Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 13.  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)
 08/15/2017   10:36:02   (  77.40, -93.10) 08/15/2017   10:34:48  (  77.53, -93.62)   19.48                74
 08/15/2017   11:24:44   ( -79.33,  84.37) 08/15/2017   11:24:47  ( -79.33,  84.34)    0.61                 3
 08/18/2017   02:51:48   (  79.17,  31.63) 08/18/2017   02:51:02  (  79.18,  31.67)    0.85                46
 08/18/2017   03:41:09   ( -79.42,-159.16) 08/18/2017   03:41:41  ( -79.41,-159.25)    1.90                32
 08/20/2017   19:08:14   (  79.26, 148.05) 08/20/2017   19:07:57  (  79.26, 148.05)    0.16                17
 08/20/2017   19:57:35   ( -79.50, -42.71) 08/20/2017   19:58:36  ( -79.49, -42.84)    2.84                61
 08/23/2017   10:35:22   ( -79.03,  94.89) 08/23/2017   10:34:17  ( -79.02,  94.77)    2.85                65
 08/23/2017   11:24:40   (  79.34, -95.55) 08/23/2017   11:24:52  (  79.34, -95.58)    0.73                12
 08/26/2017   02:51:48   ( -79.11,-148.75) 08/26/2017   02:51:12  ( -79.10,-148.89)    3.15                36