Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 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)
 07/13/2023   01:53:53   (   0.31, 179.34) (   1.12,-176.96)  420.74                80
 07/14/2023   14:19:00   (  -0.34, 177.81) (  -0.27, 177.58)   26.60                80
 07/16/2023   02:41:36   (   0.37, 176.25) (  -0.58, 172.08)  474.92                80
 07/17/2023   02:20:36   (   0.35, 175.24) (   0.63, 176.49)  142.63                80
 07/18/2023   14:45:44   (  -0.38, 173.70) (   0.21, 171.03)  304.55                80
 07/19/2023   14:24:44   (  -0.36, 172.70) (  -1.00, 175.44)  312.76                80
 07/21/2023   02:49:59   (   0.39, 171.14) (   0.15, 169.94)  135.66                80
 07/22/2023   02:28:59   (   0.37, 170.13) (   1.30, 174.36)  481.97                80
 07/23/2023   14:51:26   (  -0.40, 168.60) (  -0.47, 168.90)   34.90                80
 07/25/2023   03:16:40   (   0.42, 167.04) (  -0.43, 163.42)  413.94                80
 07/26/2023   02:55:41   (   0.40, 166.04) (   0.79, 167.83)  203.38                80