Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 2 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/09/2023   22:45:04   (  -0.06,-128.26) (  -0.66,-130.92)  303.27                80
 02/10/2023   22:24:04   (  -0.06,-128.25) (   0.34,-126.47)  202.53                80
 02/12/2023   10:46:29   (   0.06,-128.25) (   0.86,-131.88)  412.69                80
 02/13/2023   10:30:49   (   0.07,-128.24) (  -0.14,-127.43)   92.97                80
 02/15/2023   22:34:59   (  -0.08,-128.20) (  -0.14,-128.40)   24.02                80
 02/16/2023   22:13:59   (  -0.08,-128.18) (   0.86,-123.96)  480.73                80
 02/18/2023   10:36:24   (   0.08,-128.16) (   0.33,-129.36)  136.55                80
 02/19/2023   10:20:43   (   0.09,-128.14) (  -0.63,-124.91)  368.22                80
 02/20/2023   22:43:15   (  -0.09,-128.11) (  -0.59,-130.34)  254.01                80
 02/21/2023   22:22:15   (  -0.09,-128.09) (   0.42,-125.90)  250.46                80