Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 15.  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)
 09/17/2019   02:51:56   ( -79.25,-147.90) 09/17/2019   02:51:19  ( -79.25,-147.81)    1.84                37
 09/17/2019   03:41:17   (  79.44,  21.00) 09/17/2019   03:41:58  (  79.43,  20.89)    2.43                41
 09/19/2019   19:08:24   ( -79.32, -31.54) 09/19/2019   19:08:12  ( -79.32, -31.50)    1.01                12
 09/19/2019   19:57:45   (  79.51, 137.35) 09/19/2019   19:58:51  (  79.50, 137.22)    2.96                66
 09/22/2019   10:35:33   (  79.02, -85.17) 09/22/2019   10:34:29  (  79.02, -85.26)    1.98                64
 09/22/2019   11:24:51   ( -79.39,  84.79) 09/22/2019   11:25:04  ( -79.39,  84.82)    0.54                13
 09/25/2019   02:52:00   (  79.13,  31.35) 09/25/2019   02:51:21  (  79.13,  31.26)    1.87                39
 09/25/2019   03:41:19   ( -79.46,-158.89) 09/25/2019   03:41:57  ( -79.46,-158.87)    0.44                38
 09/27/2019   19:08:27   (  79.23, 147.86) 09/27/2019   19:08:13  (  79.23, 147.79)    1.39                14