Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 1 20.  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)
 01/22/2019   19:08:33   ( -79.52, -30.09) 01/22/2019   19:07:59  ( -79.52, -30.19)    2.07                34
 01/22/2019   19:57:51   (  79.81, 139.69) 01/22/2019   19:58:34  (  79.82, 139.75)    1.20                43
 01/25/2019   11:24:59   ( -79.63,  86.59) 01/25/2019   11:24:49  ( -79.62,  86.49)    2.29                10
 01/25/2019   12:14:18   (  79.88,-103.89) 01/25/2019   12:15:25  (  79.88,-103.82)    1.41                67
 01/28/2019   02:52:04   (  79.55,  34.20) 01/28/2019   02:51:00  (  79.55,  34.32)    2.41                64
 01/28/2019   03:41:28   ( -79.67,-157.26) 01/28/2019   03:41:42  ( -79.67,-157.39)    2.66                14
 01/30/2019   19:08:32   (  79.62, 150.60) 01/30/2019   19:07:52  (  79.62, 150.71)    2.18                40
 01/30/2019   19:57:56   ( -79.74, -40.83) 01/30/2019   19:58:34  ( -79.74, -40.98)    3.18                38
 02/02/2019   11:25:00   (  79.69, -92.99) 02/02/2019   11:24:44  (  79.69, -92.91)    1.78                16