Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2025 10 8.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 10/08/2025   03:17:15   (  73.77, 120.29) 10/08/2025   03:16:08  (  73.80, 117.67)   81.56                67
 10/08/2025   04:07:58   ( -73.76, -72.35) 10/08/2025   04:06:51  ( -73.79, -75.03)   83.19                67