Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 23.  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)
 09/25/2019   02:52:00   (  79.13,  31.36) 09/25/2019   02:51:21  (  79.12,  31.27)    1.98                39
 09/25/2019   03:41:19   ( -79.45,-158.93) 09/25/2019   03:41:57  ( -79.45,-158.91)    0.43                38
 09/27/2019   19:08:27   (  79.23, 147.86) 09/27/2019   19:08:13  (  79.23, 147.80)    1.26                14
 09/27/2019   19:57:46   ( -79.55, -42.37) 09/27/2019   19:58:49  ( -79.55, -42.33)    0.90                63
 09/30/2019   10:35:33   ( -79.14,  95.53) 09/30/2019   10:34:26  ( -79.15,  95.67)    3.01                67
 09/30/2019   11:24:53   (  79.36, -95.40) 09/30/2019   11:25:04  (  79.36, -95.40)    0.07                11
 10/03/2019   02:52:02   ( -79.11,-148.74) 10/03/2019   02:51:21  ( -79.11,-148.83)    1.94                41
 10/03/2019   03:41:19   (  79.45,  21.07) 10/03/2019   03:41:55  (  79.46,  21.15)    1.77                36
 10/05/2019   19:08:28   ( -79.24, -32.06) 10/05/2019   19:08:12  ( -79.24, -32.06)    0.14                16