Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 12 1.  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)
 12/02/2017   19:08:28   ( -79.62, -29.42) 12/02/2017   19:08:07  ( -79.61, -29.43)    0.31                21
 12/02/2017   19:57:47   (  79.87, 140.13) 12/02/2017   19:58:43  (  79.87, 140.23)    1.95                56
 12/05/2017   10:36:42   (  76.58, -96.10) 12/05/2017   10:35:29  (  76.75, -97.24)   34.72                73
 12/05/2017   11:24:57   ( -79.68,  86.94) 12/05/2017   11:24:59  ( -79.69,  86.99)    1.04                 2
 12/08/2017   02:52:04   (  79.51,  33.93) 12/08/2017   02:51:12  (  79.51,  33.93)    0.15                52
 12/08/2017   03:41:26   ( -79.70,-157.02) 12/08/2017   03:41:52  ( -79.70,-157.17)    3.01                26
 12/10/2017   19:08:33   (  79.56, 150.17) 12/10/2017   19:08:05  (  79.55, 150.03)    3.06                28
 12/10/2017   19:57:53   ( -79.83, -40.22) 12/10/2017   19:58:42  ( -79.83, -40.20)    0.52                49
 12/13/2017   11:24:59   (  79.71, -92.84) 12/13/2017   11:24:54  (  79.72, -92.77)    1.43                 5