Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 9 22.  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)
 09/24/2017   10:35:26   ( -79.12,  95.43) 09/24/2017   10:34:36  ( -79.12,  95.45)    0.41                50
 09/24/2017   11:24:46   (  79.36, -95.42) 09/24/2017   11:25:14  (  79.35, -95.53)    2.46                28
 09/27/2017   02:51:55   ( -79.19,-148.27) 09/27/2017   02:51:31  ( -79.18,-148.32)    1.36                24
 09/27/2017   03:41:12   (  79.53,  21.67) 09/27/2017   03:42:05  (  79.54,  21.79)    2.67                53
 09/29/2017   18:20:17   (  75.58, 144.84) 09/29/2017   18:19:04  (  75.75, 143.66)   37.87                73
 09/29/2017   19:08:23   ( -79.25, -31.99) 09/29/2017   19:08:25  ( -79.24, -32.10)    2.41                 2
 10/02/2017   10:35:29   (  79.14, -84.47) 10/02/2017   10:34:39  (  79.15, -84.35)    2.84                50
 10/02/2017   11:24:51   ( -79.35,  84.50) 10/02/2017   11:25:19  ( -79.34,  84.38)    2.84                28
 10/05/2017   02:52:00   (  79.11,  31.22) 10/05/2017   02:51:37  (  79.10,  31.08)    3.10                23