Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/05/2025   20:17:12   (   0.01,-104.40) (   0.36,-102.75)  187.89                80
 05/07/2025   08:39:02   (  -0.00,-104.39) (   0.81,-108.03)  415.19                80
 05/08/2025   08:17:39   (  -0.00,-104.40) (  -0.20,-103.51)  101.16                80
 05/10/2025   20:23:33   (   0.01,-104.43) (   0.02,-104.29)   16.17                80
 05/13/2025   08:26:40   (  -0.01,-104.43) (   0.12,-105.05)   70.29                80
 05/14/2025   08:05:16   (  -0.01,-104.43) (  -0.91,-100.52)  445.84                80
 05/15/2025   20:27:13   (   0.01,-104.45) (  -0.28,-105.83)  156.61                80
 05/16/2025   20:11:09   (   0.01,-104.46) (   0.69,-101.30)  359.83                80
 05/18/2025   08:32:59   (  -0.00,-104.45) (   0.46,-106.58)  242.76                80