Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 2 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2022   22:46:12   (   0.04,-137.19) (   0.55,-134.98)  252.56                80
 02/17/2022   11:08:33   (  -0.03,-137.20) (   0.67,-140.37)  361.43                80
 02/18/2022   10:47:30   (  -0.03,-137.19) (  -0.30,-135.92)  145.46                80
 02/19/2022   23:09:59   (   0.02,-137.18) (  -0.89,-141.34)  473.89                80
 02/20/2022   22:54:15   (   0.03,-137.18) (   0.08,-136.89)   32.61                80
 02/23/2022   10:58:13   (  -0.02,-137.16) (   0.16,-137.82)   76.80                80
 02/24/2022   10:37:11   (  -0.02,-137.14) (  -0.88,-133.38)  428.92                80
 02/25/2022   22:59:39   (   0.01,-137.11) (  -0.37,-138.80)  192.32                80
 02/26/2022   22:43:56   (  -0.00,-137.09) (   0.61,-134.34)  313.09                80
 02/28/2022   11:06:17   (   0.01,-137.07) (   0.59,-139.73)  303.71                80