Simultaneous Nadir Overpasses (SNOs) between NPP and METOP-C
TLE Epoch: 2019 4 30.  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)
 04/30/2019   20:55:30   (  72.02,-140.75) 04/30/2019   20:54:22  (  72.02,-142.94)   75.17                68
 04/30/2019   21:46:13   ( -71.97,  26.65) 04/30/2019   21:45:05  ( -71.96,  24.29)   81.56                68