Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 4.  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)
 01/06/2018   11:25:22   ( -79.61,  86.40) 01/06/2018   11:24:46  ( -79.61,  86.36)    0.83                36
 01/06/2018   12:14:41   (  79.87,-104.00) 01/06/2018   12:15:22  (  79.87,-103.94)    1.07                41
 01/09/2018   03:41:50   ( -79.67,-157.30) 01/09/2018   03:41:37  ( -79.66,-157.40)    2.04                13
 01/09/2018   04:31:09   (  79.92,  12.30) 01/09/2018   04:32:13  (  79.92,  12.31)    0.29                64
 01/11/2018   19:08:56   (  79.57, 150.22) 01/11/2018   19:07:48  (  79.57, 150.26)    0.86                68
 01/11/2018   19:58:19   ( -79.72, -41.03) 01/11/2018   19:58:29  ( -79.71, -41.17)    2.86                10
 01/14/2018   11:25:25   (  79.61, -93.56) 01/14/2018   11:24:40  (  79.62, -93.53)    0.69                45
 01/14/2018   12:14:45   ( -79.87,  76.05) 01/14/2018   12:15:17  ( -79.88,  76.20)    3.13                32
 01/17/2018   03:41:53   (  79.69,  22.91) 01/17/2018   03:41:31  (  79.70,  22.95)    0.94                22