Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2025 1 19.  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)
 01/19/2025   03:30:02   (  73.20, 118.54) 01/19/2025   03:28:55  (  73.21, 116.08)   79.09                67
 01/19/2025   04:20:45   ( -73.17, -74.07) 01/19/2025   04:19:38  ( -73.17, -76.67)   83.81                67