Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2025   19:58:19   (   0.01, -97.03) (  -0.23, -97.95)  105.54                80
 05/23/2025   19:36:57   (   0.01, -97.55) (   0.91, -93.45)  466.98                80
 05/25/2025   08:01:30   (  -0.01, -98.33) (   0.10, -98.76)   49.60                80
 05/27/2025   20:02:08   (   0.01, -99.67) (   0.03, -99.61)    6.52                80
 05/30/2025   08:05:18   (  -0.01,-100.97) (  -0.11,-100.41)   62.49                80
 05/31/2025   20:29:58   (   0.01,-101.79) (  -0.91,-105.76)  453.35                80
 06/01/2025   20:08:37   (   0.01,-102.31) (   0.24,-101.26)  119.59                80
 06/03/2025   08:33:09   (  -0.00,-103.11) (   0.75,-106.58)  395.45                80
 06/04/2025   08:11:47   (  -0.01,-103.63) (  -0.34,-102.07)  177.52                80