Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 19.  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)
 05/20/2025   07:55:00   (  -0.01, -95.68) (   0.33, -97.10)  162.41                80
 05/21/2025   07:33:39   (  -0.02, -96.20) (  -0.81, -92.60)  409.68                80
 05/22/2025   19:58:19   (   0.01, -97.02) (  -0.21, -97.95)  106.02                80
 05/23/2025   19:36:58   (   0.01, -97.54) (   0.94, -93.45)  466.33                80
 05/25/2025   08:01:30   (  -0.01, -98.32) (   0.08, -98.77)   50.36                80
 05/27/2025   20:02:08   (   0.01, -99.65) (  -0.01, -99.60)    6.07                80
 05/30/2025   08:05:19   (  -0.01,-100.95) (  -0.14,-100.42)   60.86                80
 05/31/2025   20:29:59   (   0.01,-101.77) (  -0.87,-105.77)  455.42                80
 06/01/2025   20:08:36   (   0.01,-102.29) (   0.22,-101.26)  117.42                80