Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/04/2022   10:22:05   (   0.11,-128.40) (   0.14,-128.46)    7.99                80
 04/05/2022   10:01:01   (   0.11,-128.40) (  -0.86,-124.01)  499.94                80
 04/06/2022   22:23:31   (  -0.11,-128.42) (  -0.36,-129.43)  116.45                80
 04/07/2022   22:07:47   (  -0.12,-128.42) (   0.64,-124.98)  391.26                80
 04/09/2022   10:30:06   (   0.12,-128.40) (   0.57,-130.36)  223.60                80
 04/10/2022   10:09:03   (   0.12,-128.40) (  -0.43,-125.91)  283.67                80
 04/11/2022   22:31:32   (  -0.12,-128.40) (  -0.78,-131.33)  333.94                80
 04/12/2022   22:15:49   (  -0.13,-128.40) (   0.22,-126.88)  173.33                80
 04/14/2022   10:38:08   (   0.12,-128.39) (   0.98,-132.26)  441.82                80
 04/15/2022   10:17:05   (   0.13,-128.38) (  -0.02,-127.81)   65.04                80
 04/17/2022   22:21:09   (  -0.12,-128.36) (  -0.23,-128.77)   47.29                80