Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/14/2022   10:05:37   (   0.07,-127.94) (  -0.54,-125.29)  302.03                80
 03/15/2022   22:30:46   (  -0.08,-127.99) (  -0.72,-130.70)  310.65                80
 03/16/2022   22:09:43   (  -0.08,-128.02) (   0.34,-126.27)  200.40                80
 03/18/2022   10:34:42   (   0.08,-128.07) (   0.89,-131.65)  407.43                80
 03/19/2022   10:13:39   (   0.08,-128.10) (  -0.13,-127.20)  103.29                80
 03/21/2022   22:17:44   (  -0.08,-128.16) (  -0.07,-128.17)    1.45                80
 03/24/2022   10:24:19   (   0.09,-128.23) (   0.26,-129.09)   98.54                80
 03/25/2022   10:03:14   (   0.09,-128.24) (  -0.72,-124.64)  411.31                80
 03/26/2022   22:25:41   (  -0.10,-128.26) (  -0.52,-130.05)  203.68                80
 03/27/2022   22:09:57   (  -0.10,-128.28) (   0.48,-125.59)  306.23                80