Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 03/20/2025   08:39:30   (  -0.04,-104.38) (   0.79,-108.12)  425.94                80
 03/21/2025   08:18:05   (  -0.04,-104.38) (  -0.21,-103.59)   90.32                80
 03/23/2025   20:23:56   (   0.03,-104.41) (   0.05,-104.36)    5.76                80
 03/26/2025   08:26:56   (  -0.02,-104.37) (   0.16,-105.08)   81.68                80
 03/27/2025   08:05:30   (  -0.02,-104.36) (  -0.85,-100.55)  434.78                80
 03/28/2025   20:27:25   (   0.01,-104.40) (  -0.33,-105.85)  166.01                80
 03/29/2025   20:11:20   (   0.02,-104.39) (   0.69,-101.31)  350.63                80
 03/31/2025   08:33:06   (  -0.02,-104.36) (   0.46,-106.58)  253.06                80
 04/01/2025   08:11:40   (  -0.02,-104.35) (  -0.51,-102.04)  263.21                80