Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 31.  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, -84.89) 08/31/2017   10:34:21  (  79.07, -84.89)    0.17                62
 08/31/2017   11:24:43   ( -79.34,  84.49) 08/31/2017   11:24:59  ( -79.33,  84.37)    2.79                16
 09/03/2017   02:51:48   (  79.21,  31.89) 09/03/2017   02:51:14  (  79.22,  31.94)    1.19                34
 09/03/2017   03:41:09   ( -79.45,-158.94) 09/03/2017   03:41:53  ( -79.44,-159.01)    1.67                44
 09/05/2017   19:08:16   (  79.23, 147.89) 09/05/2017   19:08:11  (  79.22, 147.75)    3.15                 5
 09/05/2017   19:57:35   ( -79.54, -42.39) 09/05/2017   19:58:47  ( -79.55, -42.38)    0.28                72
 09/08/2017   10:35:22   ( -79.05,  95.01) 09/08/2017   10:34:28  ( -79.04,  94.88)    3.00                54
 09/08/2017   11:24:39   (  79.40, -95.13) 09/08/2017   11:25:02  (  79.40, -95.14)    0.43                23
 09/11/2017   02:51:46   ( -79.22,-148.07) 09/11/2017   02:51:20  ( -79.22,-148.06)    0.22                26
 09/11/2017   03:41:06   (  79.45,  21.06) 09/11/2017   03:41:58  (  79.43,  20.91)    3.21                52
 09/13/2017   18:19:33   (  77.23, 150.35) 09/13/2017   18:18:19  (  77.37, 149.78)   20.74                74