Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/28/2023   11:09:25   (   0.12,-140.04) (  -0.61,-136.84)  365.13                80
 04/29/2023   23:34:37   (  -0.10,-140.74) (  -0.44,-142.30)  177.22                80
 04/30/2023   23:13:34   (  -0.12,-141.21) (   0.62,-137.85)  382.28                80
 05/02/2023   11:38:38   (   0.10,-141.97) (   0.37,-143.28)  148.89                80
 05/03/2023   11:17:35   (   0.11,-142.43) (  -0.69,-138.83)  410.19                80
 05/04/2023   23:42:47   (  -0.09,-143.12) (  -0.34,-144.29)  133.41                80
 05/05/2023   23:21:45   (  -0.10,-143.58) (   0.73,-139.85)  425.11                80
 05/07/2023   11:46:47   (   0.07,-144.32) (   0.31,-145.26)  107.95                80
 05/08/2023   11:25:46   (   0.09,-144.77) (  -0.82,-140.83)  449.88                80
 05/09/2023   23:50:57   (  -0.06,-145.43) (  -0.25,-146.27)   95.75                80
 05/10/2023   23:29:55   (  -0.08,-145.88) (   0.83,-141.83)  461.66                80