Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 1 12.  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)
 01/14/2019   19:08:28   (  79.61, 150.53) 01/14/2019   19:07:58  (  79.61, 150.58)    0.98                30
 01/14/2019   19:57:51   ( -79.76, -40.72) 01/14/2019   19:58:39  ( -79.75, -40.83)    2.25                48
 01/17/2019   11:24:56   (  79.65, -93.26) 01/17/2019   11:24:51  (  79.65, -93.28)    0.31                 5
 01/17/2019   12:14:16   ( -79.91,  76.36) 01/17/2019   12:15:28  ( -79.92,  76.49)    2.59                72
 01/20/2019   02:52:02   ( -79.52,-146.00) 01/20/2019   02:51:04  ( -79.53,-145.91)    1.98                58
 01/20/2019   03:41:23   (  79.70,  22.93) 01/20/2019   03:41:43  (  79.69,  22.86)    1.47                20
 01/22/2019   19:08:29   ( -79.60, -29.55) 01/22/2019   19:07:56  ( -79.60, -29.52)    0.57                33
 01/22/2019   19:57:50   (  79.77, 139.38) 01/22/2019   19:58:35  (  79.76, 139.27)    2.47                45
 01/25/2019   11:24:57   ( -79.64,  86.62) 01/25/2019   11:24:49  ( -79.64,  86.59)    0.74                 8