Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 2.  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)
 04/02/2025   22:15:30   (   0.00,-137.00) (   0.89,-133.06)  449.60                80
 04/04/2025   10:37:15   (   0.00,-136.99) (   0.30,-138.31)  150.94                80
 04/05/2025   10:18:30   (   0.00,-136.99) (  -0.73,-133.78)  365.34                80
 04/06/2025   22:43:04   (  -0.00,-136.98) (  -0.46,-139.08)  239.40                80
 04/07/2025   22:21:38   (  -0.00,-136.97) (   0.53,-134.54)  276.89                80
 04/09/2025   10:43:24   (   0.00,-136.96) (   0.61,-139.81)  323.94                80
 04/10/2025   10:27:18   (   0.00,-136.95) (  -0.38,-135.27)  192.26                80
 04/11/2025   22:46:32   (  -0.00,-136.94) (  -0.79,-140.57)  412.69                80
 04/12/2025   22:30:26   (   0.00,-136.93) (   0.21,-136.03)  103.21                80
 04/14/2025   10:49:31   (  -0.00,-136.91) (   0.98,-141.28)  498.63                80
 04/15/2025   10:33:24   (  -0.01,-136.89) (  -0.02,-136.74)   16.83                80