Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 4.  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   (  79.34, -95.54) 08/07/2017   11:24:38  (  79.35, -95.48)    1.54                 6
 08/07/2017   12:14:06   ( -79.54,  73.46) 08/07/2017   12:15:18  ( -79.54,  73.39)    1.57                72
 08/10/2017   02:51:50   ( -79.22,-148.10) 08/10/2017   02:50:55  ( -79.23,-147.96)    3.02                55
 08/10/2017   03:41:11   (  79.40,  20.74) 08/10/2017   03:41:34  (  79.40,  20.70)    0.88                23
 08/12/2017   19:08:17   ( -79.28, -31.85) 08/12/2017   19:07:51  ( -79.28, -31.79)    1.15                26
 08/12/2017   19:57:38   (  79.46, 137.00) 08/12/2017   19:58:30  (  79.45, 136.87)    2.76                52
 08/15/2017   10:35:58   (  77.58, -92.38) 08/15/2017   10:34:44  (  77.70, -92.84)   17.52                74
 08/15/2017   11:24:44   ( -79.33,  84.38) 08/15/2017   11:24:47  ( -79.33,  84.37)    0.27                 3
 08/18/2017   02:51:48   (  79.21,  31.84) 08/18/2017   02:51:02  (  79.21,  31.93)    1.88                46