Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 7 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)
 07/20/2019   10:35:35   (  79.07, -84.90) 07/20/2019   10:34:24  (  79.06, -85.04)    3.06                71
 07/20/2019   11:24:54   ( -79.39,  84.79) 07/20/2019   11:25:00  ( -79.39,  84.69)    2.10                 6
 07/23/2019   02:51:59   (  79.24,  32.01) 07/23/2019   02:51:14  (  79.23,  31.95)    1.42                45
 07/23/2019   03:41:19   ( -79.52,-158.49) 07/23/2019   03:41:51  ( -79.51,-158.50)    0.38                32
 07/25/2019   19:08:26   (  79.32, 148.43) 07/25/2019   19:08:07  (  79.32, 148.43)    0.23                19
 07/25/2019   19:57:46   ( -79.60, -42.03) 07/25/2019   19:58:44  ( -79.60, -41.97)    1.28                58
 07/28/2019   10:35:36   ( -79.06,  95.05) 07/28/2019   10:34:26  ( -79.06,  94.93)    2.82                70
 07/28/2019   11:24:52   (  79.44, -94.88) 07/28/2019   11:24:59  (  79.45, -94.82)    1.25                 7
 07/31/2019   02:52:02   ( -79.19,-148.29) 07/31/2019   02:51:18  ( -79.19,-148.37)    1.74                44
 07/31/2019   03:41:19   (  79.53,  21.57) 07/31/2019   03:41:52  (  79.53,  21.67)    2.25                33
 08/02/2019   19:08:27   ( -79.32, -31.61) 08/02/2019   19:08:09  ( -79.31, -31.65)    0.86                18