Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 3 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/30/2020   22:19:01   (   0.26,-127.92) (  -0.63,-131.90)  453.73                80
 03/31/2020   21:57:25   (   0.27,-127.89) (   0.41,-127.33)   64.14                80
 04/03/2020   10:02:39   (  -0.25,-127.77) (  -0.19,-127.93)   19.21                80
 04/04/2020   09:41:04   (  -0.26,-127.73) (  -1.24,-123.36)  497.88                80
 04/05/2020   22:05:22   (   0.24,-127.69) (   0.05,-128.59)  102.20                80
 04/06/2020   21:43:47   (   0.25,-127.65) (   1.09,-124.01)  414.94                80
 04/08/2020   10:07:57   (  -0.23,-127.56) (   0.12,-129.20)  185.99                80
 04/09/2020   09:46:20   (  -0.24,-127.52) (  -0.87,-124.61)  330.42                80
 04/10/2020   22:10:39   (   0.22,-127.46) (  -0.32,-129.84)  271.05                80
 04/11/2020   21:49:03   (   0.23,-127.42) (   0.73,-125.27)  245.46                80