Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 5.  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   (  79.37, -95.38) 08/07/2017   11:24:38  (  79.37, -95.31)    1.50                 6
 08/07/2017   12:14:06   ( -79.57,  73.63) 08/07/2017   12:15:18  ( -79.56,  73.56)    1.58                72
 08/10/2017   02:51:51   ( -79.20,-148.19) 08/10/2017   02:50:56  ( -79.21,-148.06)    3.02                55
 08/10/2017   03:41:12   (  79.39,  20.65) 08/10/2017   03:41:35  (  79.39,  20.60)    0.93                23
 08/12/2017   19:08:17   ( -79.26, -31.94) 08/12/2017   19:07:51  ( -79.27, -31.89)    1.20                26
 08/12/2017   19:57:37   (  79.48, 137.17) 08/12/2017   19:58:29  (  79.47, 137.04)    2.74                52
 08/15/2017   10:35:57   (  77.61, -92.26) 08/15/2017   10:34:43  (  77.73, -92.71)   17.20                74
 08/15/2017   11:24:43   ( -79.35,  84.54) 08/15/2017   11:24:46  ( -79.35,  84.54)    0.16                 3
 08/18/2017   02:51:48   (  79.19,  31.75) 08/18/2017   02:51:02  (  79.20,  31.84)    2.07                46