Simultaneous Nadir Overpasses (SNOs) between NPP and METOP-C
TLE Epoch: 2021 11 6.  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)
 11/06/2021   02:52:27   (  72.03, 130.13) 11/06/2021   02:51:19  (  71.98, 127.90)   76.99                68
 11/06/2021   03:43:10   ( -71.99, -62.47) 11/06/2021   03:42:02  ( -71.96, -64.81)   80.58                68