Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 17.  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)
 09/19/2019   19:08:24   ( -79.32, -31.57) 09/19/2019   19:08:12  ( -79.32, -31.52)    0.91                12
 09/19/2019   19:57:45   (  79.51, 137.34) 09/19/2019   19:58:51  (  79.50, 137.20)    3.06                66
 09/22/2019   10:35:33   (  79.02, -85.17) 09/22/2019   10:34:29  (  79.02, -85.27)    2.11                64
 09/22/2019   11:24:51   ( -79.39,  84.78) 09/22/2019   11:25:04  ( -79.39,  84.79)    0.39                13
 09/25/2019   02:52:00   (  79.13,  31.35) 09/25/2019   02:51:21  (  79.12,  31.26)    2.03                39
 09/25/2019   03:41:19   ( -79.45,-158.90) 09/25/2019   03:41:57  ( -79.46,-158.89)    0.24                38
 09/27/2019   19:08:27   (  79.23, 147.87) 09/27/2019   19:08:13  (  79.23, 147.79)    1.58                14
 09/27/2019   19:57:46   ( -79.55, -42.33) 09/27/2019   19:58:49  ( -79.55, -42.31)    0.54                63
 09/30/2019   10:35:34   ( -79.11,  95.34) 09/30/2019   10:34:27  ( -79.12,  95.44)    2.21                67