Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/27/2023   11:30:27   (   0.11,-139.57) (   0.47,-141.28)  194.32                80
 04/28/2023   11:09:24   (   0.12,-140.04) (  -0.58,-136.84)  365.32                80
 04/29/2023   23:34:36   (  -0.10,-140.74) (  -0.47,-142.29)  177.14                80
 04/30/2023   23:13:35   (  -0.12,-141.21) (   0.64,-137.86)  382.32                80
 05/02/2023   11:38:37   (   0.10,-141.97) (   0.41,-143.27)  148.79                80
 05/03/2023   11:17:36   (   0.11,-142.43) (  -0.70,-138.84)  410.24                80
 05/04/2023   23:42:48   (  -0.09,-143.12) (  -0.34,-144.29)  133.52                80
 05/05/2023   23:21:46   (  -0.10,-143.58) (   0.71,-139.84)  424.94                80
 05/07/2023   11:46:49   (   0.07,-144.32) (   0.28,-145.27)  108.13                80
 05/08/2023   11:25:46   (   0.09,-144.77) (  -0.78,-140.82)  449.60                80
 05/09/2023   23:50:59   (  -0.06,-145.43) (  -0.25,-146.28)   96.24                80
 05/10/2023   23:29:56   (  -0.08,-145.88) (   0.81,-141.84)  461.07                80