Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 1 22.  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)
 01/22/2015   07:18:51   ( -78.08, 139.35) 01/22/2015   07:18:27  ( -78.08, 139.41)    1.42                24
 01/22/2015   08:08:08   (  78.46, -51.11) 01/22/2015   08:09:02  (  78.46, -51.21)    2.44                54
 01/24/2015   23:35:19   ( -78.14,-104.45) 01/24/2015   23:35:15  ( -78.14,-104.49)    1.05                 4
 01/25/2015   00:24:31   (  78.73,  66.23) 01/25/2015   00:25:44  (  78.74,  66.28)    1.29                73
 01/27/2015   15:02:30   (  77.73,-158.07) 01/27/2015   15:01:29  (  77.73,-158.10)    0.66                61
 01/27/2015   15:51:43   ( -78.36,  12.48) 01/27/2015   15:51:59  ( -78.35,  12.46)    0.48                16
 01/30/2015   07:18:50   (  78.10, -40.52) 01/30/2015   07:18:09  (  78.11, -40.41)    2.65                41
 01/30/2015   08:08:10   ( -78.41, 128.66) 01/30/2015   08:08:47  ( -78.41, 128.53)    2.93                37
 02/01/2015   23:35:12   (  78.30,  76.35) 02/01/2015   23:34:52  (  78.31,  76.48)    2.96                20
 02/02/2015   00:24:32   ( -78.61,-114.41) 02/02/2015   00:25:30  ( -78.61,-114.50)    2.32                58
 02/04/2015   15:03:15   ( -75.44,  13.96) 02/04/2015   15:02:01  ( -75.53,  13.48)   16.97                74
 02/04/2015   15:51:38   (  78.35,-167.51) 02/04/2015   15:51:40  (  78.35,-167.51)    0.28                 2