Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 7 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)
 07/31/2025   10:25:23   (   0.02,-137.00) (  -0.32,-135.47)  174.59                80
 08/01/2025   22:47:21   (  -0.02,-137.00) (  -0.84,-140.78)  429.92                80
 08/02/2025   22:31:15   (  -0.02,-137.00) (   0.12,-136.24)   86.05                80
 08/05/2025   10:34:18   (   0.03,-136.97) (   0.06,-136.97)    3.03                80
 08/07/2025   22:34:50   (  -0.04,-136.95) (  -0.24,-137.75)   91.64                80
 08/08/2025   22:18:45   (  -0.04,-136.93) (   0.79,-133.22)  423.28                80
 08/10/2025   10:40:33   (   0.05,-136.91) (   0.42,-138.48)  180.23                80
 08/11/2025   10:19:08   (   0.05,-136.89) (  -0.60,-133.95)  334.35                80
 08/12/2025   22:41:04   (  -0.05,-136.86) (  -0.57,-139.26)  272.69                80