Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2022   22:55:08   (   0.04,-137.18) (  -0.04,-137.54)   40.76                80
 03/20/2022   22:39:25   (   0.04,-137.17) (   0.95,-133.08)  465.61                80
 03/22/2022   11:01:45   (  -0.04,-137.16) (   0.24,-138.47)  149.87                80
 03/23/2022   10:40:42   (  -0.04,-137.14) (  -0.74,-134.02)  355.83                80
 03/24/2022   23:03:11   (   0.03,-137.11) (  -0.48,-139.44)  265.40                80
 03/25/2022   22:47:27   (   0.03,-137.09) (   0.51,-134.99)  239.94                80
 03/27/2022   11:09:47   (  -0.02,-137.06) (   0.72,-140.37)  376.66                80
 03/28/2022   10:48:43   (  -0.02,-137.04) (  -0.27,-135.91)  128.46                80
 03/29/2022   23:11:12   (   0.01,-137.00) (  -0.95,-141.34)  493.47                80
 03/30/2022   22:55:29   (   0.01,-136.98) (   0.04,-136.88)   11.63                80