Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2023   10:26:58   (   0.12,-127.85) (  -0.22,-126.20)  187.40                80
 03/08/2023   22:49:29   (  -0.12,-127.84) (  -0.99,-131.63)  432.76                80
 03/09/2023   22:28:28   (  -0.12,-127.81) (   0.02,-127.18)   71.09                80
 03/12/2023   10:32:30   (   0.13,-127.70) (   0.19,-128.13)   47.51                80
 03/13/2023   10:16:47   (   0.13,-127.67) (  -0.76,-123.67)  455.97                80
 03/14/2023   22:36:38   (  -0.13,-127.63) (  -0.43,-129.09)  165.72                80
 03/15/2023   22:18:16   (  -0.14,-127.59) (   0.53,-124.64)  337.09                80
 03/17/2023   10:40:38   (   0.14,-127.50) (   0.73,-130.02)  286.87                80
 03/18/2023   10:24:57   (   0.14,-127.46) (  -0.30,-125.57)  215.89                80
 03/19/2023   22:44:47   (  -0.14,-127.42) (  -0.94,-130.99)  406.12                80
 03/20/2023   22:29:05   (  -0.14,-127.38) (   0.03,-126.53)   96.52                80