Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 10.  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)
 01/11/2025   22:34:55   (  -0.01,-136.99) (  -0.18,-137.64)   75.21                80
 01/12/2025   22:18:49   (  -0.01,-136.98) (   0.87,-133.11)  441.31                80
 01/14/2025   10:40:33   (   0.01,-136.96) (   0.32,-138.37)  159.47                80
 01/15/2025   10:19:06   (   0.01,-136.95) (  -0.68,-133.82)  356.81                80
 01/16/2025   22:40:58   (  -0.01,-136.94) (  -0.49,-139.11)  247.68                80
 01/17/2025   22:24:51   (  -0.00,-136.93) (   0.51,-134.57)  268.63                80
 01/19/2025   10:46:35   (   0.00,-136.92) (   0.66,-139.83)  332.20                80
 01/20/2025   10:25:07   (   0.00,-136.90) (  -0.34,-135.29)  183.80                80
 01/21/2025   22:47:00   (  -0.01,-136.88) (  -0.81,-140.58)  421.50                80
 01/22/2025   22:30:52   (  -0.00,-136.86) (   0.19,-136.04)   94.20                80