Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 1 27.  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)
 01/28/2019   02:52:06   (  79.47,  33.67) 01/28/2019   02:51:03  (  79.46,  33.61)    1.21                63
 01/28/2019   03:41:26   ( -79.73,-156.77) 01/28/2019   03:41:40  ( -79.74,-156.75)    0.28                14
 01/30/2019   19:08:33   (  79.56, 150.23) 01/30/2019   19:07:54  (  79.57, 150.25)    0.56                39
 01/30/2019   19:57:52   ( -79.83, -40.15) 01/30/2019   19:58:30  ( -79.83, -40.06)    1.68                38
 02/02/2019   11:24:58   (  79.69, -92.95) 02/02/2019   11:24:43  (  79.70, -92.83)    2.54                15
 02/02/2019   12:14:22   ( -79.82,  75.61) 02/02/2019   12:15:25  ( -79.81,  75.47)    3.00                63
 02/05/2019   02:52:07   ( -79.50,-146.11) 02/05/2019   02:50:59  ( -79.50,-146.11)    0.19                68
 02/05/2019   03:41:27   (  79.71,  23.04) 02/05/2019   03:41:37  (  79.70,  22.97)    1.52                10
 02/07/2019   19:08:33   ( -79.62, -29.34) 02/07/2019   19:07:49  ( -79.63, -29.22)    2.38                44