Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2022   10:15:39   (   0.40,-128.08) (  -0.03,-126.29)  204.36                80
 08/19/2022   22:38:06   (  -0.40,-128.04) (  -1.22,-131.69)  415.89                80
 08/20/2022   22:22:20   (  -0.40,-128.04) (  -0.24,-127.23)   91.94                80
 08/23/2022   10:26:13   (   0.39,-128.05) (   0.39,-128.15)   11.37                80
 08/24/2022   10:05:07   (   0.38,-128.04) (  -0.59,-123.69)  495.64                80
 08/25/2022   22:27:34   (  -0.39,-127.99) (  -0.65,-129.09)  126.35                80
 08/26/2022   22:11:49   (  -0.38,-127.98) (   0.39,-124.64)  381.00                80
 08/28/2022   10:34:06   (   0.38,-128.00) (   0.86,-130.00)  228.99                80
 08/29/2022   10:13:01   (   0.38,-127.98) (  -0.18,-125.55)  277.56                80
 08/30/2022   22:35:27   (  -0.38,-127.92) (  -1.05,-130.96)  346.29                80
 08/31/2022   22:19:42   (  -0.38,-127.90) (  -0.06,-126.49)  160.60                80