Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 6.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2019   12:14:57   ( -79.60,  73.78) 04/07/2019   12:14:54  ( -79.60,  73.86)    1.70                 3
 04/07/2019   13:03:40   (  80.97,-105.26) 04/07/2019   13:04:54  (  80.77,-104.88)   23.03                74
 04/10/2019   03:42:02   (  79.42,  20.82) 04/10/2019   03:41:07  (  79.43,  20.86)    1.01                55
 04/10/2019   04:31:24   ( -79.62,-170.20) 04/10/2019   04:31:47  ( -79.61,-170.30)    2.07                23
 04/12/2019   19:58:29   (  79.44, 136.79) 04/12/2019   19:58:00  (  79.43, 136.67)    2.67                29
 04/12/2019   20:47:48   ( -79.74, -53.40) 04/12/2019   20:48:36  ( -79.74, -53.36)    0.87                48
 04/15/2019   12:14:52   (  79.56,-106.46) 04/15/2019   12:14:48  (  79.56,-106.45)    0.49                 4
 04/15/2019   13:04:14   ( -79.75,  62.57) 04/15/2019   13:05:28  ( -79.75,  62.46)    2.34                74
 04/18/2019   03:41:57   ( -79.43,-159.16) 04/18/2019   03:41:01  ( -79.43,-159.07)    1.93                56