Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 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)
 08/02/2017   02:51:52   (  79.15,  31.45) 08/02/2017   02:50:49  (  79.15,  31.52)    1.69                63
 08/02/2017   03:41:14   ( -79.35,-159.59) 08/02/2017   03:41:29  ( -79.35,-159.67)    1.79                15
 08/04/2017   19:08:20   (  79.18, 147.51) 08/04/2017   19:07:46  (  79.17, 147.44)    1.68                34
 08/04/2017   19:57:39   ( -79.50, -42.72) 08/04/2017   19:58:22  ( -79.51, -42.66)    1.42                43
 08/07/2017   11:24:44   (  79.36, -95.43) 08/07/2017   11:24:38  (  79.36, -95.34)    1.88                 6
 08/07/2017   12:14:06   ( -79.56,  73.60) 08/07/2017   12:15:18  ( -79.56,  73.54)    1.31                72
 08/10/2017   02:51:54   ( -79.08,-148.95) 08/10/2017   02:51:00  ( -79.07,-149.09)    2.99                54
 08/10/2017   03:41:11   (  79.42,  20.85) 08/10/2017   03:41:34  (  79.42,  20.83)    0.46                23
 08/12/2017   19:08:17   ( -79.26, -31.97) 08/12/2017   19:07:51  ( -79.27, -31.90)    1.58                26