Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 2 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)
 02/07/2023   10:38:12   (   0.06,-128.28) (   0.43,-129.93)  188.70                80
 02/08/2023   10:22:31   (   0.06,-128.28) (  -0.56,-125.49)  317.56                80
 02/09/2023   22:45:05   (  -0.06,-128.25) (  -0.63,-130.92)  303.87                80
 02/10/2023   22:24:04   (  -0.06,-128.25) (   0.36,-126.48)  201.88                80
 02/12/2023   10:46:29   (   0.06,-128.25) (   0.89,-131.87)  413.05                80
 02/13/2023   10:30:48   (   0.07,-128.24) (  -0.11,-127.43)   92.48                80
 02/15/2023   22:35:00   (  -0.08,-128.19) (  -0.13,-128.41)   25.02                80
 02/16/2023   22:13:59   (  -0.08,-128.17) (   0.88,-123.97)  479.51                80
 02/18/2023   10:36:24   (   0.08,-128.16) (   0.38,-129.36)  137.47                80
 02/19/2023   10:20:43   (   0.09,-128.14) (  -0.63,-124.91)  367.19                80
 02/20/2023   22:43:16   (  -0.09,-128.10) (  -0.59,-130.34)  255.63                80