Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2022   10:32:27   (   0.11,-128.34) (   0.68,-131.02)  304.58                80
 03/30/2022   10:11:23   (   0.11,-128.36) (  -0.31,-126.57)  205.04                80
 03/31/2022   22:33:52   (  -0.11,-128.41) (  -0.92,-131.99)  408.15                80
 04/01/2022   22:18:09   (  -0.11,-128.43) (   0.08,-127.54)  101.53                80
 04/04/2022   10:22:06   (   0.11,-128.46) (   0.09,-128.48)    2.81                80
 04/06/2022   22:23:32   (  -0.11,-128.51) (  -0.31,-129.45)  106.53                80
 04/07/2022   22:07:48   (  -0.12,-128.52) (   0.69,-124.99)  402.38                80
 04/09/2022   10:30:07   (   0.12,-128.53) (   0.53,-130.37)  210.59                80
 04/10/2022   10:09:04   (   0.12,-128.53) (  -0.47,-125.92)  297.89                80