Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 16.  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)
 05/17/2025   19:51:50   (   0.02, -94.39) (  -0.39, -96.30)  217.60                80
 05/18/2025   19:30:28   (   0.02, -94.90) (   0.69, -91.79)  354.38                80
 05/20/2025   07:55:01   (  -0.01, -95.68) (   0.28, -97.11)  162.66                80
 05/21/2025   07:33:39   (  -0.02, -96.20) (  -0.80, -92.60)  409.31                80
 05/22/2025   19:58:19   (   0.01, -97.01) (  -0.21, -97.95)  106.86                80
 05/23/2025   19:36:58   (   0.01, -97.53) (   0.93, -93.45)  465.38                80
 05/25/2025   08:01:30   (  -0.01, -98.31) (   0.09, -98.77)   51.28                80
 05/27/2025   20:02:09   (   0.01, -99.64) (   0.05, -99.62)    4.77                80
 05/30/2025   08:05:18   (  -0.01,-100.94) (  -0.13,-100.42)   59.26                80