Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 7.  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)
 08/07/2017   11:24:44   (  79.35, -95.49) 08/07/2017   11:24:38  (  79.35, -95.42)    1.46                 6
 08/07/2017   12:14:06   ( -79.55,  73.50) 08/07/2017   12:15:18  ( -79.54,  73.43)    1.54                72
 08/10/2017   02:51:51   ( -79.18,-148.31) 08/10/2017   02:50:56  ( -79.20,-148.18)    3.07                55
 08/10/2017   03:41:11   (  79.41,  20.79) 08/10/2017   03:41:34  (  79.41,  20.75)    0.91                23
 08/12/2017   19:08:17   ( -79.28, -31.81) 08/12/2017   19:07:51  ( -79.28, -31.75)    1.26                26
 08/12/2017   19:57:38   (  79.47, 137.05) 08/12/2017   19:58:30  (  79.46, 136.92)    2.70                52
 08/15/2017   10:35:57   (  77.63, -92.15) 08/15/2017   10:34:43  (  77.75, -92.60)   16.94                74
 08/15/2017   11:24:44   ( -79.33,  84.42) 08/15/2017   11:24:47  ( -79.34,  84.41)    0.19                 3
 08/18/2017   02:51:47   (  79.21,  31.88) 08/18/2017   02:51:01  (  79.22,  31.98)    2.21                46
 08/18/2017   03:41:09   ( -79.42,-159.13) 08/18/2017   03:41:41  ( -79.42,-159.16)    0.69                32
 08/20/2017   19:08:13   (  79.30, 148.29) 08/20/2017   19:07:56  (  79.30, 148.38)    2.03                17