Simultaneous Nadir Overpasses (SNOs) between NPP and METOP-C
TLE Epoch: 2019 1 16.  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)
 01/16/2019   21:46:46   (  71.96,-153.41) 01/16/2019   21:45:39  (  71.98,-155.99)   88.89                67
 01/16/2019   22:37:29   ( -71.91,  14.00) 01/16/2019   22:36:23  ( -71.93,  11.24)   95.45                66