Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 9 2.  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)
 09/03/2017   02:51:48   (  79.22,  31.94) 09/03/2017   02:51:14  (  79.22,  31.99)    1.12                34
 09/03/2017   03:41:09   ( -79.45,-158.90) 09/03/2017   03:41:53  ( -79.44,-158.98)    1.82                44
 09/05/2017   19:08:12   (  79.36, 148.70) 09/05/2017   19:08:06  (  79.37, 148.85)    3.17                 6
 09/05/2017   19:57:34   ( -79.55, -42.35) 09/05/2017   19:58:46  ( -79.55, -42.35)    0.10                72
 09/08/2017   10:35:22   ( -79.06,  95.05) 09/08/2017   10:34:28  ( -79.05,  94.92)    3.05                54
 09/08/2017   11:24:40   (  79.37, -95.34) 09/08/2017   11:25:03  (  79.37, -95.36)    0.41                23
 09/11/2017   02:51:46   ( -79.22,-148.04) 09/11/2017   02:51:20  ( -79.22,-148.02)    0.33                26
 09/11/2017   03:41:07   (  79.41,  20.84) 09/11/2017   03:41:59  (  79.41,  20.70)    3.02                52
 09/13/2017   18:19:31   (  77.32, 150.74) 09/13/2017   18:18:17  (  77.46, 150.21)   19.68                74
 09/13/2017   19:08:13   ( -79.26, -31.90) 09/13/2017   19:08:16  ( -79.26, -31.98)    1.84                 3
 09/16/2017   10:35:16   (  79.13, -84.49) 09/16/2017   10:34:30  (  79.14, -84.45)    1.01                46