Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 30.  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)
 04/01/2025   22:34:16   (   0.00,-137.00) (  -0.15,-137.59)   66.92                80
 04/02/2025   22:15:30   (   0.00,-137.00) (   0.89,-133.06)  449.72                80
 04/04/2025   10:39:55   (   0.00,-136.99) (   0.31,-138.31)  150.96                80
 04/05/2025   10:18:30   (   0.00,-136.99) (  -0.72,-133.78)  365.40                80
 04/06/2025   22:43:04   (  -0.00,-136.98) (  -0.47,-139.08)  239.02                80
 04/07/2025   22:24:18   (  -0.00,-136.97) (   0.52,-134.54)  277.34                80
 04/09/2025   10:43:24   (   0.00,-136.96) (   0.62,-139.81)  323.61                80
 04/10/2025   10:27:18   (   0.00,-136.96) (  -0.37,-135.26)  192.65                80
 04/11/2025   22:46:32   (  -0.00,-136.95) (  -0.80,-140.56)  411.98                80
 04/12/2025   22:30:25   (   0.00,-136.94) (   0.20,-136.02)  103.98                80