Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 19.  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)
 01/22/2018   11:25:29   ( -79.59,  86.30) 01/22/2018   11:24:36  ( -79.59,  86.31)    0.40                53
 01/22/2018   12:14:50   (  79.77,-104.70) 01/22/2018   12:15:15  (  79.77,-104.82)    2.51                25
 01/25/2018   03:41:56   ( -79.70,-157.03) 01/25/2018   03:41:26  ( -79.70,-156.96)    1.53                30
 01/25/2018   04:31:17   (  79.88,  11.98) 01/25/2018   04:32:05  (  79.87,  11.94)    0.86                48
 01/27/2018   19:58:22   ( -79.80, -40.37) 01/27/2018   19:58:15  ( -79.81, -40.22)    3.15                 7
 01/27/2018   20:47:43   (  79.97, 128.65) 01/27/2018   20:48:54  (  79.97, 128.71)    1.16                71
 01/30/2018   11:25:31   (  79.56, -93.92) 01/30/2018   11:24:31  (  79.55, -94.01)    1.90                60
 01/30/2018   12:14:52   ( -79.79,  75.43) 01/30/2018   12:15:09  ( -79.79,  75.37)    1.23                17
 02/02/2018   03:41:57   (  79.69,  22.92) 02/02/2018   03:41:20  (  79.69,  22.96)    0.73                37