Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2023   10:20:41   (   0.09,-128.18) (  -0.64,-124.90)  372.86                80
 02/20/2023   22:43:13   (  -0.09,-128.16) (  -0.56,-130.33)  246.71                80
 02/21/2023   22:22:12   (  -0.09,-128.15) (   0.42,-125.88)  258.49                80
 02/23/2023   10:44:36   (   0.09,-128.12) (   0.79,-131.28)  359.82                80
 02/24/2023   10:28:55   (   0.09,-128.11) (  -0.19,-126.83)  145.55                80
 02/25/2023   22:51:26   (  -0.09,-128.09) (  -1.04,-132.25)  473.78                80
 02/26/2023   22:30:25   (  -0.10,-128.08) (  -0.05,-127.80)   31.09                80
 03/01/2023   10:34:27   (   0.10,-128.01) (   0.24,-128.75)   83.76                80
 03/02/2023   10:18:46   (   0.11,-127.99) (  -0.75,-124.30)  421.10                80
 03/03/2023   22:41:16   (  -0.11,-127.97) (  -0.51,-129.72)  198.86                80
 03/04/2023   22:20:15   (  -0.12,-127.95) (   0.50,-125.27)  305.55                80