Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 5 8.  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)
 05/09/2019   11:25:10   (  79.39, -95.27) 05/09/2019   11:24:31  (  79.39, -95.23)    0.98                39
 05/09/2019   12:14:32   ( -79.58,  73.68) 05/09/2019   12:15:11  ( -79.58,  73.61)    1.36                39
 05/12/2019   03:41:35   (  79.49,  21.26) 05/12/2019   03:41:25  (  79.48,  21.28)    0.40                10
 05/12/2019   04:30:57   ( -79.68,-169.75) 05/12/2019   04:32:05  ( -79.67,-169.85)    2.20                68
 05/14/2019   19:08:43   ( -79.24, -32.14) 05/14/2019   19:07:45  ( -79.23, -32.25)    2.38                58
 05/14/2019   19:58:01   (  79.54, 137.51) 05/14/2019   19:58:20  (  79.54, 137.51)    0.18                19
 05/17/2019   11:25:08   ( -79.33,  84.34) 05/17/2019   11:24:39  ( -79.32,  84.22)    2.60                29
 05/17/2019   12:14:25   (  79.63,-105.99) 05/17/2019   12:15:13  (  79.63,-105.99)    0.17                48
 05/20/2019   03:41:31   ( -79.46,-158.94) 05/20/2019   03:41:31  ( -79.45,-159.05)    2.43                 0
 05/20/2019   04:28:10   (  81.18,  71.60) 05/20/2019   04:29:22  (  80.36,  69.71)   96.53                72
 05/22/2019   19:08:34   (  79.33, 148.48) 05/22/2019   19:07:45  (  79.34, 148.55)    1.62                49