Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 12.  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)
 01/12/2025   22:18:48   (  -0.01,-136.98) (   0.84,-133.10)  441.21                80
 01/14/2025   10:40:33   (   0.01,-136.96) (   0.34,-138.36)  159.63                80
 01/15/2025   10:19:06   (   0.02,-136.95) (  -0.71,-133.83)  356.71                80
 01/16/2025   22:40:58   (  -0.02,-136.94) (  -0.52,-139.11)  247.73                80
 01/17/2025   22:24:51   (  -0.02,-136.93) (   0.54,-134.58)  268.60                80
 01/19/2025   10:46:34   (   0.02,-136.91) (   0.69,-139.82)  332.36                80
 01/20/2025   10:25:08   (   0.02,-136.90) (  -0.37,-135.29)  183.61                80
 01/21/2025   22:46:59   (  -0.02,-136.87) (  -0.85,-140.57)  421.76                80
 01/22/2025   22:30:52   (  -0.02,-136.85) (   0.15,-136.03)   93.86                80
 01/25/2025   10:31:09   (   0.03,-136.80) (  -0.00,-136.75)    7.04                80