Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 26.  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)
 08/28/2017   19:08:18   ( -79.22, -32.17) 08/28/2017   19:08:06  ( -79.21, -32.31)    3.17                12
 08/28/2017   19:57:36   (  79.53, 137.53) 08/28/2017   19:58:41  (  79.53, 137.48)    1.13                65
 08/31/2017   10:35:22   (  79.10, -84.73) 08/31/2017   10:34:20  (  79.09, -84.72)    0.19                62
 08/31/2017   11:24:43   ( -79.34,  84.43) 08/31/2017   11:24:59  ( -79.33,  84.31)    2.90                16
 09/03/2017   02:51:48   (  79.20,  31.82) 09/03/2017   02:51:14  (  79.21,  31.87)    1.01                34
 09/03/2017   03:41:09   ( -79.44,-158.98) 09/03/2017   03:41:53  ( -79.43,-159.07)    2.04                44
 09/05/2017   19:08:13   (  79.34, 148.61) 09/05/2017   19:08:07  (  79.35, 148.73)    2.59                 6
 09/05/2017   19:57:35   ( -79.54, -42.41) 09/05/2017   19:58:47  ( -79.54, -42.43)    0.59                72
 09/08/2017   10:35:21   ( -79.14,  95.52) 09/08/2017   10:34:26  ( -79.14,  95.60)    1.98                55