Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 3.  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) (   0.11,-128.47)    8.15                80
 04/05/2022   10:01:02   (   0.11,-128.40) (  -0.89,-124.02)  499.95                80
 04/06/2022   22:23:31   (  -0.11,-128.42) (  -0.33,-129.44)  116.32                80
 04/07/2022   22:07:48   (  -0.12,-128.42) (   0.66,-124.99)  391.40                80
 04/09/2022   10:30:07   (   0.12,-128.41) (   0.55,-130.37)  223.46                80
 04/10/2022   10:09:04   (   0.12,-128.40) (  -0.45,-125.92)  283.83                80
 04/11/2022   22:31:33   (  -0.12,-128.41) (  -0.76,-131.34)  333.70                80
 04/12/2022   22:15:49   (  -0.13,-128.40) (   0.24,-126.89)  173.62                80
 04/14/2022   10:38:09   (   0.12,-128.39) (   0.97,-132.27)  441.57                80
 04/15/2022   10:17:04   (   0.13,-128.38) (   0.02,-127.80)   65.34                80