Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 5 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2025   22:30:32   (  -0.00,-137.00) (   0.18,-136.06)  106.63                80
 05/16/2025   10:52:23   (  -0.00,-137.00) (   0.98,-141.35)  495.96                80
 05/17/2025   10:30:59   (  -0.01,-136.99) (  -0.04,-136.82)   19.34                80
 05/19/2025   22:34:13   (   0.01,-136.98) (  -0.13,-137.60)   71.13                80
 05/20/2025   22:18:10   (   0.01,-136.97) (   0.90,-133.08)  443.95                80
 05/22/2025   10:39:59   (  -0.02,-136.95) (   0.31,-138.35)  159.50                80
 05/23/2025   10:18:35   (  -0.02,-136.94) (  -0.72,-133.83)  355.18                80
 05/24/2025   22:40:33   (   0.02,-136.93) (  -0.47,-139.14)  251.78                80
 05/25/2025   22:24:29   (   0.02,-136.91) (   0.56,-134.61)  262.34                80
 05/27/2025   10:43:39   (  -0.03,-136.88) (   0.63,-139.89)  342.76                80
 05/28/2025   10:27:35   (  -0.03,-136.85) (  -0.40,-135.36)  170.84                80