Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 24.  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,  31.39) 09/25/2019   02:51:21  (  79.13,  31.29)    2.10                39
 09/25/2019   03:41:19   ( -79.45,-158.90) 09/25/2019   03:41:57  ( -79.45,-158.89)    0.33                38
 09/27/2019   19:08:27   (  79.23, 147.89) 09/27/2019   19:08:13  (  79.23, 147.82)    1.52                14
 09/27/2019   19:57:46   ( -79.55, -42.34) 09/27/2019   19:58:49  ( -79.55, -42.31)    0.68                63
 09/30/2019   10:35:34   ( -79.10,  95.32) 09/30/2019   10:34:27  ( -79.11,  95.43)    2.57                67
 09/30/2019   11:24:54   (  79.33, -95.61) 09/30/2019   11:25:05  (  79.33, -95.64)    0.56                11
 10/03/2019   02:52:02   ( -79.12,-148.70) 10/03/2019   02:51:21  ( -79.11,-148.82)    2.66                41
 10/03/2019   03:41:19   (  79.46,  21.12) 10/03/2019   03:41:55  (  79.46,  21.17)    1.00                36
 10/05/2019   19:08:28   ( -79.25, -32.01) 10/05/2019   19:08:12  ( -79.24, -32.05)    1.10                16
 10/05/2019   19:57:45   (  79.58, 137.85) 10/05/2019   19:58:46  (  79.59, 138.00)    2.94                61
 10/08/2019   10:35:35   (  79.04, -85.09) 10/08/2019   10:34:27  (  79.04, -85.09)    0.09                68