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   10:38:11   (  70.77,-109.27) 08/31/2017   10:37:14  (  71.09,-111.45)   86.78                57
 08/31/2017   11:24:43   ( -79.34,  84.44) 08/31/2017   11:24:59  ( -79.33,  84.31)    2.87                16
 09/03/2017   02:51:48   (  79.21,  31.84) 09/03/2017   02:51:14  (  79.21,  31.89)    1.23                34
 09/03/2017   03:41:09   ( -79.44,-158.99) 09/03/2017   03:41:53  ( -79.43,-159.07)    1.74                44
 09/05/2017   19:08:16   (  79.22, 147.84) 09/05/2017   19:08:11  (  79.22, 147.70)    3.10                 5
 09/05/2017   19:57:35   ( -79.54, -42.44) 09/05/2017   19:58:47  ( -79.54, -42.44)    0.32                72
 09/08/2017   10:35:23   ( -79.04,  94.96) 09/08/2017   10:34:29  ( -79.03,  94.83)    3.00                54
 09/08/2017   11:24:39   (  79.39, -95.18) 09/08/2017   11:25:02  (  79.39, -95.19)    0.28                23
 09/11/2017   02:51:46   ( -79.21,-148.12) 09/11/2017   02:51:20  ( -79.21,-148.11)    0.29                26
 09/11/2017   03:41:06   (  79.44,  21.01) 09/11/2017   03:41:58  (  79.43,  20.87)    3.05                52
 09/13/2017   18:19:32   (  77.26, 150.49) 09/13/2017   18:18:18  (  77.40, 149.94)   20.33                74