Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-15) NOAA-15 Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2021   00:29:42   (  81.01,-150.39) 05/13/2021   00:28:38  (  81.01,-150.36)    0.58                64
 05/13/2021   01:20:17   ( -81.01,  16.88) 05/13/2021   01:19:19  ( -81.00,  16.89)    1.03                58
 05/13/2021   02:10:44   (  81.00,-175.56) 05/13/2021   02:09:59  (  81.01,-175.49)    1.67                45