Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2023   10:17:39   (   0.00,-128.06) (  -0.77,-124.63)  390.25                80
 01/13/2023   22:40:13   (   0.00,-128.03) (  -0.48,-130.07)  232.89                80
 01/14/2023   22:19:14   (  -0.00,-128.04) (   0.54,-125.63)  275.05                80
 01/16/2023   10:41:39   (   0.00,-128.12) (   0.69,-131.03)  331.89                80
 01/17/2023   10:25:59   (   0.00,-128.14) (  -0.33,-126.59)  175.82                80
 01/18/2023   22:48:34   (  -0.01,-128.10) (  -0.90,-132.03)  448.10                80
 01/19/2023   22:27:34   (  -0.01,-128.10) (   0.12,-127.59)   58.75                80
 01/22/2023   10:31:40   (   0.00,-128.17) (   0.08,-128.56)   43.70                80
 01/23/2023   10:16:01   (   0.00,-128.18) (  -0.94,-124.12)  463.03                80
 01/24/2023   22:38:34   (   0.00,-128.13) (  -0.32,-129.55)  161.33                80
 01/25/2023   22:17:34   (   0.00,-128.13) (   0.71,-125.11)  345.21                80