Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 6 21.  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   19:08:28   (  79.40, 148.97) 06/23/2019   19:07:56  (  79.41, 149.12)    3.09                32
 06/23/2019   19:57:52   ( -79.53, -42.53) 06/23/2019   19:58:38  ( -79.52, -42.66)    2.83                46
 06/26/2019   11:24:55   (  79.44, -94.88) 06/26/2019   11:24:51  (  79.45, -94.82)    1.40                 4
 06/26/2019   12:14:16   ( -79.68,  74.45) 06/26/2019   12:15:29  ( -79.69,  74.53)    1.74                73
 06/29/2019   02:52:02   ( -79.26,-147.82) 06/29/2019   02:51:08  ( -79.27,-147.78)    0.86                54
 06/29/2019   03:41:21   (  79.52,  21.51) 06/29/2019   03:41:45  (  79.52,  21.52)    0.12                24
 07/01/2019   19:08:27   ( -79.34, -31.46) 07/01/2019   19:08:01  ( -79.34, -31.47)    0.19                26
 07/01/2019   19:57:46   (  79.59, 137.88) 07/01/2019   19:58:38  (  79.58, 137.85)    0.82                52
 07/04/2019   10:36:29   (  76.64, -95.95) 07/04/2019   10:35:15  (  76.82, -96.79)   29.96                74