Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 3 15.  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)
 03/16/2025   08:11:52   (  -0.03,-104.39) (  -0.52,-102.07)  262.89                80
 03/17/2025   20:33:49   (   0.03,-104.42) (  -0.62,-107.39)  338.24                80
 03/18/2025   20:17:44   (   0.03,-104.42) (   0.37,-102.85)  178.29                80
 03/20/2025   08:39:30   (  -0.03,-104.39) (   0.81,-108.12)  425.37                80
 03/21/2025   08:18:05   (  -0.03,-104.38) (  -0.18,-103.58)   90.92                80
 03/23/2025   20:23:55   (   0.02,-104.41) (   0.01,-104.35)    6.03                80
 03/26/2025   08:26:56   (  -0.00,-104.37) (   0.16,-105.08)   81.15                80
 03/27/2025   08:05:31   (  -0.00,-104.37) (  -0.85,-100.55)  435.23                80
 03/28/2025   20:27:26   (   0.00,-104.40) (  -0.34,-105.85)  166.07                80