Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2023   06:43:39   (  -0.33, 111.60) (  -0.31, 111.80)   22.16                80
 09/18/2023   19:08:43   (   0.31, 110.02) (   1.17, 106.36)  418.08                80
 09/19/2023   18:47:43   (   0.33, 108.98) (  -0.06, 110.77)  203.63                80
 09/21/2023   07:12:57   (  -0.31, 107.35) (  -0.76, 105.27)  236.24                80
 09/22/2023   06:51:55   (  -0.32, 106.30) (   0.41, 109.70)  386.68                80
 09/23/2023   19:17:01   (   0.30, 104.70) (   0.39, 104.24)   52.76                80
 09/25/2023   07:39:34   (  -0.27, 103.08) (  -1.25,  98.75)  493.30                80
 09/26/2023   07:18:34   (  -0.29, 102.02) (  -0.01, 103.16)  130.37                80
 09/27/2023   19:43:38   (   0.26, 100.40) (   0.87,  97.72)  306.41                80
 09/28/2023   19:22:37   (   0.28,  99.35) (  -0.37, 102.12)  316.99                80