Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/26/2022   22:13:20   (   0.04,-128.35) (   0.37,-126.89)  166.69                80
 01/28/2022   10:35:41   (  -0.04,-128.33) (   0.87,-132.28)  450.76                80
 01/29/2022   10:14:38   (  -0.03,-128.31) (  -0.14,-127.83)   55.25                80
 01/31/2022   22:18:44   (   0.02,-128.30) (  -0.10,-128.80)   57.59                80
 02/01/2022   22:03:02   (   0.02,-128.28) (   0.92,-124.36)  448.16                80
 02/03/2022   10:25:23   (  -0.02,-128.26) (   0.33,-129.74)  169.80                80
 02/04/2022   10:04:21   (  -0.02,-128.24) (  -0.69,-125.30)  335.93                80
 02/05/2022   22:26:49   (   0.02,-128.23) (  -0.56,-130.71)  283.00                80
 02/06/2022   22:11:06   (   0.02,-128.22) (   0.46,-126.27)  222.74                80
 02/08/2022   10:33:28   (  -0.01,-128.19) (   0.78,-131.66)  395.33                80