Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 6 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)
 06/23/2019   19:08:29   (  79.39, 148.87) 06/23/2019   19:07:57  (  79.40, 149.00)    2.85                32
 06/23/2019   19:57:52   ( -79.55, -42.38) 06/23/2019   19:58:38  ( -79.54, -42.52)    2.92                46
 06/26/2019   11:24:55   (  79.43, -94.98) 06/26/2019   11:24:51  (  79.43, -94.94)    0.92                 4
 06/26/2019   12:14:16   ( -79.67,  74.33) 06/26/2019   12:15:29  ( -79.67,  74.39)    1.40                73
 06/29/2019   02:52:02   ( -79.25,-147.92) 06/29/2019   02:51:08  ( -79.25,-147.92)    0.10                54
 06/29/2019   03:41:21   (  79.50,  21.42) 06/29/2019   03:41:45  (  79.50,  21.38)    0.80                24
 07/01/2019   19:08:28   ( -79.32, -31.55) 07/01/2019   19:08:02  ( -79.32, -31.62)    1.50                26
 07/01/2019   19:57:47   (  79.57, 137.79) 07/01/2019   19:58:39  (  79.57, 137.69)    2.24                52
 07/04/2019   10:36:43   (  75.99, -98.05) 07/04/2019   10:35:30  (  76.17, -99.24)   37.37                73
 07/04/2019   11:24:54   ( -79.39,  84.80) 07/04/2019   11:24:56  ( -79.38,  84.67)    2.77                 2
 07/07/2019   02:51:55   (  79.32,  32.58) 07/07/2019   02:51:07  (  79.33,  32.70)    2.57                48