Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 28.  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)
 11/28/2025   22:18:20   (  -0.00,-137.00) (   0.87,-133.04)  451.62                80
 11/30/2025   10:40:10   (   0.00,-136.99) (   0.30,-138.32)  151.01                80
 12/01/2025   10:18:47   (   0.00,-136.98) (  -0.74,-133.80)  363.95                80
 12/02/2025   22:40:47   (  -0.00,-136.97) (  -0.46,-139.11)  242.85                80
 12/03/2025   22:24:43   (  -0.00,-136.96) (   0.52,-134.57)  271.51                80
 12/05/2025   10:46:34   (  -0.00,-136.93) (   0.65,-139.85)  332.89                80
 12/06/2025   10:25:11   (  -0.00,-136.91) (  -0.39,-135.33)  180.90                80
 12/07/2025   22:47:09   (   0.00,-136.89) (  -0.85,-140.63)  427.35                80
 12/08/2025   22:31:07   (  -0.00,-136.87) (   0.19,-136.12)   86.52                80
 12/11/2025   10:34:14   (   0.00,-136.82) (  -0.00,-136.86)    4.76                80