Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 29.  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)
 08/31/2017   10:35:23   (  79.07, -84.88) 08/31/2017   10:34:21  (  79.07, -84.89)    0.24                62
 08/31/2017   11:24:44   ( -79.31,  84.26) 08/31/2017   11:25:00  ( -79.30,  84.12)    3.07                16
 09/03/2017   02:51:48   (  79.22,  31.91) 09/03/2017   02:51:14  (  79.22,  31.94)    0.52                34
 09/03/2017   03:41:10   ( -79.42,-159.16) 09/03/2017   03:41:54  ( -79.41,-159.28)    2.53                44
 09/05/2017   19:08:13   (  79.32, 148.44) 09/05/2017   19:08:07  (  79.32, 148.51)    1.61                 6
 09/05/2017   19:57:35   ( -79.51, -42.59) 09/05/2017   19:58:47  ( -79.51, -42.67)    1.55                72
 09/08/2017   10:35:21   ( -79.11,  95.34) 09/08/2017   10:34:26  ( -79.11,  95.36)    0.49                55
 09/08/2017   11:24:41   (  79.34, -95.56) 09/08/2017   11:25:04  (  79.33, -95.71)    3.18                23
 09/11/2017   02:51:46   ( -79.24,-147.95) 09/11/2017   02:51:19  ( -79.25,-147.85)    2.24                27