Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 2 15.  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)
 02/18/2019   11:25:06   (  79.63, -93.40) 02/18/2019   11:24:38  (  79.63, -93.45)    1.15                28
 02/18/2019   12:14:28   ( -79.82,  75.70) 02/18/2019   12:15:17  ( -79.82,  75.63)    1.37                49
 02/21/2019   03:41:34   (  79.72,  23.11) 02/21/2019   03:41:29  (  79.72,  23.14)    0.57                 5
 02/21/2019   04:30:56   ( -79.91,-167.76) 02/21/2019   04:32:08  ( -79.91,-167.74)    0.24                72
 02/23/2019   19:08:45   ( -79.48, -30.37) 02/23/2019   19:07:46  ( -79.47, -30.52)    3.13                59
 02/23/2019   19:58:02   (  79.80, 139.60) 02/23/2019   19:58:20  (  79.81, 139.73)    2.56                18
 02/26/2019   11:25:12   ( -79.60,  86.35) 02/26/2019   11:24:36  ( -79.60,  86.31)    0.92                36
 02/26/2019   12:14:32   (  79.80,-104.47) 02/26/2019   12:15:14  (  79.80,-104.55)    1.60                42
 03/01/2019   03:41:38   ( -79.71,-156.93) 03/01/2019   03:41:25  ( -79.72,-156.85)    1.67                13