Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 8.  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)
 01/09/2018   03:41:50   ( -79.69,-157.14) 01/09/2018   03:41:37  ( -79.68,-157.22)    1.63                13
 01/09/2018   04:31:10   (  79.91,  12.21) 01/09/2018   04:32:14  (  79.91,  12.24)    0.55                64
 01/11/2018   19:08:57   (  79.55, 150.12) 01/11/2018   19:07:49  (  79.56, 150.19)    1.63                68
 01/11/2018   19:58:18   ( -79.74, -40.88) 01/11/2018   19:58:28  ( -79.73, -40.98)    2.02                10
 01/14/2018   11:25:24   (  79.63, -93.41) 01/14/2018   11:24:39  (  79.64, -93.32)    2.07                45
 01/14/2018   12:14:46   ( -79.82,  75.62) 01/14/2018   12:15:19  ( -79.81,  75.53)    1.87                33
 01/17/2018   03:41:51   (  79.74,  23.30) 01/17/2018   03:41:29  (  79.75,  23.45)    3.08                22
 01/17/2018   04:31:14   ( -79.89,-167.91) 01/17/2018   04:32:10  ( -79.89,-167.96)    1.14                56
 01/19/2018   19:10:14   ( -76.36, -45.10) 01/19/2018   19:09:00  ( -76.58, -46.25)   38.94                74
 01/19/2018   19:58:21   (  79.74, 139.16) 01/19/2018   19:58:23  (  79.74, 139.08)    1.74                 2
 01/22/2018   11:25:27   ( -79.67,  86.84) 01/22/2018   11:24:34  ( -79.68,  86.99)    3.09                53