Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 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)
 03/13/2022   10:26:41   (   0.07,-127.90) (   0.47,-129.74)  209.16                80
 03/14/2022   10:05:37   (   0.07,-127.94) (  -0.52,-125.29)  301.80                80
 03/15/2022   22:30:46   (  -0.08,-127.98) (  -0.70,-130.71)  311.23                80
 03/16/2022   22:09:43   (  -0.08,-128.02) (   0.28,-126.26)  199.65                80
 03/18/2022   10:34:44   (   0.08,-128.07) (   0.86,-131.66)  408.35                80
 03/19/2022   10:13:41   (   0.08,-128.10) (  -0.12,-127.20)  102.12                80
 03/21/2022   22:20:27   (  -0.08,-128.16) (  -0.11,-128.17)    2.95                80
 03/24/2022   10:24:24   (   0.09,-128.22) (   0.31,-129.11)  101.54                80
 03/25/2022   10:03:21   (   0.09,-128.24) (  -0.73,-124.67)  407.87                80