Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 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)
 01/28/2022   10:35:41   (  -0.04,-128.32) (   0.88,-132.27)  450.97                80
 01/29/2022   10:14:38   (  -0.03,-128.31) (  -0.14,-127.83)   55.05                80
 01/31/2022   22:18:44   (   0.02,-128.30) (  -0.11,-128.80)   57.46                80
 02/01/2022   22:03:02   (   0.03,-128.29) (   0.91,-124.35)  448.25                80
 02/03/2022   10:25:23   (  -0.01,-128.25) (   0.34,-129.74)  169.71                80
 02/04/2022   10:04:21   (  -0.02,-128.24) (  -0.68,-125.30)  335.98                80
 02/05/2022   22:26:50   (   0.02,-128.24) (  -0.51,-130.72)  282.63                80
 02/06/2022   22:11:06   (   0.02,-128.23) (   0.45,-126.27)  223.13                80
 02/08/2022   10:33:28   (  -0.01,-128.19) (   0.80,-131.65)  395.24                80
 02/09/2022   10:12:25   (  -0.00,-128.17) (  -0.22,-127.21)  110.24                80