Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 23.  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)
 04/26/2019   03:41:46   (  79.37,  20.44) 04/26/2019   03:41:19  (  79.36,  20.31)    2.86                27
 04/26/2019   04:31:05   ( -79.67,-169.80) 04/26/2019   04:31:55  ( -79.68,-169.75)    1.24                50
 04/28/2019   19:10:17   ( -75.36, -48.19) 04/28/2019   19:09:03  ( -75.61, -49.50)   45.97                74
 04/28/2019   19:58:09   (  79.56, 137.60) 04/28/2019   19:58:10  (  79.56, 137.67)    1.47                 1
 05/01/2019   11:25:17   ( -79.32,  84.27) 05/01/2019   11:24:30  ( -79.32,  84.17)    2.21                47
 05/01/2019   12:14:36   (  79.59,-106.31) 05/01/2019   12:15:06  (  79.59,-106.32)    0.26                30
 05/04/2019   03:41:39   ( -79.50,-158.63) 05/04/2019   03:41:20  ( -79.51,-158.49)    2.94                19
 05/04/2019   04:31:01   (  79.65,  10.02) 05/04/2019   04:32:00  (  79.65,   9.96)    1.32                59
 05/06/2019   19:08:46   (  79.25, 147.90) 05/06/2019   19:07:39  (  79.24, 147.82)    1.68                67