2025   22:40:27   (   0.01,  61.51) (  -0.88,  65.28)  430.13                80
 05/03/2025   10:59:36   (   0.01,  61.54) (  -0.34,  60.05)  170.02                80
 05/04/2025   10:43:28   (  -0.00,  61.56) (   0.71,  64.62)  349.30                80
 05/05/2025   23:02:28   (  -0.02,  61.58) (   0.47,  59.42)  245.87                80
 05/06/2025   22:46:18   (  -0.01,  61.59) (  -0.53,  64.00)  273.80                80
 05/08/2025   11:05:29   (   0.03,  61.61) (  -0.63,  58.76)  325.76                80
 05/09/2025   10:49:20   (   0.02,  61.63) (   0.43,  63.32)  193.50                80
 05/10/2025   23:08:21   (  -0.05,  61.66) (   0.73,  58.12)  402.72                80
 05/11/2025   22:52:11   (  -0.04,  61.68) (  -0.27,  62.70)  116.41                80
 05/13/2025   11:11:20   (   0.07,  61.70) (  -0.93,  57.47)  483.69                80
 05/14/2025   10:55:12   (   0.06,  61.73) (   0.14,  62.03)   34.81                80