Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/18/2022   10:34:44   (   0.08,-128.07) (   0.89,-131.65)  407.92                80
 03/19/2022   10:13:40   (   0.08,-128.10) (  -0.10,-127.20)  102.70                80
 03/21/2022   22:17:47   (  -0.08,-128.17) (  -0.07,-128.18)    1.48                80
 03/24/2022   10:24:24   (   0.09,-128.23) (   0.27,-129.12)  100.19                80
 03/25/2022   10:03:20   (   0.09,-128.25) (  -0.72,-124.66)  409.34                80
 03/26/2022   22:25:50   (  -0.10,-128.28) (  -0.50,-130.09)  205.67                80
 03/27/2022   22:10:06   (  -0.10,-128.30) (   0.50,-125.63)  303.84                80
 03/29/2022   10:32:26   (   0.11,-128.33) (   0.74,-131.01)  306.42                80
 03/30/2022   10:11:23   (   0.11,-128.35) (  -0.31,-126.57)  203.00                80