Simultaneous Nadir Overpasses (SNOs) between NPP and METOP-C
TLE Epoch: 2020 9 4.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2020   19:59:18   ( -73.43,  50.56) 09/18/2020   20:00:25  ( -73.35,  53.29)   87.19                67
 09/18/2020   20:49:59   (  73.21,-141.62) 09/18/2020   20:51:08  (  73.16,-139.81)   58.49                69