Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 1 18.  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)
 01/19/2017   10:35:22   (  79.42, -82.52) 01/19/2017   10:34:19  (  79.41, -82.59)    1.56                63
 01/19/2017   11:24:42   ( -79.68,  86.99) 01/19/2017   11:24:56  ( -79.68,  86.96)    0.72                14
 01/22/2017   02:51:48   (  79.48,  33.81) 01/22/2017   02:51:10  (  79.48,  33.71)    1.93                38
 01/22/2017   03:41:08   ( -79.75,-156.64) 01/22/2017   03:41:47  ( -79.74,-156.70)    1.24                39
 01/24/2017   19:08:14   (  79.58, 150.37) 01/24/2017   19:08:01  (  79.57, 150.28)    1.79                13
 01/24/2017   19:57:35   ( -79.80, -40.31) 01/24/2017   19:58:39  ( -79.80, -40.38)    1.25                64
 01/27/2017   10:35:20   ( -79.45,  97.72) 01/27/2017   10:34:14  ( -79.45,  97.73)    0.19                66
 01/27/2017   11:24:40   (  79.67, -93.09) 01/27/2017   11:24:52  (  79.67, -93.15)    1.17                12
 01/30/2017   02:51:46   ( -79.54,-145.78) 01/30/2017   02:51:05  ( -79.54,-145.73)    1.16                41